Climate Overview
The climate in La Fortuna is warm and mild. The average annual temperature is 24°C and approximately 1992mm of precipitation falls per year. October is the wettest month, receiving around 375mm of rainfall. La Fortuna is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, September. The coldest months are February, January, March, when temperatures can drop to 21°C.
Temperature
La Fortuna has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is April, when average highs reach 31°C and the mean temperature sits around 26°C. February is the coolest month, with minimum temperatures around 21°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
La Fortuna is a fairly wet location, receiving approximately 1992mm of precipitation annually, which averages out to around 166mm per month. The wettest month is October, averaging 375mm of rainfall. June and September also tend to see above-average precipitation. The driest month is March, with just 11mm. That's 364mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
La Fortuna is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 20km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 11km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 18km/h in winter, 15km/h in spring, 12km/h in summer, 10km/h in autumn.
Seasons
89 days until Summer
It is currently spring in La Fortuna, which began on March 20, 2026. La Fortuna is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 31°C, while the coldest stretch bottoms out in February near 21°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 21 to 31°C. Precipitation is moderate at around 297mm for the season, averaging 99mm per month. Winds are generally light, averaging 15km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 704mm across the season with a monthly average of 235mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 21 to 29°C. Rainfall is heavy, totalling around 885mm across the season with a monthly average of 295mm. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 21 to 28°C. Rainfall is relatively light, with around 106mm over the season and a monthly average of 35mm. Winds are moderate at around 18km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit La Fortuna is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 29mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 31°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for La Fortuna based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
