Saint-Louis weather in October
In October, Saint-Louis sees average daytime highs of 30°C and overnight lows near 26°C, with 13 mm of rain across 2.1 wet days and about 11.6 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 59% of the time in October, and the air most often feels oppressive.
Daylight stretches from about 11 h 54 min at the start of October to 11 h 24 min by month's end. Set against the rest of the year, October is Saint-Louis's 5th-clearest and 10th-windiest month. For the whole year in context, see Saint-Louis's year-round climate.
- Daytime high
- 30°
- 1st warmest
- Overnight low
- 26°
- 11th coldest
- Rainfall
- 13 mm
- 2.1 wet days
- Daylight
- 11 h 36 min
- 7:02 AM – 6:40 PM
- Cloud cover
- 37%
- 5th clearest
- Wind
- 18 km/h
- 10th windiest
- Solar energy
- 6.1 kWh/m²
- Travel score
- 6.1
- out of 10
Saint-Louis is city and regional capital in Senegal.
- Founded
- 1659
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Day-to-day highs hold fairly steady near 30°C through the month.
A typical October day in Saint-Louis reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 27 |
| 2 | 30 | 27 |
| 3 | 30 | 27 |
| 4 | 30 | 27 |
| 5 | 30 | 27 |
| 6 | 30 | 27 |
| 7 | 30 | 27 |
| 8 | 30 | 27 |
| 9 | 30 | 27 |
| 10 | 30 | 27 |
| 11 | 30 | 27 |
| 12 | 30 | 27 |
| 13 | 30 | 26 |
| 14 | 30 | 26 |
| 15 | 30 | 26 |
| 16 | 30 | 26 |
| 17 | 30 | 26 |
| 18 | 30 | 26 |
| 19 | 30 | 26 |
| 20 | 30 | 26 |
| 21 | 30 | 26 |
| 22 | 30 | 26 |
| 23 | 30 | 26 |
| 24 | 30 | 26 |
| 25 | 30 | 26 |
| 26 | 30 | 26 |
| 27 | 30 | 26 |
| 28 | 30 | 26 |
| 29 | 30 | 25 |
| 30 | 30 | 25 |
| 31 | 30 | 25 |
How October really feels in Saint-Louis
Once humidity and wind are folded in, October averages 27 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Saint-Louis weather by month
How October compares with the rest of the year at a glance. October is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.
| 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 October
The sky is clear or mostly clear about 59% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 29%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 70 | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 71 | 72 | 72 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 69 |
| Cloudier (%) | 30 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 31 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 70 | 30 |
| 2 | 72 | 28 |
| 3 | 72 | 28 |
| 4 | 72 | 28 |
| 5 | 73 | 27 |
| 6 | 73 | 27 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 73 | 27 |
| 10 | 72 | 28 |
| 11 | 72 | 28 |
| 12 | 71 | 29 |
| 13 | 71 | 29 |
| 14 | 71 | 29 |
| 15 | 71 | 29 |
| 16 | 72 | 28 |
| 17 | 72 | 28 |
