Climate Overview
The climate in Castell-Platja d'Aro is temperate. The average annual temperature is 17°C and approximately 580mm of precipitation falls per year. October is the wettest month, receiving around 85mm of rainfall. Castell-Platja d'Aro 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, February, December, when temperatures can drop to 7°C.
Temperature
Temperatures in Castell-Platja d'Aro vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 7°C and an average of 10°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.
Precipitation
Castell-Platja d'Aro is a relatively dry area, receiving approximately 580mm of precipitation annually, which averages out to around 48mm per month. The wettest month is October, averaging 85mm of rainfall. September and November also tend to see above-average precipitation. The driest month is July, with just 18mm. That's 68mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Castell-Platja d'Aro is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
8 days until Autumn
It is currently summer in Castell-Platja d'Aro, which began on June 21, 2026. Castell-Platja d'Aro 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 29°C, while the coldest stretch bottoms out in January near 7°C. Autumn is next, beginning on September 23, 2026 (8 days from now).
Spring
Temperatures range from 9 to 21°C. Precipitation is moderate at around 159mm for the season, averaging 53mm per month. Winds are generally light, averaging 13km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 19 to 29°C. Rainfall is relatively light, with around 67mm over the season and a monthly average of 22mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 11 to 25°C. Precipitation is moderate at around 206mm for the season, averaging 69mm per month. Winds are generally light, averaging 12km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from 7 to 15°C. Rainfall is relatively light, with around 147mm over the season and a monthly average of 49mm. Winds are generally light, averaging 13km/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 Castell-Platja d'Aro is during 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 53mm per month. By contrast, August can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 7°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 Castell-Platja d'Aro 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.
