Climate Overview
The climate in Santa Rosa del Sur is hot. The average annual temperature is 27°C and approximately 1923mm 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 sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is February, when average highs reach 34°C and the mean temperature sits around 29°C. October is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Santa Rosa del Sur is a fairly wet location, receiving approximately 1923mm of precipitation annually, which averages out to around 160mm per month. The wettest month is May, averaging 283mm of rainfall. April and November also tend to see above-average precipitation. The driest month is January, with just 40mm. That's 243mm less than May, 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 Rosa del Sur 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 August, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
88 days until Summer
It is currently spring in Santa Rosa del Sur, which began on March 20, 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 34°C, while the coldest stretch bottoms out in October near 23°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 24 to 33°C. Rainfall is heavy, totalling around 669mm across the season with a monthly average of 223mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 452mm across the season with a monthly average of 151mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 650mm across the season with a monthly average of 217mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 34°C. Precipitation is moderate at around 153mm for the season, averaging 51mm per month. Winds are generally light, averaging 8km/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.
