Douarnenez weather in August

In August, Douarnenez sees average daytime highs of 19°C and overnight lows near 16°C, with 54 mm of rain across 9 wet days and about 14.1 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 54 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Douarnenez's 2nd-clearest and 12th-windiest month. For the whole year in context, see Douarnenez's year-round climate.

Daytime high
19°
1st warmest
Overnight low
16°
12th coldest
Rainfall
54 mm
9 wet days
Daylight
14 h 06 min
6:18 AM – 8:25 PM
Cloud cover
57%
2nd clearest
Wind
17 km/h
12th windiest
Solar energy
5.02 kWh/m²
Travel score
6.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical August day in Douarnenez reaches about 19°C in the afternoon and slips back to 16°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 21°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11916
21916
31916
41916
51916
61916
71916
81916
91916
101916
111916
121916
131916
141916
151916
161916
171916
181916
191916
201916
211916
221916
231916
241816
251816
261816
271816
281816
291815
301815
311815

Douarnenez weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan10° / 11515.78.61.8
Feb / 8612.59.91.8
Mar11° / 7012.411.62.3
Apr12° / 691113.43.1
May14° / 11°589.914.94.3
Jun17° / 14°478.915.85.5
Jul18° / 16°479.315.46.2
Aug19° / 16°54914.16.3
Sep17° / 15°609.312.45.7
Oct15° / 13°10614.110.64.2
Nov13° / 10°11715.992.9
Dec11° / 12915.68.22.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45248
55347
65248
75248
85248
95347
105347
115248
125248
135248
145347
155347
165149
175149
185149
195050
204951
215050
225050
235050
245149
255149
265149
275248
285248
295248
305347
315446

Chance of precipitation in August

Any precipitation

Douarnenez gets around 54 mm of rain over 9 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 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
228
328
428
528
628
729
829
929
1029
1129
1229
1329
1429
1529
1630
1730
1830
1930
2030
2130
2230
2329
2429
2528
2627
2727
2826
2926
3026
3125

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11553311
21652311
31652311
41652311
51652311
61652311
71652311
81652311
91751311
101751311
111751302
121751302
131752292
141752292
151752292
161754281
171754281
181854271
191854271
201954261
212054251
222154241
232254231
242454220
252554210
262654200
272853190
282953180
293052180
303251170
313351160

Wind in August

Winds average 17 km/h in August, the calmest month.

Across August, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 54 min at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 5:57 AM to 6:39 AM, and sunset from 8:49 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.95:578:49
214.85:598:48
314.86:008:47
414.76:018:45
514.76:038:44
614.66:048:42
714.66:058:41
814.56:078:39
914.56:088:37
1014.46:098:36
1114.46:118:34
1214.36:128:32
1314.36:138:31
1414.26:158:29
1514.26:168:27
1614.16:188:25
1714.16:198:23
1814.06:208:22
1914.06:228:20
2013.96:238:18
2113.96:258:16
2213.86:268:14
2313.76:278:12
2413.76:298:10
2513.66:308:08
2613.66:328:06
2713.56:338:04
2813.56:348:02
2913.46:368:00
3013.36:377:58
3113.36:397:56

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.02 kWh/m².

For context, solar energy here swings from a low near 0.91 kWh/m² to a high of 6.12 kWh/m² in June across the year — August's 5.02 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.9Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.5Bright
314.5Bright
Planning a trip in August

Is August a good time to visit Douarnenez?

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

6.3
Sightseeing
1st-best month of the year
2.4
Beach & pool
1st-best month of the year

August is a reasonable time to visit Douarnenez for sightseeing.

What to pack for Douarnenez in August

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

In August, Douarnenez sees daytime highs around 19°C and nights near 16°C. Worth packing: rain gear and sun protection. About 9 days see rain.

rain gearsun protection

Sea temperature near Douarnenez in August

The nearest coast averages about 16°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 22 km away) is warmest in August at about 16°C and coldest in February near 10°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

8°10°12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar10Bracing
Apr11Bracing
May13Bracing
Jun15Bracing
Jul16Cool
Aug16Cool
Sep16Cool
Oct15Bracing
Nov14Bracing
Dec12Bracing

UV index in Douarnenez in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Douarnenez peaks around August 13 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5High
May6High
Jun7High
Jul6High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Douarnenez?

Douarnenez sits at 48.1°N, 4.3°W, 23 m above sea level, in France. The nearest listed city is Quimper, 20 km away.

Topography around Douarnenez

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

Within 3 km, the terrain around Douarnenez has only modest variations in elevation — a maximum elevation change of 94 m around an average of 25 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 329 m; within 80 km, significant variations in elevation — a maximum elevation change of 384 m.

The land around Douarnenez is covered by water (44%) and trees (27%) within 3 km, cropland (27%), water (27%) and trees (23%) within 16 km, and water (50%) within 80 km.

3 km
94 m
16 km
329 m
80 km
384 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Quimper 20 km · Brest 35 km · Concarneau 39 km · Landerneau 40 km · Morlaix 65 km · Ploemeur 78 km · Lorient 81 km · Lanester 82 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

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 Douarnenez (48.0954°, -4.329°, 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).