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
September
Weather in September
Temperature
The advent of September reveals an average high-temperature of a still pleasant 21.2°C (70.2°F), showing minimal difference from the prior month. In Santiago Matatlan, September is marked by an average low-temperature of 12.9°C (55.2°F).Humidity
The most humid month in Santiago Matatlan is September, with an average relative humidity of 86%.Rainfall
In September, the rain falls for 28.4 days. Throughout September, 209mm (8.23") of precipitation is accumulated. In Santiago Matatlan, during the entire year, the rain falls for 229.1 days and collects up to 1131mm (44.53") of precipitation.Daylight
The average length of the day in September in Santiago Matatlan is 12h and 13min.On the first day of the month, sunrise is at 6:12 am and sunset at 6:38 pm. On the last day of September, sunrise is at 6:15 am and sunset at 6:14 pm CST.
Sunshine
In September, the average sunshine in Santiago Matatlan is 8.3h.UV index
February through July and September, with an average maximum UV index of 5, are months with the highest UV index in Santiago Matatlan. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Santiago Matatlan?
What is the most humid month in Santiago Matatlan?
What is the average humidity in September in Santiago Matatlan?
How many days does it rain in September in Santiago Matatlan?
What is the average length of the day in September in Santiago Matatlan?
When are sunrise and sunset in September in Santiago Matatlan?
How many hours of sunshine does Santiago Matatlan have in September?
When is the highest UV index in Santiago Matatlan?
What is the UV index intensity in September in Santiago Matatlan?
Average temperature in September
Santiago Matatlan, Mexico
- Average high temperature in September: 21.2°C
The warmest month (with the highest average high temperature) is April (26.8°C).
The months with the lowest average high temperature are January and November (20.5°C).
- Average low temperature in September: 12.9°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 (7.7°C).
Average pressure in September
Santiago Matatlan, Mexico
- Average pressure in September: 1013.5mbar
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 Matatlan, 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 month (with the lowest average wind speed) is June (5.3km/h).
Average humidity in September
Santiago Matatlan, 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 Matatlan, Mexico
- Average rainfall in September: 209mm
The wettest month (with the highest rainfall) is June (213mm).
The driest months (with the least rainfall) are February and December (7mm).
Average rainfall days in September
Santiago Matatlan, Mexico
- Average rainfall days in September: 28.4 days
The month with the highest number of rainy days is August (29.6 days).
The month with the least rainy days is February (7.1 days).
Average daylight in September /
Average sunshine in September
Santiago Matatlan, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 8h and 2min
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 Matatlan, Mexico
- Average sunshine days in September: 0.3 days
The month with the most sunshine days is January (15.1 days).
The month with the least sunshine days is September (0.3 days).
Average UV index in September
Santiago Matatlan, Mexico
- Average UV index in September: 5
The months with the highest UV index are February, March, April, May, June, July and September (UV index 5).
The months with the lowest UV index are January, August, October, November and December (UV index 4).
Average cloud cover in September
Santiago Matatlan, Mexico
- Average cloud cover in September: 54
The month with the most cloud cover is September (Cloud cover 54).
The months with the least cloud cover are February, March and April (Cloud cover 21).
Average visibility in September
Santiago Matatlan, 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 and October (7km).
