Landerneau weather in August

In August, Landerneau sees average daytime highs of 20°C and overnight lows near 14°C, with 57 mm of rain across 11.3 wet days and about 14.1 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 21% 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 Landerneau's 3rd-clearest and 12th-windiest month. For the whole year in context, see Landerneau's year-round climate.

Daytime high
20°
1st warmest
Overnight low
14°
12th coldest
Rainfall
57 mm
11.3 wet days
Daylight
14 h 12 min
6:16 AM – 8:26 PM
Cloud cover
64%
3rd clearest
Wind
14 km/h
12th windiest
Solar energy
5.14 kWh/m²
Travel score
6.1
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical August day in Landerneau reaches about 20°C in the afternoon and slips back to 14°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12114
22114
32114
42114
52114
62114
72114
82014
92014
102014
112014
122014
132014
142014
152014
162014
172014
182014
192014
202014
212014
222013
232013
242013
252013
262013
272013
282013
292013
302013
312013

Landerneau weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 9114.68.61.7
Feb10° / 7512.79.91.8
Mar11° / 6512.411.62.6
Apr13° / 7412.513.43.4
May16° / 6811.8154.6
Jun18° / 12°5510.715.85.7
Jul20° / 13°5010.915.56.1
Aug20° / 14°5711.314.16.1
Sep19° / 12°5410.112.45.9
Oct15° / 10°871410.64.2
Nov12° / 8714.592.8
Dec10° / 9714.58.22.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24060
34060
44060
54060
64060
74060
84159
93961
103961
113961
123961
133961
144060
153961
163961
173961
183763
193763
203664
213664
223763
233763
243763
253763
263763
273763
283961
293961
304060
314159

Chance of precipitation in August

Any precipitation

Landerneau gets around 57 mm of rain over 11.3 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
236
336
436
536
636
736
836
936
1036
1136
1237
1337
1437
1537
1638
1738
1838
1938
2038
2138
2237
2337
2436
2535
2634
2733
2832
2931
3030
3130

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 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1275518
2275419
3275419
4275419
5275419
6285319
7285319
8285319
9285319
10285319
11295219
12295219
13295318
14295318
15305218
16305317
17305317
18305317
19305416
20315415
21325315
22335314
23355213
24365113
25385012
26394912
27404811
28424711
29434610
30444510
31464410

Wind in August

Winds average 14 km/h in August, the calmest month.

Across August, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 5:56 AM to 6:38 AM, and sunset from 8:50 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.95:568:50
214.95:578:49
314.85:588:47
414.86:008:46
514.76:018:44
614.76:038:43
714.66:048:41
814.66:058:40
914.56:078:38
1014.56:088:36
1114.46:098:35
1214.46:118:33
1314.36:128:31
1414.36:148:29
1514.26:158:28
1614.26:168:26
1714.16:188:24
1814.06:198:22
1914.06:218:20
2013.96:228:18
2113.96:248:16
2213.86:258:14
2313.86:268:12
2413.76:288:10
2513.76:298:08
2613.66:318:06
2713.56:328:04
2813.56:348:02
2913.46:358:00
3013.46:367:58
3113.36:387:56

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.14 kWh/m².

For context, solar energy here swings from a low near 0.9 kWh/m² to a high of 6.3 kWh/m² in June across the year — August's 5.14 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.7Bright
304.6Bright
314.6Bright
Planning a trip in August

Is August a good time to visit Landerneau?

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

6.1
Sightseeing
1st-best month of the year
3.3
Beach & pool
1st-best month of the year

August is a reasonable time to visit Landerneau for sightseeing.

What to pack for Landerneau in August

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

In August, Landerneau sees daytime highs around 20°C and nights near 14°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Landerneau in August

The nearest coast averages about 15°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 21 km away) is warmest in August at about 15°C and coldest in March near 10°C.

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

8°10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar10Bracing
Apr11Bracing
May12Bracing
Jun14Bracing
Jul15Bracing
Aug15Cool
Sep15Bracing
Oct14Bracing
Nov13Bracing
Dec12Bracing

UV index in Landerneau 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 Landerneau peaks around August 14 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 14UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul6High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Landerneau?

Landerneau sits at 48.5°N, 4.3°W, 15 m above sea level, in France. The nearest listed city is Brest, 19 km away.

Topography around Landerneau

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

Within 3 km, the terrain around Landerneau has only modest variations in elevation — a maximum elevation change of 184 m around an average of 80 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, significant variations in elevation — a maximum elevation change of 384 m.

The land around Landerneau is covered by trees (45%), cropland (21%) and grassland (20%) within 3 km, trees (33%), cropland (33%) and grassland (24%) within 16 km, and water (50%) within 80 km.

3 km
184 m
16 km
231 m
80 km
384 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Brest 19 km · Morlaix 34 km · Douarnenez 40 km · Quimper 52 km · Lannion 66 km · Concarneau 69 km · Ploemeur 100 km · Lorient 102 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 Landerneau (48.4515°, -4.2518°, elevation 15 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).