Vila Nova de Gaia in Summer
In summer (June, July and August), Vila Nova de Gaia sees average daytime highs around 24°C and overnight lows near 16°C, with 95 mm of rain over about 16 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 22°C in early June to 25°C by late August. The sky is clear or mostly clear about 61% of the time across summer, and the air most often feels comfortable.
Summer is Vila Nova de Gaia's best season of the year to visit on our travel score. For the whole year in context, see Vila Nova de Gaia's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 95 mm
- 16 wet days
- Avg wind
- 11 km/h
- Travel score
- 8.0
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Vila Nova de Gaia in Summer
Over the season highs climb from about 22°C in early June to 25°C by late August.
A typical summer day in Vila Nova de Gaia reaches about 24°C and drops to 16°C overnight. The warmest of the three months is August, the coolest June.
Vila Nova de Gaia weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 12° / 6° | 155 | 12.1 | 9.4 | 3.2 |
| Feb | 14° / 7° | 106 | 9.5 | 10.4 | 3.9 |
| Mar | 16° / 9° | 124 | 10.8 | 11.7 | 4.9 |
| Apr | 17° / 10° | 129 | 13 | 13.1 | 5.2 |
| May | 20° / 12° | 112 | 12 | 14.3 | 6.1 |
| Jun | 23° / 15° | 43 | 6.9 | 14.9 | 7.5 |
| Jul | 25° / 16° | 23 | 4.1 | 14.7 | 8.4 |
| Aug | 26° / 17° | 29 | 4.9 | 13.6 | 8.2 |
| Sep | 23° / 15° | 69 | 7.6 | 12.3 | 7.5 |
| Oct | 20° / 13° | 174 | 13.1 | 10.9 | 5.9 |
| Nov | 15° / 9° | 165 | 13.1 | 9.7 | 4.4 |
| Dec | 13° / 7° | 172 | 12.6 | 9.1 | 3.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 61% of the time across summer.
Chance of precipitation in Summer
Vila Nova de Gaia gets around 95 mm of rain over 16 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 11 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 42 min in early June to 13 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.0 kWh/m².
Hazard calendar for Vila Nova de Gaia
None of Vila Nova de Gaia's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Vila Nova de Gaia's rainy season runs October–May, when most of the year's rain falls.
Is summer a good time to visit Vila Nova de Gaia?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Vila Nova de Gaia for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Vila Nova de Gaia in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Vila Nova de Gaia sees daytime highs around 24°C and nights near 16°C. Pack sun protection. Worth having: light clothes. About 16 days see rain.
Sea temperature near Vila Nova de Gaia in Summer
The nearest coast averages about 17°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 17°C and coldest in February near 13°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 14 | 14 | 16 | 17 | 17 | 17 | 17 | 17 | 16 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 14 | Bracing |
| Apr | 14 | Bracing |
| May | 16 | Cool |
| Jun | 17 | Cool |
| Jul | 17 | Cool |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 17 | Cool |
| Nov | 16 | Cool |
| Dec | 14 | Bracing |
UV index in Vila Nova de Gaia in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Vila Nova de Gaia peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 7 | 9 | 9 | 8 | 5 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Vila Nova de Gaia in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Vila Nova de Gaia is worst in August — around 25 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (November, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 14 | 12 | 8 | 9 | 9 | 25 | 24 | 18 | 7 | 7 |
| Level | Good | Good | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 14 | Moderate |
| Apr | 12 | Moderate |
| May | 8 | Good |
| Jun | 9 | Good |
| Jul | 9 | Good |
| Aug | 25 | Moderate |
| Sep | 24 | Moderate |
| Oct | 18 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Vila Nova de Gaia?
Vila Nova de Gaia sits at 41.1°N, 8.6°W, 122 m above sea level, in Portugal. The nearest listed city is Santo Ovídio, 1.0 km away.
Topography around Vila Nova de Gaia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vila Nova de Gaia.
Within 3 km, the terrain around Vila Nova de Gaia has only modest variations in elevation — a maximum elevation change of 233 m around an average of 87 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 377 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,402 m.
The land around Vila Nova de Gaia is covered by artificial surfaces (60%) and trees (24%) within 3 km, trees (30%), water (30%) and artificial surfaces (26%) within 16 km, and trees (42%), water (26%) and grassland (23%) within 80 km.
Portugal travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $32,082
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 95%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2022
- Road deaths
- 8.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 612
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Vila Nova de Gaia (41.124°, -8.6124°, elevation 122 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.