Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's advent presents an average high-temperature of a refreshing 19.7°C (67.5°F), indicating a slight variation from the conditions of the previous month. Throughout September, the nighttime temperature averages to a fresh 10.3°C (50.5°F).Humidity
With an average relative humidity of 79%, September is the most humid month.Rainfall
In Dos Ríos, in September, it is raining for 19.6 days, with typically 62mm (2.44") of accumulated precipitation. Throughout the year, there are 134.4 rainfall days, and 455mm (17.91") of precipitation is accumulated.Snowfall
February through November are months without snowfall.Daylight
In Dos Ríos, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 6:22 am and sunset at 6:51 pm. On the last day of September, sunrise is at 6:28 am and sunset at 6:26 pm CST.
Sunshine
The average sunshine in September is 8.9h.UV index
The months with the lowest UV index are January, June through December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Dos Ríos have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What are the months with the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Dos Ríos, Mexico
- Average high temperature in September: 19.7°C
The warmest months (with the highest average high temperature) are April and May (24.3°C).
The month with the lowest average high temperature is January (18°C).
- Average low temperature in September: 10.3°C
The month with the highest average low temperature is May (12.3°C).
The coldest month (with the lowest average low temperature) is January (6°C).
Average pressure in September
Dos Ríos, Mexico
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is January (1018.4mbar).
The month with the lowest atmospheric pressure is May (1014.1mbar).
Average wind speed in September
Dos Ríos, Mexico
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is March (7.8km/h).
The calmest month (with the lowest average wind speed) is July (6.1km/h).
Average humidity in September
Dos Ríos, Mexico
- Average humidity in September: 79%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is April (43%).
Average rainfall in September
Dos Ríos, Mexico
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is July (110mm).
The driest month (with the least rainfall) is December (4mm).
Average rainfall days in September
Dos Ríos, Mexico
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is December (3.1 days).
Average snowfall days in September
Dos Ríos, Mexico
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Dos Ríos, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are May and June (Average sunshine: 10h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 48min).
Average sunshine days in September
Dos Ríos, Mexico
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is December (23.2 days).
The month with the least sunshine days is July (3.7 days).
Average UV index in September
Dos Ríos, Mexico
- Average UV index in September: 4
The months with the highest UV index are February, March, April and May (UV index 5).
The months with the lowest UV index are January, June, July, August, September, October, November and December (UV index 4).
Average cloud cover in September
Dos Ríos, Mexico
- Average cloud cover in September: 43
The month with the most cloud cover is September (Cloud cover 43).
The months with the least cloud cover are February and March (Cloud cover 12).
Average visibility in September
Dos Ríos, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May and December (10km).
The months with the lowest visibility are July, August, September and October (8km).
