Temperatures in September
It's hot in September in Gro with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 32°C. At night, you can expect temperatures between 23°C and 23°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Gro 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 Gro with hot temperatures, averaging around 30°C during the day and nights close to 23°C. Plenty of days with a chance of precipitation.
Mid-September
By mid-September, the average daytime temperature rises to around 31°C, with nights close to 23°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of September
By the end of September, the average daytime temperature in Gro will be around 31°C, with nights close to 23°C. There’s a significant chance of many days with precipitation.
Precipitation in September
In September, there is an average of 161 mm of precipitation, spread over 20 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
The average precipitation chance this month is 65% per day. Though that seems frequent, there are also a few days with lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Gro. 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.
Gro in September |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 20°C | |
 High Temp |
32°C | 22°C | |
| Low Temp |
29°C | 17°C | |
 Total Precipitation |
161 mm | 44 mm | |
| Rainy Days |
20 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 Gro?
After some sun? Then September isn’t the best time to be in Gro. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Gro in September
With 34°C, Gro hit the highest temperature in the last 10 years in September 2015. The lowest daytime temperature in this month was 25°C in 2022. The extreme night temperatures ranged from a low of 19°C to a high of 26°C.
Check out the climate of Gro for all months and discover the best travel time
Daily Temperature in September in Gro
This chart shows the average daily temperatures, both day and night, for each day in September in Gro, 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 Gro
The chart below shows the average daily precipitation in September for Gro, 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 20 days of rain in Gro.
Daily UV Index in September in Gro
This chart shows the average daily UV index in September in Gro, 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 Gro Over the Years
This chart shows the average temperature in September in Gro, measured in degrees Celsius, over the past years.
Total Precipitation in September in Gro Over the Years
This chart shows the average precipitation in September in Gro, 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 Gro
Click on a specific day in September for detailed info on the typical weather on that day in Gro. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Gro
Have you been to Gro in September?
Share your weather experience in September in Gro.
Average Weather in Gro by Month
Click on a month below to see detailed weather info for Gro. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
