Lorient weather in December

In December, Lorient sees average daytime highs of 10°C and overnight lows near 7°C, with 106 mm of precipitation across 13.3 wet days and about 8.3 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 16% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 30 min at the start of December to 8 h 18 min by month's end. Set against the rest of the year, December is Lorient's 11th-clearest and 1st-windiest month. For the whole year in context, see Lorient's year-round climate.

Daytime high
10°
10th warmest
Overnight low
4th coldest
Precipitation
106 mm
13.3 wet days
Daylight
8 h 12 min
9:03 AM – 5:16 PM
Cloud cover
71%
11th clearest
Wind
24 km/h
1st windiest
Solar energy
0.95 kWh/m²
Travel score
2.1
out of 10
Air quality
Good
PM2.5 9.2 µg/m³ · 2019

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

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 Lorient reaches about 10°C in the afternoon and slips back to 7°C overnight — a 3°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 about 1°C warmer than January.

10°15°151015202531
Avg high (°C)Avg low (°C)
1118
2118
3117
4117
5117
6117
7107
8107
9107
10107
11107
12107
13107
14107
15107
16107
17107
18107
19107
20107
21107
22107
23107
24107
25107
26106
27106
28106
29106
30106
31106

Lorient 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 / 96138.71.8
Feb / 71119.91.8
Mar11° / 5710.711.62.6
Apr13° / 6010.513.43.5
May16° / 11°5410.114.94.8
Jun18° / 13°43815.76.1
Jul20° / 15°397.815.46.7
Aug20° / 15°468.114.16.7
Sep19° / 14°567.712.46.3
Oct16° / 12°9812.710.64.5
Nov12° / 9713.69.13.0
Dec10° / 10613.38.32.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23466
33466
43565
53466
63466
73466
83466
93466
103466
113466
123466
133268
143169
153169
163070
173070
182971
192971
202971
212872
222773
232773
242773
252773
262773
272773
282773
292773
302773
312773

Chance of precipitation in December

Any precipitation

Lorient gets around 106 mm of rain and snow over 13.3 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 43% and peaks near 45% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)
144
244
343
443
542
642
741
841
941
1041
1141
1241
1341
1442
1542
1642
1743
1843
1943
2044
2144
2245
2345
2445
2545
2645
2745
2845
2945
3045
3145

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 24 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2824breezy
2924breezy
3024breezy
3124breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 30 min at the start of December to 8 h 18 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 8:48 AM to 9:09 AM, and sunset from 5:18 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.58:485:18
28.58:505:18
38.48:515:17
48.48:525:17
58.48:535:17
68.48:545:16
78.48:555:16
88.38:565:16
98.38:575:16
108.38:585:16
118.38:595:16
128.39:005:16
138.39:015:16
148.29:015:16
158.29:025:16
168.29:035:16
178.29:045:17
188.29:045:17
198.29:055:17
208.29:055:18
218.29:065:18
228.29:065:18
238.29:075:19
248.29:075:19
258.29:085:20
268.29:085:21
278.29:085:21
288.29:095:22
298.29:095:23
308.29:095:23
318.39:095:24

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.95 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.95 kWh/m² to a high of 6.1 kWh/m² in June across the year — December's 0.95 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.0Dim
41.0Dim
51.0Dim
61.0Dim
71.0Dim
81.0Dim
91.0Dim
101.0Dim
111.0Dim
121.0Dim
131.0Dim
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 Lorient?

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

2.1
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 Lorient.

What to pack for Lorient in December

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

In December, Lorient sees daytime highs around 10°C and nights near 7°C. Pack a warm layer. Worth having: rain gear and a windbreaker. About 13 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Lorient 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 14 km away) is warmest in August at about 18°C and coldest in February near 10°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar10Bracing
Apr12Bracing
May14Bracing
Jun16Cool
Jul18Cool
Aug18Cool
Sep17Cool
Oct16Cool
Nov14Bracing
Dec12Bracing

UV index in Lorient 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 Lorient peaks around August 10 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 10UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5High
May6High
Jun7High
Jul7High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Lorient?

Lorient sits at 47.7°N, 3.4°W, 10 m above sea level, in France. The nearest listed city is Lanester, 3.0 km away.

Topography around Lorient

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

Within 3 km, the terrain around Lorient has only modest variations in elevation — a maximum elevation change of 57 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 137 m; within 80 km, significant variations in elevation — a maximum elevation change of 373 m.

The land around Lorient is covered by artificial surfaces (41%) and trees (27%) within 3 km, water (33%) and trees (30%) within 16 km, and water (37%), trees (25%) and cropland (21%) within 80 km.

3 km
57 m
16 km
137 m
80 km
373 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Lanester 3.0 km · Ploemeur 5.0 km · Concarneau 43 km · Pontivy 47 km · Vannes 47 km · Quimper 61 km · Douarnenez 81 km · Guérande 85 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 Lorient (47.7482°, -3.3718°, elevation 10 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).