Climate Overview
The climate in Arcos 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 108mm of rainfall. Arcos 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, December, when temperatures can drop to 6°C.
Temperature
Temperatures in Arcos de la Frontera vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 34°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 6°C and an average of 10°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.
Precipitation
Arcos 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 108mm of rainfall. November and April also tend to see above-average precipitation. The driest month is July, with just 1mm. That's 107mm 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.
Wind
Arcos de la Frontera is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
3 days until Summer
It is currently spring in Arcos de la Frontera, which began on March 20, 2026. Arcos 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 34°C, while the coldest stretch bottoms out in January near 6°C. Summer is next, beginning on June 21, 2026 — 3 days from now.
Spring
Temperatures range from 9 to 25°C. Precipitation is moderate at around 220mm for the season, averaging 73mm per month. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 34°C. Precipitation is minimal, with only around 9mm for the entire season. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 10 to 30°C. Precipitation is moderate at around 189mm for the season, averaging 63mm per month. Winds are generally light, averaging 2km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 6 to 17°C. Rainfall is relatively light, with around 146mm over the season and a monthly average of 49mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Arcos de la Frontera is during April, May, June, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 41mm per month. By contrast, August can be uncomfortably hot with highs reaching 34°C, while January is the coldest period with lows dropping to 6°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Arcos 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.