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Islita Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Islita.
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Climate overview of Islita
With consistently stable weather, Islita, Guanacaste, Costa Rica, sees little seasonal temperature change. Daytime highs average 30°C (86°F), ranging from 32°C (90°F) in March to 29°C (84°F) in October.
Rainfall is high, totalling around 2668 mm (105 in) per year. October is the wettest month and February the driest. The city also experiences distinct dry (January to March) and wet (May to November) seasons. The most sunshine falls in March, with an average of 9.4 hours of daily sunshine.
Islita Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Islita - and find the best time to visit.
Monthly Temperature in Islita
The climate in Islita remains fairly constant, offering very warm temperatures throughout the year. Average maximum daytime temperatures range from a very warm 32°C (90°F) in March, the warmest time of the year, to a comfortable 29°C (84°F) during cooler months like October.
At night, you can expect temperatures ranging from 25°C (77°F) in March to around 24°C (75°F) during October.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Islita
Islita is known for its substantial rainfall, with annual precipitation reaching 2668 mm (105 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 447 mm (18 in) of precipitation, recorded across 21 rainy days. In contrast, the driest month February brings less rainfall, with 13 mm (0.5 in) over 6 rainy days. For more details, please visit our Islita Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Islita
Seasonal changes in sunshine hours are quite dramatic in Islita. While March receives considerable daily sunshine with up to 9.4 hours, June marks the darkest time of the year, where sunshine is scarce with only 5.2 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Puntarenas, Costa Rica (63 KM, 39 Miles).
Daily hours of sunshine
Data from: Puntarenas, Costa Rica (63 KM, 39 Miles).
Best Time to Visit Islita
Conditions in Islita are generally most comfortable in January, February and March. They are typically least comfortable in May, June, July, August, September and October.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very good
Feb
very good
Mar
very good
Apr
good
May
very wet
Jun
very wet
Jul
very wet
Aug
very wet
Sep
very wet
Oct
very wet
Nov
mixed
Dec
good
- Best overall: January, February and March
- Warmest weather: January, February, March and April
- Most sunshine: March
- Fewest rainy days: February and March
- Seasonal pattern: Distinct dry (January to March) and wet (May to November) seasons
Frequently asked questions about the climate in Islita
What is the best time to visit Islita?
January, February and March typically offer the most optimal weather in Islita. In contrast, May, June, July, August, September and October tend to have less optimal conditions. Islita has distinct dry (January to March) and wet (May to November) seasons.
What temperatures can I expect in Islita?
Daytime highs range from 29°C (84°F) in October to 32°C (90°F) in March. Nighttime lows range from 24°C (75°F) to 25°C (77°F). Temperatures stay relatively stable year-round.
How much rain does Islita get?
Annual rainfall is around 2668 mm (105 in). October is the wettest month with 447 mm (18 in), while February is the driest with 13 mm (0.5 in).
How sunny is Islita?
Islita receives around 2,489 hours of sunshine per year. March is the sunniest month with 282 hours, while June is the cloudiest with just 156 hours. Overall, Islita enjoys abundant sunshine.
Islita 3-Day Forecast
Islita on the map
Islita is highlighted - select any city to see its climate.
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Where to go in September - average daytime high across popular destinations.
Tamarindo
30°C (86°F) Cahuita29°C (84°F) Santa Teresa29°C (84°F) Herradura28°C (82°F) Puerto Viejo de Talamanca29°C (84°F) Fortuna29°C (84°F) Jacó28°C (82°F) San José24°C (75°F) Bucket list
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