Climate Insights for Juan Santiago

The climate in Juan Santiago is warm and mild. The average annual temperature is 23°C and approximately 713mm of precipitation falls per year. April is the wettest month, receiving around 105mm of rainfall. Juan Santiago is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 16°C.

Juan Santiago sees moderate temperature variation throughout the year, ranging from 16°C to 30°C. The warmest month is August, when average highs reach 30°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 16°C and an average of 21°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Juan Santiago is a relatively dry area, receiving approximately 713mm of precipitation annually, which averages out to around 59mm per month. The wettest month is April, averaging 105mm of rainfall. October and September also tend to see above-average precipitation. The driest month is January, with just 14mm. That's 92mm less than April, 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.

Juan Santiago 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 June, averaging 10km/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. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 8km/h in winter, 8km/h in spring, 10km/h in summer, 7km/h in autumn.

It is currently spring in Juan Santiago, which began on March 20, 2026. Juan Santiago 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 August at around 30°C, while the coldest stretch bottoms out in January near 16°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Juan Santiago is during January, February, March, May, June, July, 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 55mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Juan Santiago 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.