Lannion weather in January

In January, Lannion sees average daytime highs of 9°C and overnight lows near 7°C, with 104 mm of precipitation across 16.4 wet days and about 8.5 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 9°C through the month. The sky is clear or mostly clear about 10% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 06 min at the start of January to 9 h 06 min by month's end. Set against the rest of the year, January is Lannion's 12th-clearest and 2nd-windiest month. For the whole year in context, see Lannion's year-round climate.

Daytime high
11th warmest
Overnight low
2nd coldest
Precipitation
104 mm
16.4 wet days
Daylight
8 h 30 min
9:09 AM – 5:38 PM
Cloud cover
75%
12th clearest
Wind
27 km/h
2nd windiest
Solar energy
1.03 kWh/m²
Travel score
1.7
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 9°C through the month.

A typical January day in Lannion reaches about 9°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 12°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
1107
2107
3107
4107
5107
6107
7107
8107
9107
10107
11107
12107
13107
14107
15107
16107
1797
1897
1997
2097
2197
2297
2397
2497
2597
2697
2797
2897
2996
3096
3196

Lannion weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 10416.48.51.7
Feb / 8714.29.81.6
Mar10° / 7013.311.62.1
Apr12° / 7011.713.42.8
May14° / 11°5910.4153.9
Jun16° / 13°488.715.95.1
Jul18° / 15°42915.56.0
Aug18° / 15°509.514.26.1
Sep17° / 14°551012.45.5
Oct15° / 12°971510.54.0
Nov12° / 10°11617.392.6
Dec10° / 12817.58.11.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22773
32773
42773
52773
62773
72674
82674
92674
102674
112674
122674
132674
142674
152674
162575
172773
182773
192674
202674
212674
222674
232674
242674
252575
262575
272674
282674
292674
302575
312674

Chance of precipitation in January

Any precipitation

Lannion gets around 104 mm of rain and snow over 16.4 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 53% and peaks near 57% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
157
257
356
456
556
655
755
854
954
1053
1153
1253
1352
1452
1552
1652
1752
1852
1952
2052
2152
2252
2352
2451
2551
2651
2751
2851
2950
3050
3150

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 January

Winds average 27 km/h in January.

Across January, daily wind ranges from about 26 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 06 min at the start of January to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over January. Sunrise moves from 9:13 AM to 8:55 AM, and sunset from 5:21 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.19:135:21
28.19:135:22
38.29:135:23
48.29:135:23
58.29:135:24
68.29:135:26
78.29:135:27
88.39:125:28
98.39:125:29
108.39:125:30
118.39:115:31
128.49:115:32
138.49:105:34
148.49:105:35
158.49:095:36
168.59:095:38
178.59:085:39
188.69:075:40
198.69:075:42
208.69:065:43
218.79:055:45
228.79:045:46
238.79:035:47
248.89:025:49
258.89:015:50
268.99:005:52
278.98:595:53
288.98:585:55
299.08:575:57
309.08:565:58
319.18:556:00

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.03 kWh/m².

For context, solar energy here swings from a low near 0.86 kWh/m² to a high of 6.03 kWh/m² in June across the year — January's 1.03 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.9Dim
20.9Dim
30.9Dim
40.9Dim
50.9Dim
60.9Dim
70.9Dim
80.9Dim
90.9Dim
100.9Dim
111.0Dim
121.0Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.0Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.2Dim
251.2Dim
261.2Dim
271.2Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in January

Is January a good time to visit Lannion?

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

1.7
Sightseeing
11th-best month of the year
0.0
Beach & pool
7th-best month of the year

January is a weaker month for outdoor sightseeing in Lannion.

What to pack for Lannion in January

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

In January, Lannion sees daytime highs around 9°C and nights near 7°C. Pack a warm layer and rain gear. Worth having: a windbreaker. About 16 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Lannion in January

The nearest coast averages about 11°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in August at about 17°C and coldest in March near 9°C.

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

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May12Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep17Cool
Oct16Cool
Nov14Bracing
Dec12Bracing

UV index in Lannion in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lannion peaks around August 12 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 11 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 12UV 7Jan 11UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul6High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Lannion?

Lannion sits at 48.7°N, 3.5°W, 30 m above sea level, in France. The nearest listed city is Morlaix, 32 km away.

Topography around Lannion

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

Within 3 km, the terrain around Lannion has only modest variations in elevation — a maximum elevation change of 108 m around an average of 63 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 186 m; within 80 km, significant variations in elevation — a maximum elevation change of 381 m.

The land around Lannion is covered by trees (41%) and grassland (23%) within 3 km, trees (27%), water (27%) and cropland (23%) within 16 km, and water (41%), cropland (22%) and trees (21%) within 80 km.

3 km
108 m
16 km
186 m
80 km
381 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Morlaix 32 km · Saint-Brieuc 56 km · Landerneau 66 km · Pontivy 82 km · Brest 85 km · Quimper 95 km · Douarnenez 96 km · Concarneau 101 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 Lannion (48.7326°, -3.4566°, elevation 30 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).