September weather forecastSan Simonito, Mexico
September
Weather in September
The first month of the autumn, September, is still a comfortable month in San Simonito, Mexico, with an average temperature varying between 18.2°C (64.8°F) and 9.7°C (49.5°F).Temperature
September commences with an average high-temperature of a still refreshing 18.2°C (64.8°F), showing little deviation from August's 18.8°C (65.8°F). San Simonito sees an average low-temperature of 9.7°C (49.5°F) during September.Humidity
The most humid month is September, with an average relative humidity of 86%.Rainfall
In San Simonito, in September, during 28 rainfall days, 224mm (8.82") of precipitation is typically accumulated. Throughout the year, in San Simonito, there are 211.5 rainfall days, and 1407mm (55.39") of precipitation is accumulated.Daylight
The average length of the day in September in San Simonito is 12h and 14min.On the first day of September in San Simonito, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:27 pm CST.
Sunshine
In September, the average sunshine is 8.3h.UV index
September and October, with an average maximum UV index of 3, are months with the lowest UV index in San Simonito. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Simonito, Mexico
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).
Average pressure in September
San Simonito, Mexico
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).
Average wind speed in September
San Simonito, Mexico
- Average wind speed in September: 5.1km/h
The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity in September
San Simonito, Mexico
- Average humidity in September: 86%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (47%).
Average rainfall in September
San Simonito, Mexico
- Average rainfall in September: 224mm
The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).
Average rainfall days in September
San Simonito, Mexico
- Average rainfall days in September: 28 days
The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).
Average daylight in September /
Average sunshine in September
San Simonito, Mexico
- Average daylight in September: 12h and 12min
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 18min
The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).
Average sunshine days in September
San Simonito, Mexico
- Average sunshine days in September: 1.1 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).
Average UV index in September
San Simonito, Mexico
- Average UV index in September: 3
The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are September and October (UV index 3).
Average cloud cover in September
San Simonito, Mexico
- Average cloud cover in September: 46
The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).
Average visibility in September
San Simonito, Mexico
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).
