AI-generatedJacó at a glance
- Best time
- Nov – Apr
- Warmest month
- Mar · 32°
- Warmest sea
- Mar · 29.4°
- Sunshine a year
- 1,890 h
- Rain a year
- 5,652 mm
- Climate
- Tropical
- Time zone
- UTC−6
- Elevation
- 10 m
Climate in Jacó
Jacó has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. March is the warmest month with average highs of 32 °C, while November is the coolest at 30 °C. With around 1,890 hours of sunshine a year, Jacó is moderately sunny; February is the sunniest month with 7.7 hours a day.
Holiday weather through the year
Best time to visit Jacó
The best time to visit Jacó is from November to April. The sea reaches 29.4 °C in March, but frequent rain gets in the way of a classic beach holiday. The rainy season is from May to October; the wettest month is August with 786 mm.
Jacó through the seasons
How the weather changes over the seasons, with averages for each.
Jacó in the dry season
Nov – Apr
Good
- 30–32 °C by day
- Sea 29 °C
- 6.5 h of sun a day
- 145 rainy days in all
Jacó in the rainy season
May – Oct
Good
- 30–31 °C by day
- Sea 29 °C
- 3.9 h of sun a day
- 184 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
May – Oct
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Jacó for you.
Your best months: November – January
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 – April
Where to go in OctoberSea temperature in October
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 26°
- Midday, 13:00: about 30°
- Afternoon, 16:00: about 29°
- Evening, 20:00: about 25°
- Night, 23:00: about 24°
05:2617:22
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 05:13–05:54 · evening 16:54–17:35
- Blue hour
- Morning 05:05–05:13 · evening 17:35–17:43
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 Jacó compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs stay at about 30° from start to end. The days get 0.2 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 30° | 30° |
| Night-time low | 22° | 22° |
| Sea | 28° | 28° |
| Daylight | 12.0 h | 11.8 h |
What is the weather like in Jacó in October?
In October, Jacó is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun is scarce, with only about 3.4 hours a day. It is the rainy season: rain falls on about 31 days, totalling 756 mm. On about 16 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Jacó.
More details for October
- Daylight
- 11 h 56 min05:26 – 17:22
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 9 km/haverage daily peakAll months
- Cloud cover
- 92 %on averageAll months
- Hot days
- 16 days30 °C or moreAll months
- Time zone
- UTC−6offset from UTC
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %7 %
- Few rainy daysweight 20 %0 %
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
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Compare two months in Jacó
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
January has the better holiday weather in Jacó: score 74 against 61. In January, days are 1 °C warmer than in October. The sea is 1 °C warmer in January. January has 8 fewer rainy days. The sun shines 4 hours longer a day in January.
| Month | October | January |
|---|---|---|
| Holiday weather score | 61 | 74better |
| Daytime high | 30° | 31° |
| Night-time low | 22° | 22° |
| Sea | 28.2° | 28.8° |
| Sunshine | 3.4 h | 7.3 hbetter |
| Rainy days | 31 | 23better |
| Rainfall | 756 mm | 136 mmbetter |
| Muggy days | 31 | 31 |
Based on the climate averages 1996–2025.
Jacó month by month
The typical weather for every month at a glance.
74January31° · Sea 29° · 7.3 h
In January, Jacó is hot: daytime highs average 31 °C, and even at night it stays warm at around 22 °C. The sea averages 28.8 °C – lovely and warm for swimming. The sun shines for around 7.3 hours a day. It rains often – on about 23 days, adding up to 136 mm. On about 22 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a good month for a holiday in Jacó.
Jacó in January74February32° · Sea 29° · 7.7 h
In February, Jacó is hot: daytime highs average 32 °C, and even at night it stays warm at around 22 °C. The sea averages 29.0 °C – almost as warm as a bath. The sun shines for around 7.7 hours a day. It rains often – on about 17 days, adding up to 78 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is a good month for a holiday in Jacó.
Jacó in February70March32° · Sea 29° · 7.7 h
In March, Jacó is hot: daytime highs average 32 °C, and even at night it stays warm at around 23 °C. The sea averages 29.4 °C – almost as warm as a bath. The sun shines for around 7.7 hours a day. It rains often – on about 20 days, adding up to 96 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, March is a good month for a holiday in Jacó.
Jacó in March67April32° · Sea 29° · 6.4 h
In April, Jacó is hot: daytime highs average 32 °C, and even at night it stays warm at around 23 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 6.4 hours of sunshine a day. It rains often – on about 27 days, adding up to 243 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Jacó.
Jacó in April64May31° · Sea 29° · 4.4 h
In May, Jacó is hot: daytime highs average 31 °C, and even at night it stays warm at around 23 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 4.4 hours of sunshine a day. It is the rainy season: rain falls on about 31 days, totalling 616 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a good month for a holiday in Jacó.
Jacó in May63June31° · Sea 29° · 4.0 h
In June, Jacó is hot: daytime highs average 31 °C, and even at night it stays warm at around 22 °C. The sea averages 29.0 °C – almost as warm as a bath. Expect around 4.0 hours of sunshine a day. It is the rainy season: rain falls on about 30 days, totalling 678 mm. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a good month for a holiday in Jacó.
Jacó in June63July31° · Sea 29° · 3.9 h
In July, Jacó is hot: daytime highs average 31 °C, and even at night it stays warm at around 22 °C. The sea averages 29.0 °C – almost as warm as a bath. The sun is scarce, with only about 3.9 hours a day. It is the rainy season: rain falls on about 31 days, totalling 731 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Jacó.
Jacó in July63August31° · Sea 29° · 3.9 h
In August, Jacó is hot: daytime highs average 31 °C, and even at night it stays warm at around 22 °C. The sea averages 29.0 °C – almost as warm as a bath. The sun is scarce, with only about 3.9 hours a day. It is the rainy season: rain falls on about 31 days, totalling 786 mm. On about 23 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 Jacó.
Jacó in August62September30° · Sea 29° · 3.7 h
In September, Jacó is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 28.8 °C – lovely and warm for swimming. The sun is scarce, with only about 3.7 hours a day. It is the rainy season: rain falls on about 30 days, totalling 675 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 Jacó.
Jacó in September61October30° · Sea 28° · 3.4 h
In October, Jacó is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 28.2 °C – lovely and warm for swimming. The sun is scarce, with only about 3.4 hours a day. It is the rainy season: rain falls on about 31 days, totalling 756 mm. On about 16 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Jacó.
Jacó in October63November30° · Sea 28° · 4.0 h
In November, Jacó is hot: daytime highs average 30 °C, and even at night it stays warm at around 21 °C. The sea averages 27.9 °C – lovely and warm for swimming. Expect around 4.0 hours of sunshine a day. It rains often – on about 30 days, adding up to 574 mm. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a good month for a holiday in Jacó.
Jacó in November69December30° · Sea 28° · 5.8 h
In December, Jacó is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 28.3 °C – lovely and warm for swimming. Expect around 5.8 hours of sunshine a day. It rains often – on about 28 days, adding up to 284 mm. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a good month for a holiday in Jacó.
Jacó 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 Jacó
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Warm 20–24°
- muggy month (15+ muggy days)
WarmOctober: nights around 22°. Tropical nights: a fan or air conditioning helps. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in November (21°), the warmest in March (23°). 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) all year, on about 365 days a year.
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 | 74 | 31° | 22° | 28.8° | 7.3 h | 23 | 136 |
| FebruaryFeb | 74 | 32° | 22° | 29.0° | 7.7 h | 17 | 78 |
| MarchMar | 70 | 32° | 23° | 29.4° | 7.7 h | 20 | 96 |
| AprilApr | 67 | 32° | 23° | 29.4° | 6.4 h | 27 | 243 |
| MayMay | 64 | 31° | 23° | 29.3° | 4.4 h | 31 | 616 |
| JuneJun | 63 | 31° | 22° | 29.0° | 4.0 h | 30 | 678 |
| JulyJul | 63 | 31° | 22° | 29.0° | 3.9 h | 31 | 731 |
| AugustAug | 63 | 31° | 22° | 29.0° | 3.9 h | 31 | 786 |
| SeptemberSep | 62 | 30° | 22° | 28.8° | 3.7 h | 30 | 675 |
| OctoberOct | 61 | 30° | 22° | 28.2° | 3.4 h | 31 | 756 |
| NovemberNov | 63 | 30° | 21° | 27.9° | 4.0 h | 30 | 574 |
| DecemberDec | 69 | 30° | 22° | 28.3° | 5.8 h | 28 | 284 |
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
9.61° N, 84.63° W · 10 m · America/Costa_Rica
Sea temperature
Sea temperature in Jacó
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 27.4 – 29.1 °C
Swimming season: all year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Jacó ranges from 27.9 °C in November to 29.4 °C in March. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea temperature varies from year to year: in March, eight out of ten years were between 28.9 and 29.9 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 28.8° | 27.8° | 29.5° | warm |
| FebruaryFeb | 29.0° | 28.3° | 29.7° | very warm |
| MarchMar | 29.4° | 28.9° | 29.9° | very warm |
| AprilApr | 29.4° | 29.0° | 30.0° | very warm |
| MayMay | 29.3° | 28.7° | 30.1° | very warm |
| JuneJun | 29.0° | 28.4° | 29.5° | very warm |
| JulyJul | 29.0° | 28.5° | 29.6° | very warm |
| AugustAug | 29.0° | 28.2° | 29.9° | very warm |
| SeptemberSep | 28.8° | 28.1° | 29.6° | warm |
| OctoberOct | 28.2° | 27.4° | 29.1° | warm |
| NovemberNov | 27.9° | 26.9° | 28.5° | warm |
| DecemberDec | 28.3° | 27.3° | 29.0° | warm |
Sunshine
Sunshine hours in Jacó
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 3.4 of 11.9 hours of daylight in Jacó, 29 % 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 Jacó: 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, Jacó has about 31 rainy days with 756 mm of rain in total.
