AI-generatedHonolulu, Hawaii at a glance
- Best time
- All year
- Warmest month
- Sep · 28°
- Warmest sea
- Sep · 26.9°
- Sunshine a year
- 3,070 h
- Rain a year
- 407 mm
- Climate
- Tropical
- Time zone
- UTC−10
- Elevation
- 5 m
Climate in Honolulu, Hawaii
Honolulu, Hawaii has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. September is the warmest month with average highs of 28 °C, while February is the coolest at 24 °C. With around 3,070 hours of sunshine a year, Honolulu, Hawaii is very sunny; June is the sunniest month with 9.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Excellent
Best time to visit: January – December
October is in the hurricane season
A typical day in October
- Morning, 08:00: about 25°
- Midday, 13:00: about 27°
- Afternoon, 16:00: about 27°
- Evening, 20:00: about 26°
- Night, 23:00: about 25°
06:2618:08
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
What is the weather like in Honolulu, Hawaii in October?
In October, Honolulu, Hawaii is hot: daytime highs average 27 °C, and even at night it stays warm at around 24 °C. The sea averages 26.8 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 30 mm. The air is often humid and muggy. All in all, October is an excellent month for a holiday in Honolulu, Hawaii.
More details for October
- Daylight
- 11 h 41 min06:26 – 18:08
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or more
- Wind
- 20 km/haverage daily peak
- Cloud cover
- 46 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−10Pacific/Honolulu
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %87 %
- Few rainy daysweight 20 %75 %
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
Sea temperature in Honolulu, Hawaii
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 25.7 – 27.6 °C
Swimming season: All year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Honolulu, Hawaii ranges from 24.2 °C in February to 26.9 °C in September. At 20 °C and more, the sea is warm enough for swimming all year round.
In January the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in September, eight out of ten years were between 26.1 and 27.7 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 24.6° | 23.8° | 25.4° | pleasant |
| FebruaryFeb | 24.2° | 23.6° | 24.9° | pleasant |
| MarchMar | 24.2° | 23.6° | 24.7° | pleasant |
| AprilApr | 24.5° | 23.7° | 25.2° | pleasant |
| MayMay | 25.1° | 24.4° | 25.7° | pleasant |
| JuneJun | 25.7° | 25.1° | 26.2° | pleasant |
| JulyJul | 26.1° | 25.3° | 26.8° | warm |
| AugustAug | 26.6° | 25.8° | 27.2° | warm |
| SeptemberSep | 26.9° | 26.1° | 27.7° | warm |
| OctoberOct | 26.8° | 25.7° | 27.6° | warm |
| NovemberNov | 26.1° | 25.3° | 26.7° | warm |
| DecemberDec | 25.1° | 24.3° | 25.9° | pleasant |
Sunshine hours in Honolulu, Hawaii
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 8.2 of 11.7 hours of daylight in Honolulu, Hawaii, 70 % of the day.
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.
UV index in Honolulu, Hawaii
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 9 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in July (UV 12).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 20 min
- Light brown skin
- about 25 min
- Olive skin
- about 35 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Honolulu, Hawaii: 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, Honolulu, Hawaii has about 8 rainy days with 30 mm of rain in total.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
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° | 22° | 24.6° | 7.4 h | 8 | 44 |
| FebruaryFeb | 86 | 24° | 21° | 24.2° | 7.5 h | 7 | 36 |
| MarchMar | 84 | 25° | 22° | 24.2° | 7.6 h | 10 | 53 |
| AprilApr | 90 | 25° | 22° | 24.5° | 8.5 h | 10 | 31 |
| MayMay | 93 | 26° | 23° | 25.1° | 9.4 h | 9 | 32 |
| JuneJun | 95 | 27° | 24° | 25.7° | 9.6 h | 7 | 23 |
| JulyJul | 95 | 27° | 24° | 26.1° | 9.6 h | 8 | 21 |
| AugustAug | 96 | 28° | 25° | 26.6° | 9.4 h | 7 | 23 |
| SeptemberSep | 96 | 28° | 25° | 26.9° | 8.9 h | 6 | 18 |
| OctoberOct | 92 | 27° | 24° | 26.8° | 8.2 h | 8 | 30 |
| NovemberNov | 89 | 26° | 24° | 26.1° | 7.4 h | 8 | 44 |
| DecemberDec | 89 | 25° | 22° | 25.1° | 7.2 h | 8 | 51 |
Climate averages 1996–2025, 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)
21.31° N, 157.86° W · 5 m · Pacific/Honolulu
Best time to visit Honolulu, Hawaii
The best time to visit Honolulu, Hawaii is all year round. For a beach holiday with the sea above 21 °C, go all year round. For sightseeing, day trips and hiking, the weather is pleasant all year round. The wettest month is March with 53 mm of precipitation.
