Current Conditions

Castelldefels, Catalonia

78°F26°C

Rain

Wind

SE 3 mph5 km/h

Humidity

80%

Cloud Cover

89%

As of Tuesday, September 8, 2026 at 9:57 PM GMT+2

Today's Outlook

Night

Overcast, with a low around 68°F20°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. 82% chance of light rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 77°F25°C	Low 68°F20°C	Precip 0.9 in22.9 mm97%	Cloud 91%	Wind E 6 mph10 km/h	Wednesday: Overcast and warm, with a high of 73°F23°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 97% chance of rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 68°F20°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. 82% chance of light rain throughout the night.
Showers	High 77°F25°C	Low 64°F18°C	Precip 0.04 in1.1 mm45%	Cloud 29%	Wind WSW 7 mph11 km/h	Thursday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the WSW at 7 to 9 mph11 to 15 km/h. 12% chance of drizzle in the morning. Thursday Night: Partly cloudy, with a low around 65°F19°C. Breezy from the SW at 6 to 10 mph10 to 16 km/h. 45% chance of showers throughout the night.
Clear	High 77°F25°C	Low 63°F17°C	Precip 0.01 in0.2 mm5%	Cloud 16%	Wind S 5 mph8 km/h	Friday: Mostly clear and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the SSE at 5 to 8 mph8 to 13 km/h. Friday Night: Mostly clear, with a low around 64°F18°C. Light wind from the SSW around 4 mph7 km/h.
Drizzle	High 78°F25°C	Low 66°F19°C	Precip 0.02 in0.5 mm22%	Cloud 21%	Wind S 5 mph8 km/h	Saturday: Partly cloudy and warm, with a high of 78°F25°C and morning low of 66°F19°C. Breezy from the SSW at 5 to 9 mph9 to 15 km/h. 22% chance of drizzle in the afternoon. Saturday Night: Mostly clear, with a low around 66°F19°C. Breezy from the S at 4 to 7 mph7 to 11 km/h.
Clear	High 80°F26°C	Low 66°F19°C	Precip 0.01 in0.2 mm5%	Cloud 35%	Wind SW 5 mph8 km/h	Sunday: Partly cloudy and warm, with a high of 80°F26°C and morning low of 66°F19°C. Breezy from the SSW at 5 to 9 mph9 to 15 km/h. Sunday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 4 to 7 mph7 to 12 km/h.
Clear	High 81°F27°C	Low 67°F19°C	Precip 0.01 in0.2 mm6%	Cloud 29%	Wind S 4 mph7 km/h	Monday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the S at 5 to 9 mph9 to 14 km/h. Humid. Monday Night: Partly cloudy, with a low around 67°F20°C. Light wind from the SSW around 3 mph6 km/h.
Clear	High 81°F27°C	Low 67°F19°C	Precip 0 in0.1 mm4%	Cloud 17%	Wind SSW 5 mph8 km/h	Tuesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the S at 6 to 9 mph9 to 15 km/h. Humid. Tuesday Night: Mostly clear, with a low around 67°F19°C. Light wind from the WSW around 4 mph7 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	77°F25°C	68°F20°C	0.9 in22.9 mm· 97%	91%	Rain	E 6 mph10 km/h
DayOvercast and warm, with a high of 73°F23°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 97% chance of rain throughout the day. Humid. NightOvercast, with a low around 68°F20°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. 82% chance of light rain throughout the night.
	ThursdaySep 10	77°F25°C	64°F18°C	0.04 in1.1 mm· 45%	29%	Showers	WSW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the WSW at 7 to 9 mph11 to 15 km/h. 12% chance of drizzle in the morning. NightPartly cloudy, with a low around 65°F19°C. Breezy from the SW at 6 to 10 mph10 to 16 km/h. 45% chance of showers throughout the night.
	FridaySep 11	77°F25°C	63°F17°C	0.01 in0.2 mm· 5%	16%	Clear	S 5 mph8 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the SSE at 5 to 8 mph8 to 13 km/h. NightMostly clear, with a low around 64°F18°C. Light wind from the SSW around 4 mph7 km/h.