UV index
UV index in Jacó
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 12 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in April (UV 13).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 15 min
- Light brown skin
- about 20 min
- Olive skin
- about 25 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 Jacó
How breezy and how cloudy Jacó 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 Jacó typically peaks at 9 km/h during the day: Beaufort 2, light breeze or less.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 92 % of the sky over Jacó: mostly overcast, with about 3.4 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 Jacó
How often the day gets hot in Jacó (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, Jacó has about 16 hot days, with an average daytime high of 30 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.
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 Jacó
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Jacó 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.
Jacó has its best school-holiday weather during the Christmas holidays (score 72) and its weakest during October half-term (score 61).
- 68
Easter holidays
Mar – Apr
Good
- 32 °C by day
- Sea 29 °C
- 6.8 h of sun a day
- 25 rainy days a month
- 64
May half-term
May – Jun
Good
- 31 °C by day
- Sea 29 °C
- 4.3 h of sun a day
- 31 rainy days a month
Keep in mind: Frequent rain
- 63
Summer holidays
Jul – Aug
Good
- 31 °C by day
- Sea 29 °C
- 3.9 h of sun a day
- 31 rainy days a month
Keep in mind: Frequent rain
- 61
October half-term
Oct
Good
- 30 °C by day
- Sea 28 °C
- 3.4 h of sun a day
- 31 rainy days a month
Keep in mind: Frequent rain
- 72
Christmas holidays
Dec – Jan
GoodBest holidays
- 31 °C by day
- Sea 29 °C
- 6.6 h of sun a day
- 25 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 11 h 5 min
- Distance
- 8,770 km
- Time zone
- UTC−6
- Jet lag
- About 5 days (7 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: Costa Rica
- Currency
- Costa Rican Colón (CRC)
- Language
- Spanish
- Sockets
- Type A, B · 120 V
- Traffic
- Drives on the right
- Dialling code
- +506
- Emergency number
- 911 · 112
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.
Compare & alternatives
Compare with another place
Jacó compared
Put Jacó side by side with another destination.
Jacó vs Puntarenas
In October the holiday weather in Jacó and Puntarenas is about equally good (score 61 vs 64). During the day Puntarenas is 1 °C warmer than Jacó. The sea is about equally warm. Puntarenas gets one more hour of sunshine a day.
| in October | Jacó | Puntarenas |
|---|---|---|
| Holiday weather score | 61 | 64 |
| Daytime high | 30° | 31° |
| Sea | 28° | 28° |
| Sunshine | 3 h | 4 h |
| Rainy days | 31 | 30 |
| Best time | Nov – Apr | Dec – Mar |
Through the year
Best places in the country
Costa Rica in October: the best places
In October, Jacó ranks 3 of 9 destinations in this country.
- Puntarenas31°28°64
- 2Tamarindo31°28°63
- 3JacóThis page30°28°61
- 4Limón33°29°56
- 5Cartago26°45
- 6San José29°40
- 7La Fortuna30°34
- 8Alajuela30°29
Places nearby
Near Jacó
Other destinations close by.
Places with a similar climate
Places with a climate like Jacó
Destinations whose weather through the year is closest to Jacó's – good alternatives.
Frequently asked questions about Jacó
When is the best time to visit Jacó?
The best time to visit Jacó is from November to April. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Jacó?
The sea temperature in Jacó ranges from 27.9 °C in November to 29.4 °C in March. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Jacó in October?
Yes. In October the sea averages 28.2 °C – lovely and warm for swimming.
What is the warmest month in Jacó?
March is the warmest month, with average highs of 32 °C and nights around 23 °C. November is the coolest month at 30 °C.
When does it rain most in Jacó?
The rainy season is from May to October; the wettest month is August with 786 mm. The driest month is February with 78 mm.
How many hours of sunshine does Jacó get?
Jacó gets around 1,890 hours of sunshine a year. The sunniest month is February with 7.7 hours a day; in October there are 3.4 hours a day.
What time zone is Jacó in?
Jacó is on UTC−6 all year.
How long is the flight from London to Jacó?
A nonstop flight from London to Jacó takes about 11 h 5 min, for a straight-line distance of about 8,770 km.
Which school holidays are best for Jacó?
Jacó has its best school-holiday weather during the Christmas holidays (score 72) and its weakest during October half-term (score 61). Holiday ratings (0–100): Easter holidays 68, May half-term 64, summer holidays 63, October half-term 61, Christmas holidays 72.