Castellón de la Plana weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: March – November
What is the weather like in Castellón de la Plana in August?
In August, Castellón de la Plana is hot: daytime highs average 29 °C, and even at night it stays warm at around 22 °C. The sea averages 26.5 °C – lovely and warm for swimming. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 22 mm in total. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Castellón de la Plana.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 91 | 89 | 92 |
| Day | 28° | 29° | 26° |
| Night | 21° | 22° | 19° |
| Sea | 25° | 27° | 25° |
| Sun | 11 h | 10 h | 8 h |
| Rain days | 2 | 4 | 7 |
More details for August
- Daylight
- 13 h 48 min07:11 – 20:59
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 24 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 33 %on averageAll months
- Hot days
- 8 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Madrid
How the score comes together
- Temperatureweight 50 %79 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
Castellón de la Plana in August: quick answers
Is Castellón de la Plana hot in August?
Yes. In August, Castellón de la Plana is hot: daytime highs average 29 °C and nights stay around 22 °C. On about 8 days the thermometer climbs to 30 °C or more.
Can you swim in Castellón de la Plana in August?
Yes. In August the sea averages 26.5 °C – lovely and warm for swimming.
Does it rain much in Castellón de la Plana in August?
Rain is rare: about 4 days bring 22 mm in total.
Castellón de la Plana month by month
The whole year in Castellón de la PlanaAll destinations: SpainWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences