Saint-Brieuc weather in January

In January, Saint-Brieuc sees average daytime highs of 9°C and overnight lows near 4°C, with 60 mm of precipitation across 11.4 wet days and about 8.6 hours of daylight. It is the 12th-warmest and 5th-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 12% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 12 min at the start of January to 9 h 06 min by month's end. Set against the rest of the year, January is Saint-Brieuc's 12th-clearest and 1st-windiest month. For the whole year in context, see Saint-Brieuc's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
60 mm
11.4 wet days
Daylight
8 h 30 min
9:05 AM – 5:36 PM
Cloud cover
75%
12th clearest
Wind
18 km/h
1st windiest
Solar energy
1.04 kWh/m²
Travel score
1.5
out of 10
Air quality
Good
PM10 15.4 µg/m³ · 2019

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

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 Saint-Brieuc reaches about 9°C in the afternoon and slips back to 4°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 12°C. Set against its neighbours, January runs on par with December and on par with February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
194
294
394
494
594
694
794
894
994
1094
1194
1294
1394
1494
1594
1694
1794
1894
1994
2094
2194
2294
2394
2484
2584
2684
2784
2884
2984
3084
3184

How January really feels in Saint-Brieuc

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 9 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
9
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Saint-Brieuc weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6011.40.38.61.5
Feb / 5311.10.59.91.7
Mar11° / 5110.70.311.62.7
Apr13° / 5711.8013.43.6
May16° / 62110154.9
Jun19° / 12°569.5015.86.0
Jul21° / 13°469.1015.56.6
Aug21° / 14°499.5014.16.5
Sep19° / 12°489012.46.1
Oct16° / 10°6812.1010.64.5
Nov12° / 6412.6092.8
Dec / 7113.10.58.21.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22872
32773
42773
52773
62773
72773
82773
92674
102575
112674
122674
132674
142674
152674
162674
172674
182674
192674
202575
212575
222575
232575
242575
252575
262575
272575
282674
292773
302674
312674

Chance of precipitation in January

Any precipitation

Saint-Brieuc gets around 60 mm of rain and snow over 11.4 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 37% and peaks near 40% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
239
339
439
538
638
738
838
938
1038
1138
1238
1338
1437
1537
1637
1737
1837
1937
2037
2136
2236
2336
2436
2535
2635
2735
2835
2935
3036
3136

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 18 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 12 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 54 minutes over January. Sunrise moves from 9:10 AM to 8:51 AM, and sunset from 5:19 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.29:105:19
28.29:105:20
38.29:105:21
48.29:095:22
58.29:095:23
68.29:095:24
78.39:095:25
88.39:095:26
98.39:085:27
108.39:085:28
118.49:085:29
128.49:075:31
138.49:075:32
148.49:065:33
158.59:065:34
168.59:055:36
178.59:045:37
188.69:045:38
198.69:035:40
208.69:025:41
218.79:015:43
228.79:015:44
238.89:005:45
248.88:595:47
258.88:585:48
268.98:575:50
278.98:565:51
289.08:555:53
299.08:545:55
309.18:525:56
319.18:515:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.04 kWh/m².

For context, solar energy here swings from a low near 0.88 kWh/m² to a high of 5.86 kWh/m² in June across the year — January's 1.04 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
101.0Dim
111.0Dim
121.0Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.2Dim
241.2Dim
251.2Dim
261.2Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.4Dim
Planning a trip in January

Is January a good time to visit Saint-Brieuc?

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

1.5
Sightseeing
12th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Saint-Brieuc.

What to pack for Saint-Brieuc in January

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

In January, Saint-Brieuc sees daytime highs around 9°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Saint-Brieuc in January

The nearest coast averages about 10°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 16 km away) is warmest in August at about 18°C and coldest in February near 9°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar9Bracing
Apr10Bracing
May12Bracing
Jun14Bracing
Jul16Cool
Aug18Cool
Sep18Cool
Oct16Cool
Nov14Bracing
Dec12Bracing

UV index in Saint-Brieuc 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 Saint-Brieuc peaks around June 19 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 19UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Saint-Brieuc?

Saint-Brieuc sits at 48.5°N, 2.8°W, 96 m above sea level, in France. The nearest listed city is Pontivy, 52 km away.

Topography around Saint-Brieuc

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

Within 3 km, the terrain around Saint-Brieuc has only modest variations in elevation — a maximum elevation change of 141 m around an average of 92 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 275 m; within 80 km, significant variations in elevation — a maximum elevation change of 364 m.

The land around Saint-Brieuc is covered by artificial surfaces (41%) and trees (39%) within 3 km, trees (28%), cropland (28%) and water (23%) within 16 km, and water (33%), cropland (28%) and trees (24%) within 80 km.

3 km
141 m
16 km
275 m
80 km
364 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Pontivy 52 km · Lannion 56 km · Saint-Malo 58 km · Morlaix 78 km · Saint Helier 89 km · Rennes 93 km · Lanester 94 km · Vannes 95 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 Saint-Brieuc (48.5151°, -2.7684°, elevation 96 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).