| 18 | 72 | 28 |
| 19 | 71 | 29 |
| 20 | 72 | 28 |
| 21 | 72 | 28 |
| 22 | 71 | 29 |
| 23 | 71 | 29 |
| 24 | 71 | 29 |
| 25 | 70 | 30 |
| 26 | 70 | 30 |
| 27 | 70 | 30 |
| 28 | 70 | 30 |
| 29 | 70 | 30 |
| 30 | 70 | 30 |
| 31 | 69 | 31 |
Chance of precipitation in October
Saint-Louis gets around 13 mm of rain over 2.1 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 7% and peaks near 13% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 |
| Rain chance (%) | |
|---|---|
| 1 | 13 |
| 2 | 12 |
| 3 | 12 |
| 4 | 11 |
| 5 | 11 |
| 6 | 10 |
| 7 | 10 |
| 8 | 10 |
| 9 | 10 |
| 10 | 9 |
| 11 | 9 |
| 12 | 9 |
| 13 | 9 |
| 14 | 8 |
| 15 | 8 |
| 16 | 8 |
| 17 | 7 |
| 18 | 7 |
| 19 | 6 |
| 20 | 6 |
| 21 | 5 |
| 22 | 5 |
| 23 | 4 |
| 24 | 4 |
| 25 | 3 |
| 26 | 3 |
| 27 | 2 |
| 28 | 2 |
| 29 | 2 |
| 30 | 1 |
| 31 | 1 |
Humidity in October
Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the oppressive band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 5 | 5 | 6 | 7 | 8 | 9 | 10 |
| Humid (%) | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Muggy (%) | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 15 | 16 | 18 | 19 | 21 | 23 | 25 | 26 | 28 | 30 | 31 | 32 | 33 | 34 | 35 | 35 | 35 | 36 |
| Oppressive (%) | 33 | 35 | 36 | 37 | 38 | 39 | 40 | 42 | 43 | 44 | 45 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 46 | 45 | 45 | 43 | 42 | 41 | 39 | 37 | 36 | 34 | 32 | 29 | 27 |
| Miserable (%) | 64 | 61 | 60 | 58 | 55 | 54 | 52 | 50 | 47 | 45 | 42 | 40 | 37 | 34 | 31 | 29 | 26 | 24 | 21 | 19 | 17 | 15 | 13 | 11 | 9 | 8 | 7 | 6 | 5 | 5 | 4 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 3 | 33 | 64 |
| 2 | 0 | 0 | 0 | 4 | 35 | 61 |
| 3 | 0 | 0 | 0 | 4 | 36 | 60 |
| 4 | 0 | 0 | 0 | 5 | 37 | 58 |
| 5 | 0 | 0 | 1 | 6 | 38 | 55 |
| 6 | 0 | 0 | 1 | 6 | 39 | 54 |
| 7 | 0 | 0 | 1 | 7 | 40 | 52 |
| 8 | 0 | 0 | 1 | 8 | 42 | 50 |
| 9 | 0 | 0 | 1 | 9 | 43 | 47 |
| 10 | 0 | 0 | 2 | 10 | 44 | 45 |
| 11 | 0 | 0 | 2 | 11 | 45 | 42 |
| 12 | 0 | 0 | 2 | 12 | 46 | 40 |
| 13 | 0 | 0 | 3 | 13 | 46 | 37 |
| 14 | 0 | 1 | 3 | 15 | 47 | 34 |
| 15 | 0 | 1 | 4 | 16 | 47 | 31 |
| 16 | 0 | 1 | 4 | 18 | 47 | 29 |
| 17 | 1 | 1 | 5 | 19 | 47 | 26 |
| 18 | 1 | 2 | 6 | 21 | 47 | 24 |
| 19 | 1 | 2 | 6 | 23 | 46 | 21 |
| 20 | 1 | 2 | 7 | 25 | 45 | 19 |
| 21 | 1 | 3 | 8 | 26 | 45 | 17 |
| 22 | 2 | 3 | 9 | 28 | 43 | 15 |
| 23 | 2 | 3 | 10 | 30 | 42 | 13 |
| 24 | 2 | 4 | 11 | 31 | 41 | 11 |
| 25 | 3 | 5 | 12 | 32 | 39 | 9 |
| 26 | 3 | 5 | 13 | 33 | 37 | 8 |
| 27 | 3 | 6 | 14 | 34 | 36 | 7 |
| 28 | 4 | 7 | 15 | 35 | 34 | 6 |
| 29 | 4 | 8 | 16 | 35 | 32 | 5 |
| 30 | 5 | 9 | 17 | 35 | 29 | 5 |
| 31 | 5 | 10 | 18 | 36 | 27 | 4 |
Wind in October
Winds average 18 km/h in October.
