Climate Overview
The climate in Jacó is hot. The average annual temperature is 26°C and approximately 4982mm of precipitation falls per year. Jacó receives a notable amount of rainfall throughout the year, including during its driest month. Jacó sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Jacó has relatively stable temperatures year-round, staying within a 4°C range. The warmest month is March, when average highs reach 28°C and the mean temperature sits around 27°C. November is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Jacó is a very wet location, receiving approximately 4982mm of precipitation annually, which averages out to around 415mm per month. The wettest month is October, averaging 778mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 35mm. That's 743mm 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
Jacó 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 October, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Jacó, which began on March 20, 2026. Jacó sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 28°C, while the coldest stretch bottoms out in November near 24°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 781mm across the season with a monthly average of 260mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 27°C. Rainfall is heavy, totalling around 1904mm across the season with a monthly average of 635mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 27°C. Rainfall is heavy, totalling around 1958mm across the season with a monthly average of 653mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 339mm across the season with a monthly average of 113mm. Winds are generally light, averaging 12km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Jacó 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.