Honolulu, Hawaii through the seasons
How the weather changes over the seasons, with averages for each.
Honolulu, Hawaii in spring
Mar – May
Excellent
- 25–26 °C by day
- Sea 25 °C
- 9 h of sun a day
- 28 rainy days in all
Honolulu, Hawaii in summer
Jun – Aug
Excellent
- 27–28 °C by day
- Sea 26 °C
- 10 h of sun a day
- 22 rainy days in all
Honolulu, Hawaii in autumn
Sep – Nov
Excellent
- 26–28 °C by day
- Sea 27 °C
- 8 h of sun a day
- 22 rainy days in all
Honolulu, Hawaii in winter
Dec – Feb
Excellent
- 24–25 °C by day
- Sea 25 °C
- 7 h of sun a day
- 23 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Honolulu, Hawaii for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Which month for what?
Beach & swimming
All year
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
All year
15–28 °C and not too much rain
Honolulu, Hawaii month by month
The typical weather for every month at a glance.
86January25° · Sea 25° · 7 h
In January, Honolulu, Hawaii is warm: daytime highs average 25 °C, and even at night it stays warm at around 22 °C. The sea averages 24.6 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 44 mm. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in January86February24° · Sea 24° · 8 h
In February, Honolulu, Hawaii is warm: daytime highs average 24 °C, and even at night it stays warm at around 21 °C. The sea averages 24.2 °C – pleasant for swimming. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 36 mm. All in all, February is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in February84March25° · Sea 24° · 8 h
In March, Honolulu, Hawaii is warm: daytime highs average 25 °C, and even at night it stays warm at around 22 °C. The sea averages 24.2 °C – pleasant for swimming. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 53 mm in total. All in all, March is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in March90April25° · Sea 25° · 9 h
In April, Honolulu, Hawaii is warm: daytime highs average 25 °C, and even at night it stays warm at around 22 °C. The sea averages 24.5 °C – pleasant for swimming. The sun shines for around 9 hours a day. Rain is frequent, with about 10 rainy days and 31 mm in total. The air is often humid and muggy. All in all, April is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in April93May26° · Sea 25° · 9 h
In May, Honolulu, Hawaii is warm: daytime highs average 26 °C, and even at night it stays warm at around 23 °C. The sea averages 25.1 °C – pleasant for swimming. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 9 days, adding up to 32 mm. The air is often humid and muggy. All in all, May is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in May95June27° · Sea 26° · 10 h
In June, Honolulu, Hawaii is warm: daytime highs average 27 °C, and even at night it stays warm at around 24 °C. The sea averages 25.7 °C – pleasant for swimming. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 23 mm. The air is often humid and muggy. All in all, June is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in June95July27° · Sea 26° · 10 h
In July, Honolulu, Hawaii is hot: daytime highs average 27 °C, and even at night it stays warm at around 24 °C. The sea averages 26.1 °C – lovely and warm for swimming. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 21 mm. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in July96August28° · Sea 27° · 9 h
In August, Honolulu, Hawaii is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 26.6 °C – lovely and warm for swimming. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 23 mm. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in August96September28° · Sea 27° · 9 h
In September, Honolulu, Hawaii is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 26.9 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 18 mm. The air is often humid and muggy. All in all, September is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in September92October27° · Sea 27° · 8 h
In October, Honolulu, Hawaii is hot: daytime highs average 27 °C, and even at night it stays warm at around 24 °C. The sea averages 26.8 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 30 mm. The air is often humid and muggy. All in all, October is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in October89November26° · Sea 26° · 7 h
In November, Honolulu, Hawaii is warm: daytime highs average 26 °C, and even at night it stays warm at around 24 °C. The sea averages 26.1 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 44 mm. The air is often humid and muggy. All in all, November is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in November89December25° · Sea 25° · 7 h
In December, Honolulu, Hawaii is warm: daytime highs average 25 °C, and even at night it stays warm at around 22 °C. The sea averages 25.1 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 51 mm. The air is often humid and muggy. All in all, December is an excellent month for a holiday in Honolulu, Hawaii.
