September weather forecastSantiago Comaltepec, Mexico
September
Weather in September
September, the first month of the autumn in Santiago Comaltepec, is also an agreeable month, with an average temperature ranging between max 21.1°C (70°F) and min 13°C (55.4°F).Temperature
Santiago Comaltepec's shift into September sets the average high-temperature at a still pleasant 21.1°C (70°F), a figure that deviates only slightly from August's 22.2°C (72°F). An average nighttime temperature of 13°C (55.4°F) is recorded during September.Humidity
With an average relative humidity of 86%, September is the most humid month.Rainfall
In Santiago Comaltepec, in September, it is raining for 28.8 days, with typically 200mm (7.87") of accumulated precipitation. In Santiago Comaltepec, during the entire year, the rain falls for 222.9 days and collects up to 1066mm (41.97") of precipitation.Daylight
In September, the average length of the day in Santiago Comaltepec, Mexico, is 12h and 14min.On the first day of the month, sunrise is at 6:12 am and sunset at 6:39 pm. On the last day of September, sunrise is at 6:16 am and sunset at 6:15 pm CST.
Sunshine
The average sunshine in September in Santiago Comaltepec is 8.3h.UV index
The months with the highest UV index are February through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago Comaltepec, Mexico
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is April (26.8°C).
The month with the lowest average high temperature is November (20.6°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is June (13.3°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).
Average pressure in September
Santiago Comaltepec, Mexico
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is January (1017.1mbar).
The month with the lowest atmospheric pressure is May (1012.9mbar).
Average wind speed in September
Santiago Comaltepec, Mexico
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is November (7.3km/h).
The calmest months (with the lowest average wind speed) are May and June (5.3km/h).
Average humidity in September
Santiago Comaltepec, 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 (62%).
Average rainfall in September
Santiago Comaltepec, Mexico
- Average rainfall in September: 200mm
The wettest month (with the highest rainfall) is June (203mm).
The driest month (with the least rainfall) is December (5mm).
Average rainfall days in September
Santiago Comaltepec, Mexico
- Average rainfall days in September: 28.8 days
The month with the highest number of rainy days is September (28.8 days).
The month with the least rainy days is February (7 days).
Average daylight in September /
Average sunshine in September
Santiago Comaltepec, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in September
Santiago Comaltepec, Mexico
- Average sunshine days in September: 0.4 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is September (0.4 days).
Average UV index in September
Santiago Comaltepec, Mexico
- Average UV index in September: 5
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, October, November and December (UV index 4).
Average cloud cover in September
Santiago Comaltepec, Mexico
- Average cloud cover in September: 54
The month with the most cloud cover is September (Cloud cover 54).
The month with the least cloud cover is March (Cloud cover 21).
Average visibility in September
Santiago Comaltepec, Mexico
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April and May (9km).
The months with the lowest visibility are July, August, September, October and November (7km).
