AI-generatedHarbour Island at a glance
- Best time
- Nov – May
- Warmest month
- Aug · 31°
- Warmest sea
- Aug · 29.5°
- Sunshine a year
- 2,940 h
- Rain a year
- 941 mm
- Climate
- Tropical
- Time zone
- UTC−5 / UTC−4
- Elevation
- 18 m
Climate in Harbour Island
Harbour Island has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. August is the warmest month with average highs of 31 °C, while January is the coolest at 25 °C. With around 2,940 hours of sunshine a year, Harbour Island is sunny; April is the sunniest month with 9.3 hours a day.
Holiday weather through the year
Best time to visit Harbour Island
The best time to visit Harbour Island is from November to May. For a beach holiday – sea from 21 °C, warm and mostly dry – go from November to May. For sightseeing, day trips and hiking, conditions are most comfortable from November to April. The rainy season is from June to October; the wettest month is September with 148 mm.
Harbour Island through the seasons
How the weather changes over the seasons, with averages for each.
Harbour Island in the dry season
Nov – May
Excellent
- 25–29 °C by day
- Sea 25 °C
- 8.0 h of sun a day
- 54 rainy days in all
Harbour Island in the rainy season
Jun – Oct
Good
- 29–31 °C by day
- Sea 29 °C
- 8.1 h of sun a day
- 79 rainy days in all
Which month for what?
Beach & swimming
Nov – May
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Nov – Apr
15–28 °C and not too much rain
Rainy months
Jun – Oct
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Harbour Island for you.
Your best months: April – May, November
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: November – May
October is the peak of the hurricane season Hurricane season
Where to go in OctoberSea temperature in October
Keep in mindFrequent rainStorm season
A typical day in October
- Morning, 08:00: about 25°
- Midday, 13:00: about 29°
- Afternoon, 16:00: about 29°
- Evening, 20:00: about 27°
- Night, 23:00: about 26°
07:0418:40
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:50–07:35 · evening 18:09–18:54
- Blue hour
- Morning 06:41–06:50 · evening 18:54–19:03
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Harbour Island compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 30° at the start of the month to 28° at the end. The sea cools from 29° to 27°. The days get 0.7 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 30° | 28° |
| Night-time low | 25° | 23° |
| Sea | 29° | 27° |
| Daylight | 11.9 h | 11.2 h |
What is the weather like in Harbour Island in October?
In October, Harbour Island is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 7.5 hours a day. It is the rainy season: rain falls on about 16 days, totalling 137 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, October is a good month for a holiday in Harbour Island.
More details for October
- Daylight
- 11 h 36 min07:04 – 18:40
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 28 daysdew point 18 °C or moreAll months
- Wind
- 29 km/haverage daily peakAll months
- Cloud cover
- 55 %on averageAll months
- Hot days
- 5 days30 °C or moreAll months
- Time zone
- UTC−4offset from UTC
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 20 %12 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Compare two months in Harbour Island
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
April has the better holiday weather in Harbour Island: score 96 against 77. In April, days are 2 °C cooler than in October. The sea is 4 °C cooler in April. April has 9 fewer rainy days. The sun shines 2 hours longer a day in April.
| Month | October | April |
|---|---|---|
| Holiday weather score | 77 | 96better |
| Daytime high | 29° | 27° |
| Night-time low | 24° | 22° |
| Sea | 28.2° | 24.7° |
| Sunshine | 7.5 h | 9.3 hbetter |
| Rainy days | 16 | 7better |
| Rainfall | 137 mm | 44 mmbetter |
| Muggy days | 28 | 18better |
Based on the climate averages 1996–2025.
Harbour Island month by month
The typical weather for every month at a glance.
86January25° · Sea 24° · 7.0 h
In January, Harbour Island is warm: daytime highs average 25 °C, and even at night it stays warm at around 20 °C. The sea averages 24.3 °C – pleasant for swimming. The sun shines for around 7.0 hours a day. Rain falls on about 8 days, adding up to 48 mm. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, January is an excellent month for a holiday in Harbour Island.
Harbour Island in January94February25° · Sea 24° · 8.0 h
In February, Harbour Island is warm: daytime highs average 25 °C, and even at night it stays warm at around 20 °C. The sea averages 23.9 °C – pleasant for swimming. The sun shines for around 8.0 hours a day. Rain falls on about 6 days, adding up to 36 mm. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, February is an excellent month for a holiday in Harbour Island.
Harbour Island in February95March26° · Sea 24° · 8.6 h
In March, Harbour Island is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sea averages 24.0 °C – pleasant for swimming. The sun shines for around 8.6 hours a day. Rain falls on about 6 days, adding up to 40 mm. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, March is an excellent month for a holiday in Harbour Island.
Harbour Island in March96April27° · Sea 25° · 9.3 h
In April, Harbour Island is hot: daytime highs average 27 °C, and even at night it stays warm at around 22 °C. The sea averages 24.7 °C – pleasant for swimming. With around 9.3 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 44 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 28 km/h. All in all, April is an excellent month for a holiday in Harbour Island.
