Temperatures in September
It's cool to moderate in September in Gran with an average temperature of 15°C. Temperatures this month range from a low of 13°C to a high of 18°C. At night, you can expect temperatures between 7°C and 10°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Gran 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 Gran with cool temperatures, averaging around 17°C during the day and nights close to 9°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature drops to around 15°C, with nights close to 9°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Gran will be around 15°C, with nights close to 8°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 81 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 45% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Gran. 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.
Gran in September |
London | ||
|---|---|---|---|
 Average Temperature |
15°C | 20°C | |
 High Temp |
18°C | 22°C | |
| Low Temp |
13°C | 17°C | |
 Total Precipitation |
81 mm | 44 mm | |
| Rainy Days |
13 days | 8 days | |
August
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Gran?
Looking for sun and warm weather? Then September isn’t the best time to be in Gran. The temperature is too low this month for a warm stay.
Temperature records for Gran in September
With 25°C, Gran hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 5°C in 2019. The extreme night temperatures ranged from a low of 0°C to a high of 15°C.
Check out the climate of Gran for all months and discover the best travel time
Curious about the climate in other parts of Norway? Check out the weather and climate in places like Oslo, Lofoten, Vesterålen, or have a look at other destinations in Norway.
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Daily Temperature in September in Gran
This chart shows the average daily temperatures, both day and night, for each day in September in Gran, 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 Gran
The chart below shows the average daily precipitation in September for Gran, 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 13 days of rain in Gran.
Daily UV Index in September in Gran
This chart shows the average daily UV index in September in Gran, 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 Gran Over the Years
This chart shows the average temperature in September in Gran, measured in degrees Celsius, over the past years.
Total Precipitation in September in Gran Over the Years
This chart shows the average precipitation in September in Gran, 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 Gran
Click on a specific day in September for detailed info on the typical weather on that day in Gran. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Gran
Have you been to Gran in September?
Share your weather experience in September in Gran.
Average Weather in Gran by Month
Click on a month below to see detailed weather info for Gran. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