	SaturdaySep 12	78°F25°C	66°F19°C	0.02 in0.5 mm· 22%	21%	Drizzle	S 5 mph8 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 66°F19°C. Breezy from the SSW at 5 to 9 mph9 to 15 km/h. 22% chance of drizzle in the afternoon. NightMostly clear, with a low around 66°F19°C. Breezy from the S at 4 to 7 mph7 to 11 km/h.
	SundaySep 13	80°F26°C	66°F19°C	0.01 in0.2 mm· 5%	35%	Clear	SW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 80°F26°C and morning low of 66°F19°C. Breezy from the SSW at 5 to 9 mph9 to 15 km/h. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SW at 4 to 7 mph7 to 12 km/h.
	MondaySep 14	81°F27°C	67°F19°C	0.01 in0.2 mm· 6%	29%	Clear	S 4 mph7 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the S at 5 to 9 mph9 to 14 km/h. Humid. NightPartly cloudy, with a low around 67°F20°C. Light wind from the SSW around 3 mph6 km/h.
	TuesdaySep 15	81°F27°C	67°F19°C	0 in0.1 mm· 4%	17%	Clear	SSW 5 mph8 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the S at 6 to 9 mph9 to 15 km/h. Humid. NightMostly clear, with a low around 67°F19°C. Light wind from the WSW around 4 mph7 km/h.
	WednesdaySep 16	78°F26°C	68°F20°C	0.19 in4.7 mm· 47%	45%	Showers	SSE 5 mph9 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the S at 6 to 9 mph10 to 15 km/h. 43% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 69°F20°C. Breezy from the SSE at 5 to 7 mph8 to 12 km/h. 47% chance of showers in the evening.
	ThursdaySep 17	75°F24°C	66°F19°C	0.33 in8.4 mm· 52%	55%	Showers	SSE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 66°F19°C. Breezy from the S at 6 to 9 mph10 to 15 km/h. 48% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the SE at 5 to 7 mph9 to 11 km/h. 52% chance of showers throughout the night.
	FridaySep 18	75°F24°C	65°F18°C	0.15 in3.9 mm· 30%	49%	Showers	SSE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 30% chance of showers throughout the day. NightPartly cloudy, with a low around 65°F19°C. Light wind from the SE around 5 mph8 km/h. 25% chance of drizzle throughout the night.
	SaturdaySep 19	76°F24°C	65°F18°C	0.11 in2.8 mm· 27%	46%	Showers	SE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 65°F18°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. 27% chance of drizzle throughout the day. NightPartly cloudy, with a low around 65°F19°C. Light wind from the ESE around 5 mph8 km/h. 21% chance of showers throughout the night.
	SundaySep 20	76°F24°C	65°F19°C	0.12 in3.1 mm· 31%	50%	Showers	SE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 65°F19°C. Breezy from the SSE at 6 to 8 mph9 to 13 km/h. 31% chance of showers throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the E around 4 mph7 km/h. 23% chance of drizzle throughout the night.
	MondaySep 21	77°F25°C	65°F18°C	0.08 in2.1 mm· 32%	51%	Drizzle	SE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 65°F18°C. Breezy from the SSE at 6 to 8 mph9 to 12 km/h. 32% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Light wind from the E around 4 mph7 km/h. 18% chance of drizzle throughout the night.
	TuesdaySep 22	75°F24°C	65°F18°C	0.13 in3.2 mm· 36%	54%	Showers	ESE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. 36% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F19°C. Light wind from the ENE around 5 mph8 km/h. 25% chance of drizzle throughout the night.
	WednesdaySep 23	75°F24°C	64°F18°C	0.11 in2.7 mm· 26%	55%	Drizzle	E 6 mph9 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h. 26% chance of drizzle throughout the day. NightMostly cloudy, with a low around 65°F18°C. Light wind from the NE around 5 mph8 km/h. 23% chance of drizzle throughout the night.

Nearby Cities

Gavà3 mi4 km Viladecans3 mi5 km Sant Boi de Llobregat6 mi9 km El Prat de Llobregat7 mi12 km Sant Joan Despí8 mi12 km Cornellà de Llobregat8 mi12 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 41.2779°N, 1.9703°E·Elevation: 14m·Timezone: Europe/Madrid·Population: 66,375