Bayonne in september: average Weather, Temperature and Climate
Weather in Bayonne in september 2025
The weather in Bayonne (Pays basque) 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 by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 6
Weather at 6am
63°F
Clear/Sunny
42% of time
20%
19%
9%
Weather at 12pm
74°F
Clear/Sunny
53% of time
20%
19%
6%
Weather at 6pm
68°F
Clear/Sunny
50% of time
22%
16%
7%
Weather at 3am
63°F
44%
22%
20%
7%
Evolution of daily average temperature and precipitation in Bayonne in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Bayonne in september.
The climate of Bayonne in september is good
The weather in september in Bayonne (Pays basque) is relatively dry (with 3.5in 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 rainfall over 6 days.
The climate quite comfortable in this location september. The high seasonal norm is 74°F. On average, the recorded minimum temperature is 63°F. Thus, the mean temperature average on this month of september in Bayonne (Pays basque) is 68°F. Note that these seasonal averages are in contrast with those observed in Bayonne (Pays basque) in the month of september with a maximum record of 97°F in 2021 and a minimum record of 47°F in 2009.
Day length in Bayonne (Pays basque) in september is 12:31. Sunrise is at 06:45 and sunset is at 19:16.
With a good weather, september is a good month to go in that area.
Seasonal average climate and temperature of Bayonne in september
Check below seasonal norms These statistics are set from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 68°F | ||||
| Highest temperature | 74°F | ||||
| Lowest temperature | 63°F | ||||
| Highest record temperature | 97°F (2021) | ||||
| Lowest record temperature | 47°F (2009) | ||||
| Number of days at +86°F | 1 day(s) (3%) | ||||
| Number of days at +65°F | 29 day(s) (97%) | ||||
| Sea temperature | |||||
| Average sea temperature | 70°F | ||||
| Lowest sea temperature | 66°F | ||||
| Highest sea temperature | 74°F | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 61°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.5in | ||||
| Number of days with rainfall | 5 day(s) (16%) | ||||
| Record daily rainfall | 2.1in (2020) | ||||
| Other climate data | |||||
| Humidity | 83% | ||||
| Visibility | 9.52km | ||||
| Cloud cover | 32% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:45 | ||||
| Time of sunset | 19:16 | ||||
| Length of day | 12:31 | ||||
| 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 Bayonne in september 2024:
65°F to 74°F
63°F to 72°F
63°F to 65°F
61°F to 68°F
61°F to 65°F
58°F to 63°F
56°F to 70°F
59°F to 68°F
61°F to 70°F
61°F to 67°F
61°F to 67°F
58°F to 63°F
58°F to 63°F
49°F to 68°F
50°F to 63°F
52°F to 65°F
54°F to 65°F
56°F to 68°F
59°F to 76°F
63°F to 72°F
59°F to 74°F
59°F to 67°F
54°F to 67°F
56°F to 70°F
61°F to 77°F
65°F to 74°F
56°F to 59°F
54°F to 61°F
54°F to 74°F
58°F to 70°F
Map: other cities in the French Basque country in september
Cities near Bayonne:
| Anglet in september | good weather |
| Boucau in september | good weather |
| Biarritz in september | good weather |
| Arcangues in september | good weather |
| Ustaritz in september | good weather |
| Bidart in september | good weather |
| Briscous in september | good weather |
| Guethary in september | good weather |
| Cambo-les-Bains in september | good weather |
| Saint-Pee-sur-Nivelle in september | good weather |
| Souraïde in september | good weather |
| Espelette in september | good weather |
Click over cities on the map for information about the weather in september.
Bayonne
perfect weather
good
tolerable
bad
very bad
Weather data for Bayonne in september:
Weather data for Bayonne for september are derived from an average of the weather forecast since 2009 in Bayonne. There is a margin of error and these forecasts are to be considered as general information only. The weather in Bayonne 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 Bayonne.