Climate Insights for Zacatecoluca

The climate in Zacatecoluca is hot. The average annual temperature is 27°C and approximately 2086mm of precipitation falls per year. June is the wettest month, receiving around 399mm of rainfall. Zacatecoluca is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: March, February, April. The coldest months are January, February, December, when temperatures can drop to 21°C.

Zacatecoluca sees moderate temperature variation throughout the year, ranging from 21°C to 35°C. The warmest month is March, when average highs reach 35°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 21°C and an average of 26°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.

Zacatecoluca is a very wet location, receiving approximately 2086mm of precipitation annually, which averages out to around 174mm per month. The wettest month is June, averaging 399mm of rainfall. September and October also tend to see above-average precipitation. The driest month is January, with just 1mm. That's 398mm less than June, 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.

Zacatecoluca is relatively calm, with an average annual wind speed of 10km/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 12km/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 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 11km/h in winter, 11km/h in spring, 8km/h in summer, 8km/h in autumn.

It is currently spring in Zacatecoluca, which began on March 20, 2026. Zacatecoluca 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 March at around 35°C, while the coldest stretch bottoms out in January near 21°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Zacatecoluca 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.