Climate Overview
The climate in Santa Clara de Guapiles Airport is warm and mild. The average annual temperature is 24°C and approximately 2949mm of precipitation falls per year. Santa Clara de Guapiles Airport receives a notable amount of rainfall throughout the year, including during its driest month. Santa Clara de Guapiles Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, May, June. The coldest months are January, February, March, when temperatures can drop to 19°C.
Temperature
Santa Clara de Guapiles Airport has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is September, when average highs reach 29°C and the mean temperature sits around 24°C. January 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 7°C between highs and lows.
Precipitation
Santa Clara de Guapiles Airport is a very wet location, receiving approximately 2949mm of precipitation annually, which averages out to around 246mm per month. The wettest month is November, averaging 447mm of rainfall. October and June also tend to see above-average precipitation. The driest month is March, with just 81mm. That's 365mm less than November, 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
Santa Clara de Guapiles Airport is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Santa Clara de Guapiles Airport, which began on March 20, 2026. Santa Clara de Guapiles Airport 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 September at around 29°C, while the coldest stretch bottoms out in January near 19°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 20 to 29°C. Rainfall is heavy, totalling around 473mm across the season with a monthly average of 158mm. Winds are generally light, averaging 9km/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 794mm across the season with a monthly average of 265mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 21 to 29°C. Rainfall is heavy, totalling around 1057mm across the season with a monthly average of 352mm. Winds are generally light, averaging 7km/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 625mm across the season with a monthly average of 208mm. Winds are generally light, averaging 9km/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 Santa Clara de Guapiles Airport is during March and April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 90mm per month. By contrast, September can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 19°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Santa Clara de Guapiles Airport 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.
