September weather forecast
Tamasopo, Mexico

The first month of the autumn, September, is still a tropical month in Tamasopo, Mexico, with an average temperature fluctuating between 21.3°C (70.3°F) and 32.2°C (90°F).

Temperature

The arrival of September brings an average high-temperature of a still tropical 32.2°C (90°F), nearly identical to August's 33.5°C (92.3°F). Throughout September, an average low-temperature of 21.3°C (70.3°F) is expected in Tamasopo.

Heat index

September's average heat index is calculated to be an extremely hot 44°C (111.2°F). Stay mindful: Heat exhaustion and heat cramps are likely. Heatstroke could follow extended physical effort.
Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The most humid month is September, with an average relative humidity of 77%.

Rainfall

In Tamasopo, Mexico, in September, during 18.7 rainfall days, 91mm (3.58") of precipitation is typically accumulated. In Tamasopo, during the entire year, the rain falls for 152.5 days and collects up to 576mm (22.68") of precipitation.

Daylight

In September, the average length of the day in Tamasopo is 12h and 16min.
On the first day of the month, sunrise is at 6:20 am and sunset at 6:53 pm. On the last day of September, in Tamasopo, sunrise is at 6:28 am and sunset at 6:25 pm CST.

Sunshine

In Tamasopo, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Tamasopo, Mexico, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.