Temperatures in September
It's hot in September in Hillister with an average temperature of 32°C. Temperatures this month range from a low of 30°C to a high of 34°C. At night, you can expect temperatures between 18°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Hillister 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 Hillister with hot temperatures, averaging around 33°C during the day and nights close to 23°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature drops to around 32°C, with nights close to 22°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 Hillister will be around 31°C, with nights close to 21°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 87 mm of precipitation, spread over 10 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
The average precipitation chance is 32% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Hillister. 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.
Hillister in September |
London | ||
|---|---|---|---|
 Average Temperature |
32°C | 20°C | |
 High Temp |
34°C | 22°C | |
| Low Temp |
30°C | 17°C | |
 Total Precipitation |
87 mm | 44 mm | |
| Rainy Days |
10 days | 8 days | |
August
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Hillister?
September is a great month to be in Hillister for sunny weather. You’ll get high temperatures and not too much rain this month.
The hurricane season in Hillister runs from June to November.
Temperature records for Hillister in September
With 39°C, Hillister hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 23°C in 2020. The extreme night temperatures ranged from a low of 8°C to a high of 28°C.
Check out the climate of Hillister for all months and discover the best travel time
Daily Temperature in September in Hillister
This chart shows the average daily temperatures, both day and night, for each day in September in Hillister, 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 Hillister
The chart below shows the average daily precipitation in September for Hillister, 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 10 days of rain in Hillister.
Daily UV Index in September in Hillister
This chart shows the average daily UV index in September in Hillister, 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 Hillister Over the Years
This chart shows the average temperature in September in Hillister, measured in degrees Celsius, over the past years.
Total Precipitation in September in Hillister Over the Years
This chart shows the average precipitation in September in Hillister, 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 Hillister
Click on a specific day in September for detailed info on the typical weather on that day in Hillister. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Hillister
Have you been to Hillister in September?
Share your weather experience in September in Hillister.
Average Weather in Hillister by Month
Click on a month below to see detailed weather info for Hillister. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Hillister for all months at once