Honolulu, Hawaii in DecemberHonolulu, Hawaii compared
Put Honolulu, Hawaii side by side with another destination.
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Honolulu vs. Kihei
In October the holiday weather in Honolulu and Kihei is about equally good (score 92 vs. 95). During the day Kihei is 2 °C warmer than Honolulu. The sea is about equally warm.
| in October | Honolulu | Kihei |
|---|---|---|
| Holiday score | 92 | 95 |
| Daytime high | 27° | 29° |
| Sea | 27° | 27° |
| Sunshine | 8 h | 8 h |
| Rainy days | 8 | 4 |
| Best time | All year | All year |
Through the year
USA in October: the best places
In October, Honolulu, Hawaii ranks 5 of 10 destinations in this country.
- Las Vegas26°99
- 2Los Angeles26°19°98
- 3Kihei29°27°95
- 4San Francisco21°14°95
- 5HonoluluThis page27°27°92
- 6Key West27°28°81
- 7Miami Beach28°28°77
- 8New York18°18°77
Planning a trip to Honolulu, Hawaii
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Getting there
Flying from
- Nonstop flight
- about 14 h 30 min
- Distance
- 11,630 km
- Time zone
- UTC−10
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Storm season
Honolulu, Hawaii lies in an area that Central Pacific hurricanes can reach. The hurricane season runs from June to November, with most storms from August to September. 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: Season
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM); not a forecast.
Frequently asked questions about Honolulu, Hawaii
When is the best time to visit Honolulu, Hawaii?
The best time to visit Honolulu, Hawaii is all year round. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Honolulu, Hawaii?
The sea temperature in Honolulu, Hawaii ranges from 24.2 °C in February to 26.9 °C in September. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Honolulu, Hawaii in October?
Yes. In October the sea averages 26.8 °C – lovely and warm for swimming.
What is the warmest month in Honolulu, Hawaii?
September is the warmest month, with average highs of 28 °C and nights around 25 °C. February is the coolest month at 24 °C.
When does it rain most in Honolulu, Hawaii?
The wettest month is March with 53 mm of precipitation. The driest month is September with 18 mm.
How many hours of sunshine does Honolulu, Hawaii get?
Honolulu, Hawaii gets around 3,070 hours of sunshine a year. The sunniest month is June with 9.6 hours a day; in December there are 7.2 hours a day.
What time zone is Honolulu, Hawaii in?
Honolulu, Hawaii uses the time zone Pacific/Honolulu, at UTC−10 all year.
How long is the flight from London to Honolulu, Hawaii?
A nonstop flight from London to Honolulu, Hawaii takes about 14 h 30 min, for a straight-line distance of about 11,630 km. Most routes need a change of planes, which adds time.
When is hurricane season in Honolulu, Hawaii?
Honolulu, Hawaii lies in an area that Central Pacific hurricanes can reach. The hurricane season runs from June to November, with most storms from August to September. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Near Honolulu, Hawaii
Other destinations close by.
Places with a climate like Honolulu, Hawaii
Destinations whose weather through the year is closest to Honolulu, Hawaii's – good alternatives.