Irun weather in August

In August, Irun sees average daytime highs of 24°C and overnight lows near 16°C, with 90 mm of rain across 12.6 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 31% 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 Irun's 1st-clearest and 12th-windiest month. For the whole year in context, see Irun's year-round climate.

Daytime high
24°
1st warmest
Overnight low
16°
12th coldest
Rainfall
90 mm
12.6 wet days
Daylight
13 h 48 min
6:17 AM – 8:05 PM
Cloud cover
55%
1st clearest
Wind
8 km/h
12th windiest
Solar energy
5.18 kWh/m²
Travel score
6.7
out of 10

Irun is capital town of the municipality of Irun, 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 24°C through the month.

A typical August day in Irun reaches about 24°C in the afternoon and slips back to 16°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°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)
12416
22416
32416
42416
52416
62416
72416
82416
92416
102416
112416
122416
132416
142416
152416
162416
172416
182416
192416
202416
212416
222416
232416
242416
252315
262315
272315
282315
292315
302315
312315

Irun weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 12314.71.29.22.1
Feb11° / 11113.31.910.22.4
Mar14° / 10713.90.911.63.6
Apr15° / 12716.30.113.23.9
May18° / 11°12415.3014.55.1
Jun21° / 14°9812.6015.26.0
Jul23° / 15°8312.3014.96.5
Aug24° / 16°9012.6013.86.7
Sep21° / 14°9612.7012.36.1
Oct18° / 11°12413.8010.85.3
Nov14° / 15315.40.29.53.3
Dec11° / 12614.50.88.82.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45347
55347
65347
75446
85446
95347
105347
115347
125347
135248
145248
155248
165248
175248
185149
195149
205149
215149
225050
235050
245050
254951
264951
274951
285050
294951
305050
315050

Chance of precipitation in August

Any precipitation

Irun gets around 90 mm of rain over 12.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
340
440
540
640
740
840
939
1039
1139
1239
1338
1438
1538
1638
1738
1838
1938
2039
2139
2240
2340
2441
2541
2641
2741
2842
2942
3042
3142

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 42% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
133047200
233146201
333145201
443145201
543244201
643244191
753243191
853243191
953244191
1053244191
1163244181
1263144181
1363144181
1463144181
1563244181
1663244181
1763244181
1863144181
1963143181
2063143191
2173142191
2273242191
2383241190
2493240190
25103339180
26113338180
27123437170
28133436160
29143535150
30163535150
31173534140

Wind in August

Winds average 8 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 6:01 AM to 6:34 AM, and sunset from 8:26 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.46:018:26
214.46:028:24
314.36:038:23
414.36:048:22
514.36:058:21
614.26:068:19
714.26:078:18
814.16:088:17
914.16:108:15
1014.16:118:14
1114.06:128:13
1214.06:138:11
1313.96:148:10
1413.96:158:08
1513.86:168:07
1613.86:178:05
1713.86:198:04
1813.76:208:02
1913.76:218:00
2013.66:227:59
2113.66:237:57
2213.56:247:55
2313.56:257:54
2413.46:277:52
2513.46:287:50
2613.36:297:49
2713.36:307:47
2813.26:317:45
2913.26:327:43
3013.16:337:42
3113.16:347:40

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 1.38 kWh/m² to a high of 5.85 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
195.2Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Irun?

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

6.7
Sightseeing
1st-best month of the year
5.4
Beach & pool
1st-best month of the year

August is a reasonable time to visit Irun for sightseeing.

What to pack for Irun in August

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

In August, Irun sees daytime highs around 24°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Irun 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 offshore is warmest in August at about 22°C and coldest in February near 12°C.

It's comfortable for a long swim from Jul 1 to Sep 25 — about 2.9 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 Irun 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 Irun peaks around July 15 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar5Moderate
Apr6High
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Irun in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Irun is worst in February — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodFeb 2116 µg/m³Nov 207 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb16Moderate
Mar15Moderate
Apr12Good
May9Good
Jun9Good
Jul9Good
Aug9Good
Sep9Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Irun?

Irun sits at 43.3°N, 1.8°W, 23 m above sea level, in Spain. The nearest listed city is Hondarribia, 3.0 km away.

Topography around Irun

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

Within 3 km, the terrain around Irun has significant variations in elevation — a maximum elevation change of 342 m around an average of 53 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 883 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,044 m.

The land around Irun is covered by trees (47%) and artificial surfaces (26%) within 3 km, trees (45%) and water (36%) within 16 km, and trees (47%) and water (25%) within 80 km.

3 km
342 m
16 km
883 m
80 km
2,044 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Hondarribia 3.0 km · Errenteria 10 km · Pasaia 11 km · San Sebastian 15 km · Hernani 17 km · Lasarte 20 km · Oria 21 km · Biarritz 25 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 Irun (43.339°, -1.7894°, elevation 23 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).