Ermua weather in August

In August, Ermua sees average daytime highs of 23°C and overnight lows near 17°C, with 65 mm of rain across 11.1 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 33% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Ermua's 1st-clearest and 12th-windiest month. For the whole year in context, see Ermua's year-round climate.

Daytime high
23°
1st warmest
Overnight low
17°
12th coldest
Rainfall
65 mm
11.1 wet days
Daylight
13 h 48 min
6:21 AM – 8:08 PM
Cloud cover
53%
1st clearest
Wind
9 km/h
12th windiest
Solar energy
5.18 kWh/m²
Travel score
6.8
out of 10

Ermua is capital of Ermua Municipality, Spain.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical August day in Ermua reaches about 23°C in the afternoon and slips back to 17°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, August runs about 1°C warmer than July and about 2°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12317
22317
32317
42317
52317
62317
72317
82317
92317
102317
112317
122317
132317
142317
152317
162317
172317
182317
192317
202317
212317
222317
232317
242317
252317
262317
272316
282316
292216
302216
312216

Ermua weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 12415.30.89.22.4
Feb11° / 11013.71.410.22.6
Mar13° / 10513.30.511.63.5
Apr15° / 10915.30.113.13.8
May17° / 12°9314.3014.45.0
Jun20° / 14°7311.7015.16.0
Jul22° / 16°6610.8014.96.6
Aug23° / 17°6511.1013.86.8
Sep21° / 15°7511.6012.36.2
Oct18° / 13°11013.6010.85.4
Nov14° / 15715.80.19.53.5
Dec12° / 12414.50.58.92.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45743
55743
65842
75842
85842
95941
105941
115941
125941
135941
145941
155941
165842
175842
185743
195743
205644
215644
225545
235545
245545
255446
265347
275347
285446
295446
305446
315446

Chance of precipitation in August

Any precipitation

Ermua gets around 65 mm of rain over 11.1 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
637
737
836
936
1035
1134
1234
1333
1433
1532
1632
1732
1832
1932
2033
2133
2234
2334
2435
2535
2636
2736
2836
2936
3036
3136

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the humid band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
143346170
243445171
343444171
453444171
553443171
663443171
763442171
863442171
973442171
1073442171
1173342171
1273342171
1373342171
1473342171
1573342171
1673342171
1773343171
1873343171
1973243171
2083243171
2183242170
2283342170
2393341170
24103340160
25113440160
26123439150
27123538150
28133637140
29153636130
30163735130
31173734120

Wind in August

Winds average 9 km/h in August, the calmest month.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 6:04 AM to 6:38 AM, and sunset from 8:28 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.46:048:28
214.46:058:27
314.36:068:26
414.36:078:24
514.26:088:23
614.26:098:22
714.26:118:21
814.16:128:19
914.16:138:18
1014.06:148:17
1114.06:158:15
1214.06:168:14
1313.96:178:12
1413.96:188:11
1513.86:198:09
1613.86:218:08
1713.76:228:06
1813.76:238:05
1913.76:248:03
2013.66:258:01
2113.66:268:00
2213.56:277:58
2313.56:287:56
2413.46:307:55
2513.46:317:53
2613.36:327:51
2713.36:337:50
2813.26:347:48
2913.26:357:46
3013.16:367:44
3113.16:387:43

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.18 kWh/m².

For context, solar energy here swings from a low near 1.39 kWh/m² to a high of 5.86 kWh/m² in June across the year — August's 5.18 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Ermua?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.8
Sightseeing
1st-best month of the year
5.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Ermua for sightseeing.

What to pack for Ermua in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Ermua sees daytime highs around 23°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Ermua in August

The nearest coast averages about 22°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in August at about 22°C and coldest in February near 12°C.

It's comfortable for a long swim from Jul 3 to Sep 25 — about 2.8 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar13Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul21Refreshing
Aug22Refreshing
Sep21Refreshing
Oct18Cool
Nov16Cool
Dec14Bracing

UV index in Ermua in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks 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 Ermua peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Low
Mar5Moderate
Apr6High
May6High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Ermua?

Ermua sits at 43.2°N, 2.5°W, 181 m above sea level, in Spain. The nearest listed city is Eibar, 3.0 km away.

Topography around Ermua

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ermua.

Within 3 km, the terrain around Ermua has large variations in elevation — a maximum elevation change of 661 m around an average of 352 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,295 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,497 m.

The land around Ermua is covered by trees (73%) within 3 km, trees (76%) and grassland (21%) within 16 km, and trees (44%) and water (27%) within 80 km.

3 km
661 m
16 km
1,295 m
80 km
1,497 m
treesshrubsgrasslandcroplandartificial surfaceswater
August weather nearby: Eibar 3.0 km · Durango 11 km · Arrasate / Mondragón 14 km · Amorebieta 19 km · Gernika-Lumo 21 km · Galdakao 28 km · Zarautz 29 km · Bermeo 31 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
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Ermua (43.1872°, -2.5026°, elevation 181 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).