United StatesAverage weather for Geismar in September
It's hot in September in Geismar with an average temperature of 32°C. Temperatures this month range from a low of 29°C to a high of 34°C. At night, you can expect temperatures between 19°C and 25°C.
Start of September
The month of September starts in Geismar with hot temps, averaging around 34°C during the day and nights around 24°C. There are plenty of days with a good chance of precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps drop to around 32°C, with nights around 23°C. There’s a high chance of precipitation during this time. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in Geismar is around 31°C, while nighttime temps are about 21°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
In September, there is an average of 138 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Geismar in September |
New York | ||
|---|---|---|---|
 Average temperature |
32°C | 27°C | |
 Max. temperature |
34°C | 31°C | |
| Min. temperature |
29°C | -5°C | |
 Total precipitation |
138 mm | 57 mm | |
| Rainy days |
9 days | 9 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 Geismar?
Looking for sun? September isn’t a good month to be in Geismar. The temperature is nice, but there’s too much chance of rain.
The hurricane season in Geismar runs from June to November.
Temperature records
With 38°C in 2023, Geismar reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 22°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 11°C to a highest value of 28°C.
Check out the climate of Geismar for all months and discover the best travel time
Daily Temperature in September in Geismar
This chart shows the average daily high and low temperatures in September for Geismar, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Geismar
The chart below shows the average daily precipitation in September for Geismar, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 9 days of precipitation in Geismar.
Daily UV index in September in Geismar
This chart shows the average daily UV index in September in Geismar, 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 Geismar over the years
This chart shows the average temperature in September in Geismar, measured in degrees Celsius, over the past few years.
Total precipitation in September in Geismar over the years
This chart shows the average precipitation in September in Geismar, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Geismar
Click on any day in September to get detailed info about the usual weather on that day in Geismar. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Geismar
Have you been to Geismar in September?
Share your weather experience in September in Geismar.
Average weather in Geismar by month
Click on a month below to see detailed weather info for Geismar. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
