Climate Insights for San Juan Nepomuceno

The climate in San Juan Nepomuceno is warm and mild. The average annual temperature is 24°C and approximately 81mm of precipitation falls per year. September is the wettest month, receiving around 33mm of rainfall. San Juan Nepomuceno sits near the equator, so seasonal temperature differences are minimal throughout the year.

San Juan Nepomuceno sees moderate temperature variation throughout the year, ranging from 15°C to 35°C. May is the hottest month, with daytime highs reaching 35°C and an average of 27°C. February is the coolest month, with minimum temperatures around 15°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between February and March, with a 7°C shift in average temperatures.

San Juan Nepomuceno is a quite dry location, receiving approximately 81mm of precipitation annually, which averages out to around 7mm per month. The wettest month is September, averaging 33mm of rainfall. August and October also tend to see above-average precipitation. The driest month is April, with just 0mm. That's 33mm less than September, 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.

San Juan Nepomuceno is relatively calm, with an average annual wind speed of 5km/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 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 8km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently summer in San Juan Nepomuceno, which began on June 21, 2026. San Juan Nepomuceno sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 35°C, while the coldest stretch bottoms out in February near 15°C. Autumn is next, beginning on September 23, 2026 — 17 days from now.

The best time to visit San Juan Nepomuceno is during January, February, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 11mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 35°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for San Juan Nepomuceno 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.