Harbour Island in April92May29° · Sea 26° · 9.1 h
In May, Harbour Island is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 26.0 °C – lovely and warm for swimming. With around 9.1 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 81 mm in total. The air is often humid and muggy. All in all, May is an excellent month for a holiday in Harbour Island.
Harbour Island in May81June30° · Sea 28° · 7.9 h
In June, Harbour Island is hot: daytime highs average 30 °C, and even at night it stays warm at around 25 °C. The sea averages 27.8 °C – lovely and warm for swimming. The sun shines for around 7.9 hours a day. It is the rainy season: rain falls on about 15 days, totalling 101 mm. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is an excellent month for a holiday in Harbour Island.
Harbour Island in June84July31° · Sea 29° · 8.9 h
In July, Harbour Island is hot: daytime highs average 31 °C, and even at night it stays warm at around 26 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 8.9 hours a day. It is the rainy season: rain falls on about 14 days, totalling 82 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Harbour Island.
Harbour Island in July79August31° · Sea 30° · 8.5 h
In August, Harbour Island is hot: daytime highs average 31 °C, and even at night it stays warm at around 26 °C. The sea averages 29.5 °C – almost as warm as a bath. The sun shines for around 8.5 hours a day. It is the rainy season: rain falls on about 17 days, totalling 105 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a good month for a holiday in Harbour Island.
Harbour Island in August76September31° · Sea 29° · 7.6 h
In September, Harbour Island is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.2 °C – almost as warm as a bath. The sun shines for around 7.6 hours a day. It is the rainy season: rain falls on about 17 days, totalling 148 mm. On about 22 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Harbour Island.
Harbour Island in September77October29° · Sea 28° · 7.5 h
In October, Harbour Island is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun shines for around 7.5 hours a day. It is the rainy season: rain falls on about 16 days, totalling 137 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, October is a good month for a holiday in Harbour Island.
Harbour Island in October86November27° · Sea 27° · 7.3 h
In November, Harbour Island is warm: daytime highs average 27 °C, and even at night it stays warm at around 22 °C. The sea averages 26.5 °C – lovely and warm for swimming. The sun shines for around 7.3 hours a day. Rain is frequent, with about 10 rainy days and 72 mm in total. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, November is an excellent month for a holiday in Harbour Island.
Harbour Island in November87December26° · Sea 25° · 6.9 h
In December, Harbour Island is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sea averages 25.2 °C – pleasant for swimming. The sun shines for around 6.9 hours a day. Rain falls on about 8 days, adding up to 47 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, December is an excellent month for a holiday in Harbour Island.
Harbour Island in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Harbour Island
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Warm 20–24°
- Hot 24° and more
- muggy month (15+ muggy days)
HotOctober: nights around 24°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 28 days (dew point 18 °C or more).
The coolest nights are in January (20°), the warmest in July (26°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) on about 271 days a year, mostly from April to December.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 86 | 25° | 20° | 24.3° | 7.0 h | 8 | 48 |
| FebruaryFeb | 94 | 25° | 20° | 23.9° | 8.0 h | 6 | 36 |
| MarchMar | 95 | 26° | 21° | 24.0° | 8.6 h | 6 | 40 |
| AprilApr | 96 | 27° | 22° | 24.7° | 9.3 h | 7 | 44 |
| MayMay | 92 | 29° | 23° | 26.0° | 9.1 h | 9 | 81 |
| JuneJun | 81 | 30° | 25° | 27.8° | 7.9 h | 15 | 101 |
| JulyJul | 84 | 31° | 26° | 28.9° | 8.9 h | 14 | 82 |
| AugustAug | 79 | 31° | 26° | 29.5° | 8.5 h | 17 | 105 |
| SeptemberSep | 76 | 31° | 25° | 29.2° | 7.6 h | 17 | 148 |
| OctoberOct | 77 | 29° | 24° | 28.2° | 7.5 h | 16 | 137 |
| NovemberNov | 86 | 27° | 22° | 26.5° | 7.3 h | 10 | 72 |
| DecemberDec | 87 | 26° | 21° | 25.2° | 6.9 h | 8 | 47 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
25.50° N, 76.64° W · 18 m · America/Nassau
Sea temperature
Sea temperature in Harbour Island
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 27.7 – 28.8 °C
Swimming season: all year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Harbour Island ranges from 23.9 °C in February to 29.5 °C in August. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea temperature varies from year to year: in August, eight out of ten years were between 29.0 and 30.0 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 24.3° | 23.6° | 25.1° | pleasant |
| FebruaryFeb | 23.9° | 23.2° | 24.6° | pleasant |
| MarchMar | 24.0° | 23.1° | 24.9° | pleasant |
| AprilApr | 24.7° | 24.1° | 25.6° | pleasant |
| MayMay | 26.0° | 25.3° | 26.6° | warm |
| JuneJun | 27.8° | 27.2° | 28.5° | warm |
| JulyJul | 28.9° | 28.3° | 29.6° | warm |
| AugustAug | 29.5° | 29.0° | 30.0° | very warm |
| SeptemberSep | 29.2° | 28.4° | 29.8° | very warm |
| OctoberOct | 28.2° | 27.7° | 28.8° | warm |
| NovemberNov | 26.5° | 25.7° | 27.2° | warm |
| DecemberDec | 25.2° | 24.4° | 25.9° | pleasant |
Sunshine
Sunshine hours in Harbour Island
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.5 of 11.6 hours of daylight in Harbour Island, 65 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Harbour Island: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Harbour Island has about 16 rainy days with 137 mm of rain in total.
