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
During September, Tres Zapotes observes a subtle ascent to a moderately hot 29°C (84.2°F) from August's 30.1°C (86.2°F) in the average high-temperature. Tres Zapotes in September anticipates an average nighttime temperature of 22.2°C (72°F).Heat index
The heat index in September is appraised at a very hot 36°C (96.8°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
The average relative humidity in September is 85%.Rainfall
In Tres Zapotes, during September, the rain falls for 25.7 days and regularly aggregates up to 163mm (6.42") of precipitation. Throughout the year, there are 224.6 rainfall days, and 1159mm (45.63") of precipitation is accumulated.Daylight
In September, the average length of the day in Tres Zapotes is 12h and 14min.On the first day of the month, sunrise is at 6:07 am and sunset at 6:35 pm. On the last day of September, sunrise is at 6:12 am and sunset at 6:10 pm CST.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Tres Zapotes have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Tres Zapotes, Mexico
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is May (32.7°C).
The month with the lowest average high temperature is January (23.5°C).
- Average low temperature in September: 22.2°C
The month with the highest average low temperature is May (23.8°C).
The coldest month (with the lowest average low temperature) is January (17.1°C).
Average pressure in September
Tres Zapotes, Mexico
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is January (1018.2mbar).
The month with the lowest atmospheric pressure is May (1011.4mbar).
Average wind speed in September
Tres Zapotes, Mexico
- Average wind speed in September: 7.5km/h
The windiest months (with the highest average wind speed) are January and November (10.7km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).
Average humidity in September
Tres Zapotes, Mexico
- Average humidity in September: 85%
The months with the highest relative humidity are November and December (87%).
The months with the lowest relative humidity are April and May (70%).
Average rainfall in September
Tres Zapotes, Mexico
- Average rainfall in September: 163mm
The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Tres Zapotes, Mexico
- Average rainfall days in September: 25.7 days
The month with the highest number of rainy days is September (25.7 days).
The month with the least rainy days is April (10 days).
Average daylight in September /
Average sunshine in September
Tres Zapotes, Mexico
- Average daylight in September: 12h and 1min
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 0min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The months with the least sunshine are November and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Tres Zapotes, Mexico
- Average sunshine days in September: 3.4 days
The month with the most sunshine days is April (17.8 days).
The month with the least sunshine days is September (3.4 days).
Average UV index in September
Tres Zapotes, Mexico
- Average UV index in September: 6
The months with the highest UV index are March, April, May, June and August (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Tres Zapotes, Mexico
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is April (Cloud cover 24).
Average visibility in September
Tres Zapotes, Mexico
- Average visibility in September: 8km
The month with the highest visibility is May (10km).
The months with the lowest visibility are January, February, August, September, October, November and December (8km).
