Climate Insights for Darien

The climate in Darien is temperate. The average annual temperature is 11°C and approximately 333mm of precipitation falls per year. October is the wettest month, receiving around 33mm of rainfall. Darien sits near the equator, so seasonal temperature differences are minimal throughout the year.

Darien has relatively stable temperatures year-round, staying within a 9°C range. October is the warmest month, though highs remain moderate at 15°C with a mean of 13°C. June is the coolest month, with minimum temperatures around 6°C and an average of 9°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between September and October, with a 2°C shift in average temperatures.

Darien is a quite dry location, receiving approximately 333mm of precipitation annually, which averages out to around 28mm per month. The wettest month is January, averaging 33mm of rainfall. February and March also tend to see above-average precipitation. The driest month is December, with just 2mm. That's 31mm less than January, 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.

Darien 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 August, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 12km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 7km/h in winter, 10km/h in spring, 14km/h in summer, 8km/h in autumn.

It is currently summer in Darien, which began on June 21, 2026. Darien sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 15°C, while the coldest stretch bottoms out in June near 6°C. Autumn is next, beginning on September 23, 2026 — 17 days from now.

The table below shows monthly climate averages for Darien 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.