Somme Bay in september: average Weather, Temperature and Climate
Weather in the Somme Bay in september 2025
The weather in Saint Valery (Somme Bay) in the month of september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
56°F
Clear/Sunny
28% of time
22%
18%
17%
Weather at 12pm
67°F
Clear/Sunny
38% of time
25%
22%
12%
Weather at 6pm
61°F
Clear/Sunny
38% of time
24%
22%
12%
Weather at 3am
56°F
29%
25%
18%
17%
Evolution of daily average temperature and precipitation in the Somme Bay in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in the Somme Bay in september.
The climate of Somme Bay in september is good
The climate in september in Saint Valery (Somme Bay) is relatively dry (with 2.7in of precipitation over 5 days). It should be noted an improvement from the previous month since in august it receives an average of 3.9in of precipitation over 6 days.
The climate good around this city this month. The thermometer averaged maximum of 68°F. In the morning the temperature drops to 56°F. Thus, the mean temperature average on this month of september in Saint Valery (Somme Bay) is 61°F. These temperatures are far removed from those records observed in Saint Valery (Somme Bay) in september with a maximum record of 86°F in 2021 and a minimum record of 43°F in 2018. You can expect to have about 21 days with temperatures up to 65°F, or 70% of the month.
In september in Saint Valery (Somme Bay), the days on average last 12:38. Sunrise is at 06:29 and sunset is at 19:07.
With a good weather, the month of september is a good month to go there.
Seasonal average climate and temperature of Somme Bay in september
Check below seasonal norms These statistics are compiled from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 61°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 86°F (2021) | ||||
| Lowest record temperature | 43°F (2018) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 21 day(s) (70%) | ||||
| Sea temperature | |||||
| Average sea temperature | 65°F | ||||
| Lowest sea temperature | 63°F | ||||
| Highest sea temperature | 67°F | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 54°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.7in | ||||
| Number of days with rainfall | 5 day(s) (15%) | ||||
| Record daily rainfall | 1.5in (2010) | ||||
| Other climate data | |||||
| Humidity | 89% | ||||
| Visibility | 8.94km | ||||
| Cloud cover | 40% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:29 | ||||
| Time of sunset | 19:07 | ||||
| Length of day | 12:38 | ||||
| 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 the Somme Bay in september 2024:
68°F to 83°F
65°F to 68°F
63°F to 68°F
61°F to 67°F
59°F to 63°F
61°F to 65°F
63°F to 79°F
58°F to 63°F
61°F to 63°F
59°F to 63°F
54°F to 58°F
50°F to 58°F
54°F to 61°F
52°F to 59°F
54°F to 63°F
58°F to 65°F
59°F to 65°F
59°F to 74°F
59°F to 74°F
58°F to 72°F
59°F to 72°F
63°F to 67°F
59°F to 63°F
59°F to 61°F
58°F to 61°F
59°F to 63°F
52°F to 58°F
49°F to 54°F
47°F to 56°F
56°F to 61°F
Map: other cities in Picardy in september
Cities near Somme Bay:
| Saint-Valery-sur-Somme in september | good weather |
| Le Crotoy in september | good weather |
| Cayeux-sur-Mer in september | good weather |
| Friville-Escarbotin in september | good weather |
| Saint-Quentin-en-Tourmont in september | good weather |
| Ault in september | good weather |
| Quend Plage in september | good weather |
| Fort-Mahon-Plage in september | good weather |
| Mers-les-Bains in september | good weather |
| Abbeville in september | good weather |
| Flixecourt in september | good weather |
| Doullens in september | good weather |
Click over cities on the map for information about the weather in september.
Somme Bay
perfect weather
good
tolerable
bad
very bad
Weather data for Somme Bay in september:
Weather data for Somme Bay for september are derived from an average of the weather forecast since 2009 in the Somme Bay. There is a margin of error and these forecasts are to be considered as general information only. The weather in the Somme Bay 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 the Somme Bay.