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 shift into September uncovers an average high-temperature of a still agreeable 21°C (69.8°F), subtly different from the previous month. During the September nights, an average temperature of 13.6°C (56.5°F) is observed in San Martín Chiquito.Humidity
With an average relative humidity of 87%, September is the most humid month.Rainfall
In San Martín Chiquito, Guatemala, during September, the rain falls for 28.8 days and regularly aggregates up to 283mm (11.14") of precipitation. In San Martín Chiquito, during the entire year, the rain falls for 263.6 days and collects up to 2061mm (81.14") of precipitation.Daylight
The average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 05:54 and sunset at 18:18. On the last day of September, in San Martín Chiquito, sunrise is at 05:56 and sunset at 17:56 CST.
Sunshine
The average sunshine in September is 8.7h.UV index
January through October and December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in San Martín Chiquito?
What is the most humid month in San Martín Chiquito?
What is the average humidity in September in San Martín Chiquito?
How much does it rain in San Martín Chiquito in September?
What is the average length of the day in September in San Martín Chiquito?
What time are sunrise and sunset in September in San Martín Chiquito?
How many hours of sunshine does San Martín Chiquito have in September?
What are the months with the highest UV index in San Martín Chiquito?
How high is the UV index in September in San Martín Chiquito?
Average temperature in September
San Martín Chiquito, Guatemala
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is April (23.8°C).
The month with the lowest average high temperature is October (20.7°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is May (14.3°C).
The coldest month (with the lowest average low temperature) is January (10.2°C).
Average pressure in September
San Martín Chiquito, Guatemala
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is January (1015.3mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).
Average wind speed in September
San Martín Chiquito, Guatemala
- Average wind speed in September: 4.4km/h
The windiest month (with the highest average wind speed) is January (6.1km/h).
The calmest month (with the lowest average wind speed) is May (4.1km/h).
Average humidity in September
San Martín Chiquito, Guatemala
- Average humidity in September: 87%
The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is March (69%).
Average rainfall in September
San Martín Chiquito, Guatemala
- Average rainfall in September: 283mm
The wettest month (with the highest rainfall) is May (372mm).
The driest month (with the least rainfall) is January (14mm).
Average rainfall days in September
San Martín Chiquito, Guatemala
- Average rainfall days in September: 28.8 days
The months with the highest number of rainy days are June and October (29.2 days).
The month with the least rainy days is February (10.8 days).
Average daylight in September /
Average sunshine in September
San Martín Chiquito, Guatemala
- Average daylight in September: 12h and 1min
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 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is April (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in September
San Martín Chiquito, Guatemala
- Average sunshine days in September: 0.6 days
The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is October (0.5 days).
Average UV index in September
San Martín Chiquito, Guatemala
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 5).
The month with the lowest UV index is November (UV index 4).
Average cloud cover in September
San Martín Chiquito, Guatemala
- Average cloud cover in September: 50
The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 19).
Average visibility in September
San Martín Chiquito, Guatemala
- Average visibility in September: 8km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are May, June, August, September and October (8km).
