Saint-Louis weather in January

In January, Saint-Louis sees average daytime highs of 4°C and overnight lows near -1°C, with 80 mm of precipitation across 13.5 wet days and about 8.7 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 4°C through the month. The sky is clear or mostly clear about 19% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of January to 9 h 12 min by month's end. Set against the rest of the year, January is Saint-Louis's 10th-clearest and 2nd-windiest month. For the whole year in context, see Saint-Louis's year-round climate.

Daytime high
12th warmest
Overnight low
-1°
1st coldest
Precipitation
80 mm
13.5 wet days
Daylight
8 h 36 min
8:20 AM – 4:58 PM
Cloud cover
70%
10th clearest
Wind
9 km/h
2nd windiest
Solar energy
1.21 kWh/m²
Travel score
0.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 4°C through the month.

A typical January day in Saint-Louis reaches about 4°C in the afternoon and slips back to -1°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 10°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
14-1
24-1
34-1
44-1
54-1
64-1
74-1
85-1
95-1
105-1
115-1
124-1
134-1
144-1
154-1
164-1
174-1
184-1
194-1
204-1
214-1
224-1
234-1
244-1
254-1
264-2
274-2
284-2
294-2
304-2
314-2

How January really feels in Saint-Louis

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
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-Louis weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°8013.568.70.0
Feb / -1°7211.55.59.90.4
Mar10° / 8313.53.911.62.2
Apr14° / 9014.11.613.33.8
May18° / 12916.80.114.94.9
Jun22° / 12°11815.8015.75.7
Jul24° / 14°12115.4015.46.2
Aug24° / 14°12515.2014.16.2
Sep19° / 10°9512.6012.45.7
Oct14° / 9713.20.310.63.8
Nov / 94132.89.11.3
Dec / -0°10114.15.58.30.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
42872
52872
62872
73070
83169
93169
103169
113169
123169
133268
143268
153367
163367
173466
183466
193466
203367
213367
223367
233367
243367
253367
263367
273268
283367
293466
303367
313367

Chance of precipitation in January

Any precipitationSnow

Saint-Louis gets around 80 mm of rain and snow over 13.5 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 43% and peaks near 46% on the wettest days, and about 6 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14618
24618
34618
44617
54617
64617
74617
84517
94517
104417
114417
124318
134318
144319
154319
164320
174220
184221
194221
204221
214222
224222
234222
244222
254222
264222
274222
284222
294122
304122
314122

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 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 18 min at the start of January to 9 h 12 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 8:24 AM to 8:07 AM, and sunset from 4:42 PM to 5:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.38:244:42
28.38:244:42
38.38:244:43
48.38:244:44
58.48:244:45
68.48:244:46
78.48:244:47
88.48:244:48
98.48:234:50
108.58:234:51
118.58:234:52
128.58:224:53
138.58:224:54
148.68:214:55
158.68:214:57
168.68:204:58
178.78:204:59
188.78:195:01
198.78:185:02
208.88:175:03
218.88:175:05
228.88:165:06
238.98:155:07
248.98:145:09
259.08:135:10
269.08:125:12
279.08:115:13
289.18:105:15
299.18:095:16
309.28:085:18
319.28:075:19

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.21 kWh/m².

For context, solar energy here swings from a low near 0.98 kWh/m² to a high of 5.59 kWh/m² in June across the year — January's 1.21 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.0Dim
21.0Dim
31.0Dim
41.0Dim
51.0Dim
61.0Dim
71.1Dim
81.1Dim
91.1Dim
101.1Dim
111.1Dim
121.1Dim
131.1Dim
141.2Dim
151.2Dim
161.2Dim
171.2Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.4Dim
241.4Dim
251.4Dim
261.4Dim
271.5Dim
281.5Dim
291.5Dim
301.6Dim
311.6Dim
Planning a trip in January

Is January a good time to visit Saint-Louis?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
8th-best month of the year

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

What to pack for Saint-Louis in January

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

In January, Saint-Louis sees daytime highs around 4°C and nights near -1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 14 days see rain.

a warm layera heavy coatrain gear

UV index in Saint-Louis 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-Louis peaks around July 14 at about 8 (very 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May7High
Jun7Very high
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Saint-Louis?

Saint-Louis sits at 47.6°N, 7.6°E, 248 m above sea level, in France. The nearest listed city is Basel, 4.0 km away.

Topography around Saint-Louis

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

Within 3 km, the terrain around Saint-Louis has only modest variations in elevation — a maximum elevation change of 49 m around an average of 256 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 626 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,427 m.

The land around Saint-Louis is covered by artificial surfaces (46%) within 3 km, trees (43%) and cropland (26%) within 16 km, and trees (54%) and grassland (23%) within 80 km.

3 km
49 m
16 km
626 m
80 km
1,427 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Basel 4.0 km · Weil am Rhein 5.0 km · Allschwil 5.0 km · Riehen 7.0 km · Lörrach 8.0 km · Muttenz 10 km · Reinach 11 km · Rheinfelden 17 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-Louis (47.5921°, 7.5592°, elevation 248 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. 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).