Saint-Louis in Winter
In winter (December, January and February), Saint-Louis sees average daytime highs around 26°C and overnight lows near 20°C, with 6 mm of rain over about 1 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 28°C in early December to 25°C by late February. The sky is clear or mostly clear about 52% of the time across winter, and the air most often feels dry.
Winter is Saint-Louis's 2nd-best season to visit on our travel score. For the whole year in context, see Saint-Louis's year-round climate.
- Avg daytime high
- 26°C
- 3rd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 6 mm
- 1 wet days
- Avg wind
- 21 km/h
- Travel score
- 8.6
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Saint-Louis in Winter
Over the season highs ease from about 28°C in early December to 25°C by late February.
A typical winter day in Saint-Louis reaches about 26°C and drops to 20°C overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Saint-Louis
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Saint-Louis weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 19° | 3 | 0.2 | 11.2 | 8.7 |
| Feb | 25° / 19° | 1 | 0.2 | 11.5 | 8.8 |
| Mar | 25° / 20° | 0 | 0 | 11.9 | 9.1 |
| Apr | 25° / 20° | 0 | 0 | 12.3 | 9.2 |
| May | 25° / 21° | 0 | 0 | 12.7 | 9.1 |
| Jun | 27° / 23° | 1 | 0.3 | 12.9 | 8.7 |
| Jul | 28° / 25° | 11 | 2 | 12.9 | 7.6 |
| Aug | 29° / 26° | 57 | 7.8 | 12.5 | 5.9 |
| Sep | 30° / 27° | 52 | 7.2 | 12.1 | 5.6 |
| Oct | 30° / 26° | 13 | 2.1 | 11.6 | 6.1 |
| Nov | 29° / 24° | 0 | 0.1 | 11.3 | 6.8 |
| Dec | 27° / 21° | 2 | 0.3 | 11.1 | 8.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 52% of the time across winter.
Chance of precipitation in Winter
Saint-Louis gets around 6 mm of rain over 1 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 21 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 06 min in early December to 11 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.4 kWh/m².
Hazard calendar for Saint-Louis
In winter, Saint-Louis overlaps its dust season. The full year is below, with each hazard's peak months called out.
Saint-Louis sits in the Atlantic hurricane belt; the season peaks August–October.
Saint-Louis sees dust haze year-round, heaviest in June.
Is winter a good time to visit Saint-Louis?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Saint-Louis for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Saint-Louis in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Saint-Louis sees daytime highs around 26°C and nights near 20°C. Worth packing: light clothes, sun protection and a windbreaker.
Sea temperature near Saint-Louis in Winter
The nearest coast averages about 20°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in September at about 28°C and coldest in February near 19°C.
It's comfortable for a long swim from May 3 to Jan 11 — about 8.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 19 | 19 | 19 | 21 | 24 | 26 | 28 | 28 | 28 | 25 | 22 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Cool |
| Feb | 19 | Cool |
| Mar | 19 | Cool |
| Apr | 19 | Cool |
| May | 21 | Refreshing |
| Jun | 24 | Refreshing |
| Jul | 26 | Warm |
| Aug | 28 | Warm |
| Sep | 28 | Tropical |
| Oct | 28 | Warm |
| Nov | 25 | Warm |
| Dec | 22 | Refreshing |
UV index in Saint-Louis in Winter
Clear-sky midday UV across winter averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Saint-Louis peaks around March 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 11 | 13 | 11 | 12 | 10 | 10 | 11 | 11 | 9 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 11 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Extreme |
| Jul | 10 | Very high |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 9 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Saint-Louis in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Saint-Louis is worst in January — around 99 µg/m³ PM2.5 (unhealthy), about 3.3× the cleanest month (August, 30 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 99 | 97 | 70 | 50 | 46 | 61 | 42 | 30 | 35 | 51 | 54 | 90 |
| Level | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Unhealthy | Poor | Moderate | Moderate | Poor | Poor | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 99 | Unhealthy |
| Feb | 97 | Unhealthy |
| Mar | 70 | Unhealthy |
| Apr | 50 | Poor |
| May | 46 | Poor |
| Jun | 61 | Unhealthy |
| Jul | 42 | Poor |
| Aug | 30 | Moderate |
| Sep | 35 | Moderate |
| Oct | 51 | Poor |
| Nov | 54 | Poor |
| Dec | 90 | Unhealthy |
Where is Saint-Louis?
Saint-Louis sits at 16.0°N, 16.5°W, 8 m above sea level, in Senegal. The nearest listed city is Louga, 53 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 9 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 26 m; within 80 km, only modest variations in elevation — a maximum elevation change of 57 m.
The land around Saint-Louis is covered by water (34%), artificial surfaces (27%) and wetland (22%) within 3 km, water (47%) and grassland (26%) within 16 km, and grassland (39%) and water (35%) within 80 km.
Senegal travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / D / E / K
- 230 V · 50 Hz
- Prices
- ≈ 36% of US
- price level, 2025
- GDP per capita
- $1,955
- 2025
- Happiness
- 4.8 / 10
- World Happiness, 2025
- Safe drinking water
- 27%
- of population, 2024
- Homicide rate
- 0.3
- per 100k, 2015
- Road deaths
- 23.5
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 442
- Religion
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 (16.0179°, -16.4896°, elevation 8 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.