Climate Insights for Guápiles

The climate in Guápiles is warm and mild. The average annual temperature is 24°C and approximately 2952mm of precipitation falls per year. Guápiles receives a notable amount of rainfall throughout the year, including during its driest month. Guápiles is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, May, August. The coldest months are January, February, March, when temperatures can drop to 19°C.

Guápiles 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.

Guápiles is a very wet location, receiving approximately 2952mm of precipitation annually, which averages out to around 246mm per month. The wettest month is November, averaging 457mm of rainfall. October and June also tend to see above-average precipitation. The driest month is March, with just 79mm. That's 379mm 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.

Guápiles is relatively calm, with an average annual wind speed of 5km/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 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently autumn in Guápiles, which began on September 23, 2026. Guápiles 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. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Guápiles is during March, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 79mm 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.

The table below shows monthly climate averages for Guápiles 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.