Landerneau weather in December

In December, Landerneau sees average daytime highs of 10°C and overnight lows near 6°C, with 97 mm of precipitation across 14.5 wet days and about 8.2 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 12% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 24 min at the start of December to 8 h 12 min by month's end. Set against the rest of the year, December is Landerneau's 10th-clearest and 2nd-windiest month. For the whole year in context, see Landerneau's year-round climate.

Daytime high
10°
10th warmest
Overnight low
4th coldest
Precipitation
97 mm
14.5 wet days
Daylight
8 h 06 min
9:10 AM – 5:17 PM
Cloud cover
73%
10th clearest
Wind
20 km/h
2nd windiest
Solar energy
0.9 kWh/m²
Travel score
2.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 10°C through the month.

A typical December day in Landerneau reaches about 10°C in the afternoon and slips back to 6°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 13°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1117
2117
3117
4116
5116
6106
7106
8106
9106
10106
11106
12106
13106
14106
15106
16106
17106
18106
19106
20106
21106
22106
23106
24106
25106
26106
27106
28106
29106
30106
31106

Landerneau weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33070
43169
53268
63268
73268
83268
93268
103169
113169
123169
133070
142971
152872
162674
172674
182674
192575
202575
212476
222476
232476
242476
252476
262476
272476
282476
292476
302476
312575

Chance of precipitation in December

Any precipitation

Landerneau gets around 97 mm of rain and snow over 14.5 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 47% and peaks near 50% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)
147
247
346
446
545
645
745
844
944
1045
1145
1245
1346
1446
1547
1647
1747
1848
1948
2049
2149
2249
2350
2450
2550
2650
2749
2849
2949
3049
3149

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 20 km/h in December.

Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
620light breeze
720light breeze
820light breeze
920light breeze
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520breezy
1620breezy
1720breezy
1820breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320breezy
2420breezy
2520breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 24 min at the start of December to 8 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 8:55 AM to 9:16 AM, and sunset from 5:19 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.48:555:19
28.48:565:18
38.38:575:18
48.38:585:18
58.38:595:17
68.39:015:17
78.39:025:17
88.29:035:17
98.29:045:16
108.29:055:16
118.29:055:16
128.29:065:16
138.29:075:16
148.19:085:16
158.19:095:17
168.19:105:17
178.19:105:17
188.19:115:17
198.19:125:18
208.19:125:18
218.19:135:18
228.19:135:19
238.19:145:19
248.19:145:20
258.19:145:20
268.19:155:21
278.19:155:22
288.19:155:22
298.19:155:23
308.19:165:24
318.29:165:25

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.9 kWh/m² — the year's lowest.

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 — December's 0.9 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.0Dim
21.0Dim
31.0Dim
41.0Dim
51.0Dim
61.0Dim
70.9Dim
80.9Dim
90.9Dim
100.9Dim
110.9Dim
120.9Dim
130.9Dim
140.9Dim
150.9Dim
160.9Dim
170.9Dim
180.9Dim
190.9Dim
200.9Dim
210.9Dim
220.9Dim
230.9Dim
240.9Dim
250.9Dim
260.9Dim
270.9Dim
280.9Dim
290.9Dim
300.9Dim
310.9Dim
Planning a trip in December

Is December a good time to visit Landerneau?

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

2.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Landerneau.

What to pack for Landerneau in December

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

In December, Landerneau sees daytime highs around 10°C and nights near 6°C. Pack a warm layer and rain gear. Worth having: a windbreaker. About 15 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Landerneau in December

The nearest coast averages about 12°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. 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
December 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).