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 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
Weather in September
Temperature
As September takes hold, the average high-temperature is a still warm 25.1°C (77.2°F), nearly mirroring that of the previous month. During September nights, San Sebastián el Grande witnesses a consistent average temperature of 14.4°C (57.9°F).Humidity
With an average relative humidity of 83%, September is the most humid month.Rainfall
In San Sebastián el Grande, in September, during 22.7 rainfall days, 113mm (4.45") of precipitation is typically accumulated. In San Sebastián el Grande, during the entire year, the rain falls for 136.3 days and collects up to 630mm (24.8") of precipitation.Daylight
In San Sebastián el Grande, the average length of the day in September is 12h and 15min.On the first day of September, sunrise is at 6:37 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:42 pm CST.
Sunshine
In San Sebastián el Grande, Mexico, the average sunshine in September is 9h.UV index
The months with the lowest UV index in San Sebastián el Grande, Mexico, are January, February, August through December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What is the average September temperature in San Sebastián el Grande?
What is the most humid month in San Sebastián el Grande?
What is the average humidity in September in San Sebastián el Grande?
How much does it rain in San Sebastián el Grande in September?
How many hours of daylight does San Sebastián el Grande have in September?
When is the sunrise / sunset in September in San Sebastián el Grande?
How many hours of sunshine does San Sebastián el Grande have in September?
What is the month with the lowest UV index in San Sebastián el Grande?
What is the UV index reading in September in San Sebastián el Grande?
Average temperature in September
San Sebastián el Grande, Mexico
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is May (32.3°C).
The month with the lowest average high temperature is January (23.4°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is June (17.8°C).
The coldest month (with the lowest average low temperature) is January (9.3°C).
Average pressure in September
San Sebastián el Grande, Mexico
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).
Average wind speed in September
San Sebastián el Grande, Mexico
- Average wind speed in September: 5.3km/h
The windiest month (with the highest average wind speed) is April (8.1km/h).
The calmest month (with the lowest average wind speed) is July (4.8km/h).
Average humidity in September
San Sebastián el Grande, Mexico
- Average humidity in September: 83%
The month with the highest relative humidity is September (83%).
The month with the lowest relative humidity is April (36%).
Average rainfall in September
San Sebastián el Grande, Mexico
- Average rainfall in September: 113mm
The wettest month (with the highest rainfall) is July (169mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in September
San Sebastián el Grande, Mexico
- Average rainfall days in September: 22.7 days
The month with the highest number of rainy days is July (26.9 days).
The month with the least rainy days is April (1.8 days).
Average daylight in September /
Average sunshine in September
San Sebastián el Grande, Mexico
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are January, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 8h and 42min).
Average sunshine days in September
San Sebastián el Grande, Mexico
- Average sunshine days in September: 6.1 days
The month with the most sunshine days is April (27.8 days).
The month with the least sunshine days is July (2.5 days).
Average UV index in September
San Sebastián el Grande, Mexico
- Average UV index in September: 5
The month with the highest UV index is May (UV index 7).
The months with the lowest UV index are January, February, August, September, October, November and December (UV index 5).
Average cloud cover in September
San Sebastián el Grande, Mexico
- Average cloud cover in September: 44
The months with the most cloud cover are July and September (Cloud cover 44).
The months with the least cloud cover are March and April (Cloud cover 9).
Average visibility in September
San Sebastián el Grande, Mexico
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (7km).
San Sebastián el Grande, Mexico
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