Climate Insights for Castellar de la Frontera

The climate in Castellar de la Frontera is warm and mild. The average annual temperature is 18°C and approximately 564mm of precipitation falls per year. March is the wettest month, receiving around 121mm of rainfall. Castellar de la Frontera 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, March, when temperatures can drop to 10°C.

Castellar de la Frontera sees moderate temperature variation throughout the year, ranging from 10°C to 28°C. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 10°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Castellar de la Frontera is a relatively dry area, receiving approximately 564mm of precipitation annually, which averages out to around 47mm per month. The wettest month is March, averaging 121mm of rainfall. December and November also tend to see above-average precipitation. The driest month is July, with just 0mm. That's 120mm less than March, 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.

Castellar de la Frontera is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 20km/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 be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 23km/h in winter, 23km/h in spring, 21km/h in summer, 21km/h in autumn.

It is currently spring in Castellar de la Frontera, which began on March 20, 2026. Castellar de la Frontera 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 28°C, while the coldest stretch bottoms out in January near 10°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Castellar de la Frontera is during April, May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 32mm per month. By contrast, January can be quite cold with temperatures dropping to 10°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 Castellar de la Frontera 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.