Climate Insights for Dilley

The climate in Dilley is warm and mild. The average annual temperature is 23°C and approximately 607mm of precipitation falls per year. May is the wettest month, receiving around 121mm of rainfall. Dilley is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 8°C.

Temperatures in Dilley vary considerably across the year, with a 30°C difference between the coldest and warmest months. August is the hottest month, with daytime highs reaching 38°C and an average of 31°C. January is the coolest month, with minimum temperatures around 8°C and an average of 13°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Dilley is a relatively dry area, receiving approximately 607mm of precipitation annually, which averages out to around 51mm per month. The wettest month is May, averaging 121mm of rainfall. September and April also tend to see above-average precipitation. The driest month is February, with just 24mm. That's 97mm less than May, 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.

Dilley is mildly breezy, with an average annual wind speed of 20km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in November, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 18km/h in winter, 22km/h in spring, 21km/h in summer, 17km/h in autumn.

It is currently spring in Dilley, which began on March 20, 2026. Dilley 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 38°C, while the coldest stretch bottoms out in January near 8°C. Summer is next, beginning on June 21, 2026 — 87 days from now.

The best time to visit Dilley is during February, March, April, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 44mm per month. By contrast, August can be uncomfortably hot with highs reaching 38°C, while January is the coldest period with lows dropping to 8°C. 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 Dilley 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.