Saint-Louis in september: average Weather, Temperature and Climate
Weather in Saint-Louis in september 2025
The weather in Saint-Louis in the month of september comes from statistical datas on the past years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 8
Weather at 6am
81°F
Clear/Sunny
49% of time
25%
11%
7%
Weather at 12pm
92°F
Clear/Sunny
57% of time
25%
9%
4%
Weather at 6pm
90°F
Clear/Sunny
45% of time
22%
14%
13%
Weather at 3am
81°F
51%
24%
14%
7%
Evolution of daily average temperature and precipitation in Saint-Louis in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Saint-Louis in september.
The climate of Saint-Louis in september is good
The climate in september in Saint-Louis is wet (with 4.6in of precipitation over 7 days). The weather is better from the previous month since in august it receives an average of 5.8in of precipitation over 7 days.
The climate is very hot around this city in september. The thermometer averaged maximum of 95°F. In the morning the temperature drops to 81°F. Thus, the mean temperature average on this month of september in Saint-Louis is 88°F. Note that these seasonal averages are in contrast with those observed in Saint-Louis in september with a maximum record of 110°F in 2017 and a minimum record of 72°F in 2020. You can plan to have 86°F or more across the month.
In september in Saint-Louis, the days on average last 12:14. The sun rises at 06:54 and sunset is at 19:08.
With proper weather, september is okay (but not good) to go there.
Seasonal average climate and temperature of Saint-Louis in september
Check below seasonal norms These datas are compiled from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 88°F | ||||
| Highest temperature | 95°F | ||||
| Lowest temperature | 81°F | ||||
| Highest record temperature | 110°F (2017) | ||||
| Lowest record temperature | 72°F (2020) | ||||
| Number of days at +86°F | 29 day(s) (97%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 83°F | ||||
| Lowest sea temperature | 82°F | ||||
| Highest sea temperature | 85°F | ||||
| Wind | |||||
| Wind speed | 16km/h | ||||
| Wind temperature | 81°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.6in | ||||
| Number of days with rainfall | 7 day(s) (24%) | ||||
| Record daily rainfall | 4.3in (2010) | ||||
| Other climate data | |||||
| Humidity | 83% | ||||
| Visibility | 9.65km | ||||
| Cloud cover | 25% | ||||
| UV index | 8 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:54 | ||||
| Time of sunset | 19:08 | ||||
| Length of day | 12:14 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Saint-Louis in september 2024:
79°F to 94°F
79°F to 94°F
79°F to 94°F
79°F to 94°F
79°F to 86°F
77°F to 83°F
76°F to 94°F
77°F to 94°F
79°F to 97°F
81°F to 97°F
81°F to 97°F
81°F to 90°F
79°F to 99°F
79°F to 95°F
81°F to 97°F
81°F to 95°F
81°F to 92°F
81°F to 88°F
77°F to 92°F
77°F to 94°F
79°F to 90°F
81°F to 95°F
81°F to 97°F
81°F to 99°F
77°F to 95°F
79°F to 81°F
83°F to 99°F
81°F to 101°F
83°F to 95°F
83°F to 92°F
Map: other cities in Senegal in september
Cities near Saint-Louis:
| Louga in september | good weather |
| Lompoul in september | good weather |
| Dakar in september | good weather |
| Somone in september | good weather |
| Saly Portudal in september | good weather |
| M'bour in september | good weather |
| Joal Fadiouth in september | good weather |
| Sokone in september | good weather |
| Saloum Delta National Park in september | tolerable weather |
| Koungheul in september | good weather |
| Kafountine in september | tolerable weather |
| Matam in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Saint-Louis
perfect weather
good
tolerable
bad
very bad
Weather data for Saint-Louis in september:
Weather data for Saint-Louis for september are derived from an average of the weather forecast since 2009 in Saint-Louis. There is a margin of error and these forecasts are to be considered as general information only. The weather in Saint-Louis can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Saint-Louis.