Valongo, Portugal — Weather in August 2026

Climate Overview

Valongo, Portugal in August has warm conditions, with highs averaging 27.4°C (81°F). Rain is rare, falling on about 2 days this month. Temperatures drop noticeably between day and night. Sea temperature stays cool at 17.5°C (64°F).

This month falls at the end of Summer.

Daily highs in August gradually drop from around 28°C (83°F) at the start to 26°C (78°F) by month's end.

August sees fairly even rainfall, totalling about 11 mm across the month.

Expect around 12.6h of sunshine at the start of August, decreasing to 11.8h by the end.

The warmest days tend to fall around the 22th, averaging 29°C (84°F).

Temperatures begin dropping heading into September.

Monthly August Averages

Temperature

27°C / 17°C

Feels Like

29°C / 18°C

Rain

2 days · 11 mm

Sunshine

12.3h / day

Humidity

72% — Humid

Wind

17 km/h

Wind Direction

NW (318°)

Gusts

33 km/h

Daylight

13.8 h

Cloud Cover

33%

Clear Sky Days

UV Index

7.2 — Very High

Sea Temperature

18°C

Dew Point

17°C — Humid

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:44

Daylight 13.8h

Sunset 20:35

What to Expect

Daytime temperatures around 27°C (81°F) are ideal for full-day outdoor exploration.

Rain is uncommon in this month, so most days stay dry from morning through evening.

Recent yearly records for August have stayed close to the long-run average.

Compare Months

3days (14 mm) Excellent

2days (11 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	13°C / 6°C	11°C / 3°C	12days (156 mm) Wet	6.3h Fair	84% Humid	2.2 Moderate	Fair	View Details
February	15°C / 7°C	12°C / 4°C	10days (116 mm) Wet	7.6h Good	81% Humid	3.2 Moderate	Fair	View Details
March	15°C / 8°C	13°C / 5°C	13days (142 mm) Wet	9h Good	79% Humid	4.6 Moderate	Fair	View Details
April	18°C / 10°C	17°C / 8°C	11days (136 mm) Wet	10.6h Excellent	78% Humid	6.2 High	Good	View Details
May	21°C / 12°C	21°C / 11°C	9days (80 mm) Wet	11.9h Excellent	77% Humid	7 High	Good	View Details
June best	23°C / 15°C	24°C / 15°C	8days (55 mm) Wet	12.7h Excellent	78% Humid	7.5 Very High	Excellent	View Details
July best	27°C / 17°C	29°C / 18°C	3days (14 mm) Excellent	13.1h Excellent	72% Muggy	7.8 Very High	Excellent	View Details
August best	27°C / 17°C	29°C / 18°C	2days (11 mm) Excellent	12.3h Excellent	72% Muggy	7.2 Very High	Excellent	View Details
September best	24°C / 16°C	25°C / 16°C	7days (56 mm) Good	10.5h Excellent	74% Muggy	5.7 High	Excellent	View Details
October	21°C / 13°C	21°C / 13°C	13days (173 mm) Wet	8.1h Good	80% Humid	3.8 Moderate	Good	View Details
November	16°C / 10°C	14°C / 8°C	14days (183 mm) Wet	6.7h Fair	84% Humid	2.6 Moderate	Wet	View Details
December	14°C / 8°C	12°C / 5°C	14days (167 mm) Wet	6.1h Fair	86% Very Muggy	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.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

Packing List

Breathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is August a good time to visit Valongo?

August is typically excellent for visiting Valongo, with average highs of 27°C (81°F) and around 2 rainy days. Valongo, Portugal in August has warm conditions, with highs averaging 27.4°C (81°F). Rain is rare, falling on about 2 da

Does it rain a lot in Valongo in August?

Valongo typically sees around 2 rainy days in August with 11 mm (0.4 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Valongo in August?

Evenings in Valongo during August are mild at 17°C (63°F). A light cardigan is usually enough.

What should I pack for Valongo in August?

With highs of 27°C (81°F) and lows of 17°C (63°F) in August, we recommend: Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Valongo in August?

The average UV index in Valongo 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 Valongo in August?

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

Does it snow in Valongo in August?

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

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