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
In La Llave, September's average high-temperature stands at a still agreeable 21.7°C (71.1°F), closely related to the preceding month. La Llave experiences an average low-temperature of 12.1°C (53.8°F) in month of September.Humidity
The most humid month is September, with an average relative humidity of 79%.Rainfall
In September, the rain falls for 19.9 days. Throughout September, 67mm (2.64") of precipitation is accumulated. Throughout the year, there are 139.2 rainfall days, and 462mm (18.19") of precipitation is accumulated.Daylight
In La Llave, the average length of the day in September is 12h and 15min.On the first day of September, sunrise is at 6:24 am and sunset at 6:55 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:28 pm CST.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in La Llave?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does La Llave have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does La Llave have in September?
What is the UV index reading in September?
Average temperature in September
La Llave, Mexico
- Average high temperature in September: 21.7°C
The warmest months (with the highest average high temperature) are April and May (26.3°C).
The month with the lowest average high temperature is January (19.5°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is May (13.8°C).
The coldest month (with the lowest average low temperature) is January (7.1°C).
Average pressure in September
La Llave, Mexico
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is January (1018.6mbar).
The month with the lowest atmospheric pressure is May (1013.8mbar).
Average wind speed in September
La Llave, Mexico
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is July (9km/h).
Average humidity in September
La Llave, Mexico
- Average humidity in September: 79%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is April (43%).
Average rainfall in September
La Llave, Mexico
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is July (109mm).
The driest month (with the least rainfall) is December (3mm).
Average rainfall days in September
La Llave, Mexico
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is July (24.2 days).
The month with the least rainy days is December (2.7 days).
Average daylight in September /
Average sunshine in September
La Llave, Mexico
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is November (Average sunshine: 8h and 12min).
Average sunshine days in September
La Llave, Mexico
- Average sunshine days in September: 6.5 days
The month with the most sunshine days is December (26.3 days).
The month with the least sunshine days is July (3.2 days).
Average UV index in September
La Llave, Mexico
- Average UV index in September: 5
The month with the highest UV index is April (UV index 6).
The months with the lowest UV index are January, August, October, November and December (UV index 4).
Average cloud cover in September
La Llave, Mexico
- Average cloud cover in September: 44
The months with the most cloud cover are July and September (Cloud cover 44).
The months with the least cloud cover are March, April and December (Cloud cover 13).
Average visibility in September
La Llave, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May and December (10km).
The months with the lowest visibility are July, August and September (8km).
