Temperatures in September
It's hot in September in Rio Grande City with an average temperature of 35°C. Temperatures this month range from a low of 33°C to a high of 38°C. At night, you can expect temperatures between 22°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Rio Grande City 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 Rio Grande City with hot temperatures, averaging around 36°C during the day and nights close to 25°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature stays the same at 36°C, with nights close to 25°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Rio Grande City will be around 35°C, with nights close to 24°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in September
In September, there is an average of 124 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the East.
The average precipitation chance is 31% 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 Rio Grande City. 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.
Rio Grande City in September |
London | ||
|---|---|---|---|
 Average Temperature |
35°C | 20°C | |
 High Temp |
38°C | 22°C | |
| Low Temp |
33°C | 17°C | |
 Total Precipitation |
124 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
August
UV index
The UV index is a maximum of 7 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 Rio Grande City?
After some sun? Then September isn’t the best time to be in Rio Grande City. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Rio Grande City runs from June to November.
Temperature records for Rio Grande City in September
With 41°C, Rio Grande City hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 25°C in 2016. The extreme night temperatures ranged from a low of 11°C to a high of 29°C.
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Daily Temperature in September in Rio Grande City
This chart shows the average daily temperatures, both day and night, for each day in September in Rio Grande City, 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 Rio Grande City
The chart below shows the average daily precipitation in September for Rio Grande City, 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 9 days of rain in Rio Grande City.
Daily UV Index in September in Rio Grande City
This chart shows the average daily UV index in September in Rio Grande City, 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 Rio Grande City Over the Years
This chart shows the average temperature in September in Rio Grande City, measured in degrees Celsius, over the past years.
Total Precipitation in September in Rio Grande City Over the Years
This chart shows the average precipitation in September in Rio Grande City, 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 Rio Grande City
Click on a specific day in September for detailed info on the typical weather on that day in Rio Grande City. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Rio Grande City
Have you been to Rio Grande City in September?
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Average Weather in Rio Grande City by Month
Click on a month below to see detailed weather info for Rio Grande City. 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 Rio Grande City for all months at once
