Climate Overview
The climate in Santa Rosa del Sur is warm and mild. The average annual temperature is 25°C and approximately 2787mm of precipitation falls per year. Santa Rosa del Sur receives a notable amount of rainfall throughout the year, including during its driest month. Santa Rosa del Sur sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Santa Rosa del Sur has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is February, when average highs reach 31°C and the mean temperature sits around 26°C. October 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
Santa Rosa del Sur is a very wet location, receiving approximately 2787mm of precipitation annually, which averages out to around 232mm per month. The wettest month is May, averaging 360mm of rainfall. October and April also tend to see above-average precipitation. The driest month is February, with just 77mm. That's 283mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Santa Rosa del Sur is relatively calm, with an average annual wind speed of 1km/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 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
83 days until Autumn
It is currently summer in Santa Rosa del Sur, which began on June 21, 2026. Santa Rosa del Sur sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 31°C, while the coldest stretch bottoms out in October near 21°C. Autumn is next, beginning on September 23, 2026 — 83 days from now.
Spring
Temperatures range from 22 to 31°C. Rainfall is heavy, totalling around 883mm across the season with a monthly average of 294mm. Winds are generally light, averaging 1km/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 772mm across the season with a monthly average of 257mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 841mm across the season with a monthly average of 280mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 21 to 31°C. Precipitation is moderate at around 291mm for the season, averaging 97mm per month. Winds are generally light, averaging 1km/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 Santa Rosa del Sur 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.
