Climate Overview
The climate in San Juan Chamelco is warm and mild. The average annual temperature is 20°C and approximately 2959mm of precipitation falls per year. San Juan Chamelco receives a notable amount of rainfall throughout the year, including during its driest month. San Juan Chamelco is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, June. The coldest months are January, February, December, when temperatures can drop to 14°C.
Temperature
San Juan Chamelco sees moderate temperature variation throughout the year, ranging from 14°C to 28°C. The warmest month is May, when average highs reach 28°C and the mean temperature sits around 23°C. January is the coolest month, with minimum temperatures around 14°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
San Juan Chamelco is a very wet location, receiving approximately 2959mm of precipitation annually, which averages out to around 247mm per month. The wettest month is June, averaging 425mm of rainfall. September and October also tend to see above-average precipitation. The driest month is April, with just 105mm. That's 321mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
San Juan Chamelco 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 July, averaging 9km/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. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in San Juan Chamelco, which began on March 20, 2026. San Juan Chamelco 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 May at around 28°C, while the coldest stretch bottoms out in January near 14°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 16 to 28°C. Rainfall is heavy, totalling around 410mm across the season with a monthly average of 137mm. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 994mm across the season with a monthly average of 331mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 27°C. Rainfall is heavy, totalling around 1109mm across the season with a monthly average of 370mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 14 to 23°C. Rainfall is heavy, totalling around 446mm across the season with a monthly average of 149mm. 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 San Juan Chamelco 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.
