Bermeo in Summer
In summer (June, July and August), Bermeo sees average daytime highs around 20°C and overnight lows near 18°C, with 162 mm of rain over about 30 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 17°C in early June to 21°C by late August. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels humid.
Summer is Bermeo's best season of the year to visit on our travel score. For the whole year in context, see Bermeo's year-round climate.
- Avg daytime high
- 20°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 162 mm
- 30 wet days
- Avg wind
- 15 km/h
- Travel score
- 6.5
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Bermeo in Summer
Over the season highs climb from about 17°C in early June to 21°C by late August.
A typical summer day in Bermeo reaches about 20°C and drops to 18°C overnight. The warmest of the three months is August, the coolest June.
Bermeo 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° / 10° | 141 | 15.8 | 9.1 | 2.8 |
| Feb | 12° / 9° | 124 | 14.4 | 10.2 | 2.6 |
| Mar | 13° / 10° | 110 | 13.4 | 11.6 | 3.2 |
| Apr | 14° / 11° | 95 | 13.9 | 13.2 | 3.6 |
| May | 16° / 14° | 70 | 12.3 | 14.5 | 4.7 |
| Jun | 18° / 17° | 57 | 10.2 | 15.2 | 6.0 |
| Jul | 20° / 19° | 51 | 9.5 | 14.9 | 6.7 |
| Aug | 21° / 20° | 55 | 10.1 | 13.8 | 6.8 |
| Sep | 20° / 18° | 74 | 11.4 | 12.3 | 6.2 |
| Oct | 18° / 16° | 113 | 14 | 10.8 | 5.4 |
| Nov | 15° / 13° | 180 | 16.9 | 9.5 | 3.8 |
| Dec | 13° / 11° | 141 | 15.7 | 8.8 | 3.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
Bermeo gets around 162 mm of rain over 30 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 hours in early June to 13 h 06 min 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 5.8 kWh/m².
Is summer a good time to visit Bermeo?
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 a reasonable time to visit Bermeo for sightseeing.
What to pack for Bermeo in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Bermeo sees daytime highs around 20°C and nights near 18°C. Pack sun protection. Worth having: rain gear. About 30 days see rain.
Sea temperature near Bermeo in Summer
The nearest coast averages about 20°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 24 km away) is warmest in August at about 22°C and coldest in February near 13°C.
It's comfortable for a long swim from Jul 7 to Sep 24 — about 2.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 13 | 13 | 13 | 13 | 15 | 18 | 21 | 22 | 21 | 18 | 16 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 13 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 13 | Bracing |
| May | 15 | Cool |
| Jun | 18 | Cool |
| Jul | 21 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 18 | Cool |
| Nov | 16 | Cool |
| Dec | 14 | Bracing |
UV index in Bermeo in Summer
Clear-sky midday UV across summer averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Bermeo peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (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) | 1 | 2 | 5 | 6 | 6 | 8 | 8 | 8 | 5 | 4 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Bermeo?
Bermeo sits at 43.4°N, 2.7°W, 29 m above sea level, in Spain. The nearest listed city is Gernika-Lumo, 12 km away.
Topography around Bermeo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bermeo.
Within 3 km, the terrain around Bermeo has significant variations in elevation — a maximum elevation change of 394 m around an average of 70 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 675 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,596 m.
The land around Bermeo is covered by water (47%) and trees (38%) within 3 km, water (52%) and trees (37%) within 16 km, and trees (41%) and water (37%) within 80 km.
Spain travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $38,627
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 540
- 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 Bermeo (43.4209°, -2.7215°, elevation 29 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.