UV index
UV index in Harbour Island
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 8 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in June (UV 12).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 20 min
- Light brown skin
- about 30 min
- Olive skin
- about 40 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Harbour Island
How breezy and how cloudy Harbour Island is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Harbour Island typically peaks at 29 km/h during the day: Beaufort 5, fresh breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 55 % of the sky over Harbour Island: variable cloud, with about 7.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity
Heat and humidity in Harbour Island
How often the day gets hot in Harbour Island (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Harbour Island has about 5 hot days, with an average daytime high of 29 °C: often muggy. The air feels warmer than the thermometer says: light, airy clothes and slow days help.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Harbour Island
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Harbour Island in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Harbour Island has its best school-holiday weather during the Easter holidays (score 96) and its weakest during October half-term (score 77).
- 96
Easter holidays
Mar – Apr
ExcellentBest holidays
- 27 °C by day
- Sea 24 °C
- 9.1 h of sun a day
- 6 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 90
May half-term
May – Jun
Excellent
- 29 °C by day
- Sea 26 °C
- 8.9 h of sun a day
- 10 rainy days a month
Good for: Beach & swimming
- 81
Summer holidays
Jul – Aug
Excellent
- 31 °C by day
- Sea 29 °C
- 8.6 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Storm season
- 77
October half-term
Oct
Good
- 29 °C by day
- Sea 28 °C
- 7.5 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Storm season
- 87
Christmas holidays
Dec – Jan
Excellent
- 25 °C by day
- Sea 25 °C
- 7.0 h of sun a day
- 8 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 8 h 50 min
- Distance
- 6,880 km
- Time zone
- UTC−4
- Jet lag
- About 3 days (5 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Bahamas
- Currency
- Bahamian Dollar (BSD)
- Language
- English
- Sockets
- Type A, B · 120 V
- Traffic
- Drives on the left
- Dialling code
- +1 242
UK plugs need a travel adapter
Only 120 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Storm season
Harbour Island lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.
Compare & alternatives
Compare with another place
Harbour Island compared
Put Harbour Island side by side with another destination.
Harbour Island vs Nassau
In October the holiday weather in Harbour Island and Nassau is about equally good (score 77 vs 78). During the day Nassau is 2 °C warmer than Harbour Island. The sea is about equally warm.
| in October | Harbour Island | Nassau |
|---|---|---|
| Holiday weather score | 77 | 78 |
| Daytime high | 29° | 31° |
| Sea | 28° | 28° |
| Sunshine | 8 h | 8 h |
| Rainy days | 16 | 16 |
| Best time | Nov – May | Nov – May |
Through the year
Best places in the country
Bahamas in October: the best places
In October, Harbour Island ranks 4 of 4 destinations in this country.
- Freeport29°28°82
- 2Marsh Harbour29°28°79
- 3Nassau31°28°78
- 4Harbour IslandThis page29°28°77
Places nearby
Near Harbour Island
Other destinations close by.
Places with a similar climate
Places with a climate like Harbour Island
Destinations whose weather through the year is closest to Harbour Island's – good alternatives.
Frequently asked questions about Harbour Island
When is the best time to visit Harbour Island?
The best time to visit Harbour Island is from November to May. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Harbour Island?
The sea temperature in Harbour Island ranges from 23.9 °C in February to 29.5 °C in August. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Harbour Island in October?
Yes. In October the sea averages 28.2 °C – lovely and warm for swimming.
What is the warmest month in Harbour Island?
August is the warmest month, with average highs of 31 °C and nights around 26 °C. January is the coolest month at 25 °C.
When does it rain most in Harbour Island?
The rainy season is from June to October; the wettest month is September with 148 mm. The driest month is February with 36 mm.
How many hours of sunshine does Harbour Island get?
Harbour Island gets around 2,940 hours of sunshine a year. The sunniest month is April with 9.3 hours a day; in December there are 6.9 hours a day.
What time zone is Harbour Island in?
Harbour Island is on UTC−5 in January and UTC−4 in July.
How long is the flight from London to Harbour Island?
A nonstop flight from London to Harbour Island takes about 8 h 50 min, for a straight-line distance of about 6,880 km.
When is hurricane season in Harbour Island?
Harbour Island lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for Harbour Island?
Harbour Island has its best school-holiday weather during the Easter holidays (score 96) and its weakest during October half-term (score 77). Holiday ratings (0–100): Easter holidays 96, May half-term 90, summer holidays 81, October half-term 77, Christmas holidays 87.