Temperatures in September
It's warm in September in Gap with an average temperature of 25°C. Temperatures this month range from a low of 20°C to a high of 30°C. At night, you can expect temperatures between 13°C and 19°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Gap in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Gap with hot temperatures, averaging around 28°C during the day and nights close to 18°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature drops to around 26°C, with nights close to 16°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in Gap will be around 24°C, with nights close to 14°C. A shower might show up, but overall the weather will be dry and sunny.
Precipitation in September
In September, there is an average of 73 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 25% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Gap. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Gap in September |
London | ||
|---|---|---|---|
 Average Temperature |
25°C | 20°C | |
 High Temp |
30°C | 22°C | |
| Low Temp |
20°C | 17°C | |
 Total Precipitation |
73 mm | 44 mm | |
| Rainy Days |
8 days | 8 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Gap?
Want nice weather? Then September is a great time to be in Gap. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Gap in September
With 36°C, Gap hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 14°C in 2018. The extreme night temperatures ranged from a low of 4°C to a high of 25°C.
Check out the climate of Gap for all months and discover the best travel time
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Daily Temperature in September in Gap
This chart shows the average daily temperatures, both day and night, for each day in September in Gap, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Gap
The chart below shows the average daily precipitation in September for Gap, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 8 days of rain in Gap.
Daily UV Index in September in Gap
This chart shows the average daily UV index in September in Gap, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Gap Over the Years
This chart shows the average temperature in September in Gap, measured in degrees Celsius, over the past years.
Total Precipitation in September in Gap Over the Years
This chart shows the average precipitation in September in Gap, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Gap
Click on a specific day in September for detailed info on the typical weather on that day in Gap. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Gap
Have you been to Gap in September?
Share your weather experience in September in Gap.
Average Weather in Gap by Month
Click on a month below to see detailed weather info for Gap. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