Across October, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 16 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 17 | light breeze |
| 6 | 17 | light breeze |
| 7 | 17 | light breeze |
| 8 | 17 | light breeze |
| 9 | 17 | light breeze |
| 10 | 17 | light breeze |
| 11 | 17 | light breeze |
| 12 | 17 | light breeze |
| 13 | 17 | light breeze |
| 14 | 17 | light breeze |
| 15 | 18 | light breeze |
| 16 | 18 | light breeze |
| 17 | 18 | light breeze |
| 18 | 18 | light breeze |
| 19 | 18 | light breeze |
| 20 | 18 | light breeze |
| 21 | 18 | light breeze |
| 22 | 18 | light breeze |
| 23 | 18 | light breeze |
| 24 | 18 | light breeze |
| 25 | 18 | light breeze |
| 26 | 18 | light breeze |
| 27 | 18 | light breeze |
| 28 | 19 | light breeze |
| 29 | 19 | light breeze |
| 30 | 19 | light breeze |
| 31 | 19 | light breeze |
Sunrise & sunset in October
Daylight runs from about 11 h 54 min at the start of October to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 30 minutes over October. Sunrise moves from 6:59 AM to 7:07 AM, and sunset from 6:51 PM to 6:32 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 |
| Sunrise (AM) | 6:59 | 6:59 | 6:59 | 7:00 | 7:00 | 7:00 | 7:00 | 7:00 | 7:00 | 7:01 | 7:01 | 7:01 | 7:01 | 7:02 | 7:02 | 7:02 | 7:02 | 7:03 | 7:03 | 7:03 | 7:03 | 7:04 | 7:04 | 7:04 | 7:05 | 7:05 | 7:05 | 7:06 | 7:06 | 7:06 | 7:07 |
| Sunset (PM) | 6:51 | 6:50 | 6:49 | 6:48 | 6:48 | 6:47 | 6:46 | 6:45 | 6:45 | 6:44 | 6:43 | 6:43 | 6:42 | 6:41 | 6:41 | 6:40 | 6:39 | 6:39 | 6:38 | 6:38 | 6:37 | 6:36 | 6:36 | 6:35 | 6:35 | 6:34 | 6:34 | 6:34 | 6:33 | 6:33 | 6:32 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 6:59 | 6:51 |
| 2 | 11.8 | 6:59 | 6:50 |
| 3 | 11.8 | 6:59 | 6:49 |
| 4 | 11.8 | 7:00 | 6:48 |
| 5 | 11.8 | 7:00 | 6:48 |
| 6 | 11.8 | 7:00 | 6:47 |
| 7 | 11.8 | 7:00 | 6:46 |
| 8 | 11.8 | 7:00 | 6:45 |
| 9 | 11.7 | 7:00 | 6:45 |
| 10 | 11.7 | 7:01 | 6:44 |
| 11 | 11.7 | 7:01 | 6:43 |
| 12 | 11.7 | 7:01 | 6:43 |
| 13 | 11.7 | 7:01 | 6:42 |
| 14 | 11.7 | 7:02 | 6:41 |
| 15 | 11.6 | 7:02 | 6:41 |
| 16 | 11.6 | 7:02 | 6:40 |
| 17 | 11.6 | 7:02 | 6:39 |
| 18 | 11.6 | 7:03 | 6:39 |
| 19 | 11.6 | 7:03 | 6:38 |
| 20 | 11.6 | 7:03 | 6:38 |
| 21 | 11.6 | 7:03 | 6:37 |
| 22 | 11.5 | 7:04 | 6:36 |
| 23 | 11.5 | 7:04 | 6:36 |
| 24 | 11.5 | 7:04 | 6:35 |
| 25 | 11.5 | 7:05 | 6:35 |
| 26 | 11.5 | 7:05 | 6:34 |
| 27 | 11.5 | 7:05 | 6:34 |
| 28 | 11.5 | 7:06 | 6:34 |
| 29 | 11.5 | 7:06 | 6:33 |
| 30 | 11.4 | 7:06 | 6:33 |
| 31 | 11.4 | 7:07 | 6:32 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 6.1 kWh/m².
For context, solar energy here swings from a low near 5 kWh/m² to a high of 7.37 kWh/m² in May across the year — October's 6.1 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.9 | 5.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.2 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.2 | Intense |
| 8 | 6.2 | Intense |
| 9 | 6.2 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.1 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.0 | Intense |
| 20 | 6.0 | Intense |
| 21 | 6.0 | Intense |
| 22 | 6.0 | Intense |
| 23 | 6.0 | Intense |
| 24 | 6.0 | Intense |
| 25 | 6.0 | Bright |
| 26 | 6.0 | Bright |
| 27 | 6.0 | Bright |
| 28 | 5.9 | Bright |
| 29 | 5.9 | Bright |
| 30 | 5.9 | Bright |
| 31 | 5.9 | Bright |
Hazard calendar for Saint-Louis
In October, Saint-Louis sits inside its atlantic hurricane and 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 October a good time to visit Saint-Louis?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Saint-Louis for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Saint-Louis in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Saint-Louis sees daytime highs around 30°C and nights near 26°C. Pack light clothes and sun protection.
Sea temperature near Saint-Louis in October
The nearest coast averages about 28°C in October — 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 October
Clear-sky midday UV in October peaks 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 October
Average fine-particle pollution (PM2.5) through the year — so you can see where October 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).