Climate Overview
The climate in La Fortuna is warm and mild. The average annual temperature is 23°C and approximately 2731mm of precipitation falls per year. La Fortuna receives a notable amount of rainfall throughout the year, including during its driest month. La Fortuna is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, September. The coldest months are February, January, March, when temperatures can drop to 19°C.
Temperature
La Fortuna has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is May, when average highs reach 28°C and the mean temperature sits around 24°C. February is the coolest month, with minimum temperatures around 19°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
La Fortuna is a very wet location, receiving approximately 2731mm of precipitation annually, which averages out to around 228mm per month. The wettest month is October, averaging 374mm of rainfall. November and June also tend to see above-average precipitation. The driest month is March, with just 35mm. That's 339mm 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 13km/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 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 10km/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 17km/h in winter, 15km/h in spring, 11km/h in summer, 9km/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 May at around 28°C, while the coldest stretch bottoms out in February near 19°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 20 to 28°C. Rainfall is heavy, totalling around 372mm across the season with a monthly average of 124mm. Winds are generally light, averaging 15km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 891mm across the season with a monthly average of 297mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 1001mm across the season with a monthly average of 334mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 19 to 26°C. Rainfall is heavy, totalling around 466mm across the season with a monthly average of 155mm. Winds are moderate at around 17km/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 February, March and April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 61mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 28°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
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.
