Castellbisbal, Spain — Weather in August 2026

Climate Overview

Castellbisbal, Spain in August has hot conditions, with highs reaching 29.3°C (85°F) and afternoons the warmest part of the day. Sea temperature reaches 27.4°C (81°F).

This month falls at the end of Summer.

Daily highs in August gradually drop from around 30°C (87°F) at the start to 27°C (81°F) by month's end.

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 12.8h of sunshine at the start of August, decreasing to 10.7h by the end.

The warmest days tend to fall around the 2th, averaging 30.5°C (87°F).

Compared to July, this month is about 0°C cooler with 2 more rainy days. Temperatures begin dropping heading into September.

Monthly August Averages

Temperature

29°C / 21°C

Feels Like

32°C / 24°C

Rain

8 days · 60 mm

Sunshine

11.8h / day

Humidity

73% — Muggy

Wind

15 km/h

Wind Direction

S (173°)

Gusts

34 km/h

Daylight

13.8 h

Cloud Cover

43%

Clear Sky Days

5.6

UV Index

6.9 — High

Sea Temperature

27°C

Dew Point

20°C — Humid

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 07:01

Daylight 13.8h

Sunset 20:52

What to Expect

Daytime temperatures around 29°C (85°F) are ideal for full-day outdoor exploration.

Rain usually comes in shorter passing showers rather than all-day rain.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	13°C / 4°C	10°C / 1°C	5days (39 mm) Good	7.3h Good	78% Humid	2.5 Moderate	Fair	View Details
February	15°C / 5°C	12°C / 3°C	7days (40 mm) Good	8.3h Good	79% Humid	3.3 Moderate	Fair	View Details
March	16°C / 7°C	14°C / 4°C	9days (59 mm) Wet	9.4h Good	76% Humid	4.5 Moderate	Fair	View Details
April	18°C / 9°C	17°C / 7°C	9days (76 mm) Wet	10.7h Excellent	76% Humid	6 High	Good	View Details
May	22°C / 12°C	22°C / 12°C	9days (56 mm) Wet	12.3h Excellent	76% Humid	7.1 Very High	Good	View Details
June best	27°C / 17°C	28°C / 19°C	7days (37 mm) Good	13.1h Excellent	71% Muggy	7.5 Very High	Excellent	View Details
July best	29°C / 20°C	32°C / 23°C	6days (37 mm) Good	13.2h Excellent	71% Muggy	7.4 Very High	Excellent	View Details
August best	29°C / 21°C	32°C / 24°C	8days (60 mm) Wet	11.8h Excellent	73% Muggy	6.9 High	Excellent	View Details
September best	25°C / 18°C	26°C / 19°C	13days (86 mm) Wet	10.1h Excellent	79% Humid	5.5 High	Excellent	View Details
October	21°C / 14°C	21°C / 14°C	10days (99 mm) Wet	8.5h Good	82% Humid	4.2 Moderate	Good	View Details
November	17°C / 8°C	15°C / 7°C	8days (49 mm) Wet	7.7h Good	79% Humid	2.8 Moderate	Good	View Details
December	14°C / 5°C	12°C / 3°C	5days (31 mm) Good	7.1h Good	81% Humid	2.1 Moderate	Fair	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is August a good time to visit Castellbisbal?

August is typically excellent for visiting Castellbisbal, with average highs of 29°C (85°F) and around 8 rainy days. Castellbisbal, Spain in August has hot conditions, with highs reaching 29.3°C (85°F) and afternoons the warmest part of

Does it rain a lot in Castellbisbal in August?

Castellbisbal typically sees around 8 rainy days in August with 60 mm (2.4 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Castellbisbal in August?

Nights stay pleasantly warm in Castellbisbal during August, around 21°C (70°F). Light evening wear is sufficient.

What should I pack for Castellbisbal in August?

With highs of 29°C (85°F) and lows of 21°C (70°F) in August, we recommend: Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses. Comfortable walking shoes are essential.

Is August among the best months weather-wise in Castellbisbal?

Yes, August offers some of the best weather conditions in Castellbisbal with comfortable temperatures and lower chances of rain.

What is the UV index in Castellbisbal in August?

The average UV index in Castellbisbal during August is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Castellbisbal in August?

Castellbisbal gets approximately 14 hours of daylight per day in August, with around 12 hours of sunshine.

Does it snow in Castellbisbal in August?

Snow is uncommon in Castellbisbal during August based on 10-year climate averages.

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