September weather forecastSiltepec, Mexico
September
Weather in September
The first month of the autumn, September, is still a warm month in Siltepec, Mexico, with an average temperature fluctuating between 15.3°C (59.5°F) and 26.2°C (79.2°F).Temperature
The average high-temperature in September, at a still moderately hot 26.2°C (79.2°F), reveals a modest deviation from August's 27.3°C (81.1°F). September in Siltepec witnesses an average low-temperature hovering around a moderate 15.3°C (59.5°F).Humidity
The most humid month is September, with an average relative humidity of 84%.Rainfall
In September, the rain falls for 26.9 days. Throughout September, 212mm (8.35") of precipitation is accumulated. In Siltepec, during the entire year, the rain falls for 204.7 days and collects up to 1183mm (46.57") of precipitation.Daylight
In September, the average length of the day is 12h and 13min.On the first day of September, sunrise is at 5:56 am and sunset at 6:21 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 5:58 pm CST.
Sunshine
In September, the average sunshine is 9.5h.UV index
January, February, August through December, with an average maximum UV index of 5, are months with the lowest UV index in Siltepec. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siltepec, Mexico
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is April (29.6°C).
The month with the lowest average high temperature is January (23.7°C).
- Average low temperature in September: 15.3°C
The month with the highest average low temperature is May (17.1°C).
The coldest month (with the lowest average low temperature) is January (11.4°C).
Average pressure in September
Siltepec, Mexico
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).
Average wind speed in September
Siltepec, Mexico
- Average wind speed in September: 4km/h
The windiest month (with the highest average wind speed) is July (6.6km/h).
The calmest month (with the lowest average wind speed) is September (4km/h).
Average humidity in September
Siltepec, Mexico
- Average humidity in September: 84%
The month with the highest relative humidity is September (84%).
The month with the lowest relative humidity is April (63%).
Average rainfall in September
Siltepec, Mexico
- Average rainfall in September: 212mm
The wettest month (with the highest rainfall) is June (242mm).
The driest month (with the least rainfall) is December (10mm).
Average rainfall days in September
Siltepec, Mexico
- Average rainfall days in September: 26.9 days
The month with the highest number of rainy days is September (26.9 days).
The month with the least rainy days is December (7.1 days).
Average daylight in September /
Average sunshine in September
Siltepec, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in September
Siltepec, Mexico
- Average sunshine days in September: 2.1 days
The month with the most sunshine days is December (18.8 days).
The month with the least sunshine days is September (2.1 days).
Average UV index in September
Siltepec, Mexico
- Average UV index in September: 5
The months with the highest UV index are March, April, May, June and July (UV index 6).
The months with the lowest UV index are January, February, August, September, October, November and December (UV index 5).
Average cloud cover in September
Siltepec, Mexico
- Average cloud cover in September: 45
The month with the most cloud cover is September (Cloud cover 45).
The month with the least cloud cover is March (Cloud cover 19).
Average visibility in September
Siltepec, Mexico
- Average visibility in September: 8km
The months with the highest visibility are March and April (10km).
The months with the lowest visibility are August, September, October and November (8km).
