The average temperature for the week of 2 June 2025 - 8 June 2025 was 29 °C (84 °F) during the day and 26 °C (79 °F) during the night. These temperatures are slightly below the long-time average for Jaco, being 32 °C (90 °F) for daily temperatures and 22 °C (72 °F) for night temperatures. On average, the temperatures during various times of day (in local time) were recorded as: 7am 27 °C (81 °F), 10am 28 °C (82 °F), 1pm 29 °C (84 °F), 4pm 28 °C (82 °F), 7pm 27 °C (81 °F), 10pm 27 °C (81 °F).

There were 4 days with light rain and 3 days with moderate rain during this week. The total precipitation for the week in Jaco was 51 mm (2.01 in), which is roughly same as the area's average of 63 mm (2.48 in). During the daytime (from dawn to dusk), there was 80 % cloud coverage on average.

An average wind speed of 2.4 m/s was recorded. The air pressure varied between 1007 hpa and 1013 hpa. On average, the air humidity in Jaco was 79 %.

On average, there were 1 hour clear skies, 2 hours partially overcast skies, 9 hours overcast skies and 2 hours rainy weather during the daytime (from dawn to dusk). Average time of sunrise was 05:17, average time of sunset was 17:57.

Weather overview

Jacó (Costa Rica) is a place with a tropical climate. The day temperatures range from 31 °C (87 °F) in November to 34 °C (94 °F) in March. Temperatures during the night go from 21 °C (69 °F) in December to 23 °C (73 °F) in April. The least rainy month in Jacó is February with its 2 days of rain, the rainiest month is September, when it rains 19 days. The highest sea temperatures in Jacó are in April with 29 °C (85 °F) and the lowest in November with 28 °C (82 °F).

January weather

The day temperature rises similarly to the previous month, with its value being 33 °C (91 °F) in Jacó. The tourist season is taking place, and the dry season continues as well. The descent of the number of rainy days can be observed, its value is 3 days, while the rainfall amount is on its minimum. The number of sun hours (without clouds) continues to rise, with its value being 7 hours.

February weather

The tourist season is close to its peak in Jacó, and the ongoing dry season is noticeable too in February. The minimum of the number of rainy days is observable, its value is 2 days. The day temperature rises similarly to the previous month, with its value of 33 °C (92 °F). The number of sun hours (without clouds) rises similarly to the previous month, with its value being 8 hours. The maximum of the wind speed is observable, with its value of 5.

March weather

The tourist season is taking place in Jacó, and the dry season is taking place as well. The beginning of the rise of the rainfall amount could be noticed in March. The night temperature starts to rise, with its value being 22 °C (71 °F), while the day temperature reaches its maximum, with its value being 34 °C (94 °F). The maximum of the number of sun hours (without clouds) is observable in this month.

April weather

The tourist season is taking place in Jacó. The sea temperature reaches its maximum, the value of this measure is 29 °C (85 °F), and the maximum of the night temperature is observable too in April. The rise of the rainfall amount can be observed, with its value being 90 mm (3.54 in), while the beginning of the rise of the number of rainy days could be noticed, with its value of 6 days. The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value of 8 hours.

May weather

There is pending tourist season in Jacó. The day temperature descent's start could be observed, with its value of 33 °C (91 °F). The rainfall amount rises similarly to the previous month, with its value of 293 mm (11.54 in), and the number of rainy days continues to rise too, with its value of 14 days. The number of sun hours (without clouds) continues to descent, its value is 6 hours.

June weather

The descent of the day temperature can be observed, its value is 32 °C (89 °F) in Jacó, while the night temperature descent's start could be observed, the value of this measure is 22 °C (71 °F). The rise of the number of rainy days can be observed, its value is 17 days, while the beginning of the descent of the rainfall amount could be noticed, with its value being 262 mm (10.32 in). The tourist season is close to its peak. The number of sun hours (without clouds) descents similarly to the previous month, its value is 6 hours.

July weather

The number of rainy days descent's start could be observed, its value is 14 days in Jacó, while the rainfall amount descents similarly to the previous month, with its value of 215 mm (8.48 in). The ongoing tourist season is noticeable.

August weather

The tourist season is close to its peak in August in Jacó. The beginning of the rise of the number of rainy days could be noticed, the value of this measure is 15 days, and the rainfall amount rise's start could be observed too, its value is 263 mm (10.35 in).

September weather

The wet season is about to start in Jacó. The day temperature starts to descent, with its value of 31 °C (88 °F). The maximum of the number of rainy days is observable, while the rainfall amount continues to rise, with its value being 353 mm (13.90 in). The number of sun hours (without clouds) starts to descent, its value is 5 hours. The wind speed is on its minimum, the value of this measure is 3.

October weather

The sea temperature descent's start could be observed, its value is 28 °C (82 °F) in Jacó. The wet season is close to its peak in October. The maximum of the rainfall amount is observable, with its value being 393 mm (15.47 in), while the number of rainy days descent's start could be observed, with its value being 19 days. The number of sun hours (without clouds) reaches its minimum, with its value of 5 hours. The maximum of the humidity can be noticed, its value is 88 %.

November weather

The tourist season is about to start this month in Jacó. The minimum of the day temperature can be noticed, its value is 31 °C (87 °F), and the minimum of the sea temperature can be noticed as well. The number of rainy days descents similarly to the previous month, with its value of 12 days, while the rainfall amount descent's start could be observed, the value of this measure is 214 mm (8.42 in). The beginning of the rise of the number of sun hours (without clouds) could be noticed, the value of this measure is 6 hours.

December weather

The tourist season is close to its peak in Jacó. The day temperature starts to rise, the value of this measure is 32 °C (89 °F), while the night temperature reaches its minimum, its value is 21 °C (69 °F). The rainfall amount continues to descent, the value of this measure is 55 mm (2.16 in), and the number of rainy days continues to descent too, with its value being 6 days. The number of sun hours (without clouds) continues to rise, the value of this measure is 6 hours.

What is the temperature in Jacó during the day in January?

The average daily temperature in January in Jacó is 33 °C (91 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.

What is the sea temperature in February in Jacó?

The temperature of the sea in Jacó in February is 29 °C (84 °F). This temperature is someone's dream come true, while for someone it may no longer be ideal for the purpose of refreshment.

How many days of precipitation on average can I expect in Jacó in March?

In Jacó in March, we can expect 2 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 0.5 days of the week, or in general - 8 % days.

Is April part of the wet season in Jacó?

No, there is no wet season in Jacó in April - you can expect 6 days of rain during the month.

How humid is Jacó in May?

In May in Jacó, expect humidity around 83 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.

How windy is Jacó in June?

An average wind scale that can be expected in Jacó in June is 3. It is rather a milder or unnoticeable wind, therefore it will not bother you during your holiday.

What is the night temperature in Jacó in July?

The average night temperature in July in Jacó is 22 °C (71 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.

How many hours of sun to expect in August in Jacó?

There is an average length of sunshine of 6 hours per day in Jacó in August.

Is October part of the dry season in Jacó?

No, October is not a dry month in Jacó, expect rain approximately 19 days in a month.

Is November a good month to visit Jacó?

In November in Jacó, there are ideal conditions for a vacation. The temperature during the day will be nice 31 °C (87 °F). The temperature of the sea will be perfect at 28 °C (82 °F). At night, temperatures hover around a pleasant 21 °C (70 °F).

Is it hot in December in Jacó?

In Jacó in December, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.