September weather forecastNiltepec, Mexico
September
Weather in September
The first month of the autumn, September, is also a hot month in Niltepec, Mexico, with an average temperature fluctuating between 23.8°C (74.8°F) and 32.5°C (90.5°F).Temperature
September brings a marginal elevation to a still tropical 32.5°C (90.5°F) from August's 33.4°C (92.1°F) in Niltepec's average high-temperatures. During September nights, Niltepec witnesses a consistent average temperature of 23.8°C (74.8°F).Heat index
September's mean heat index is calculated to be an extremely hot 44°C (111.2°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.Note that heat index values are valued for light wind and location in the shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
September is the most humid month in Niltepec, with an average relative humidity of 74%.Rainfall
In Niltepec, Mexico, in September, it is raining for 21.2 days, with typically 102mm (4.02") of accumulated precipitation. Throughout the year, there are 132.1 rainfall days, and 500mm (19.69") of precipitation is accumulated.Daylight
In September, the average length of the day in Niltepec is 12h and 13min.On the first day of the month, sunrise is at 6:05 am and sunset at 6:31 pm. On the last day of September, in Niltepec, sunrise is at 6:08 am and sunset at 6:07 pm CST.
Sunshine
The average sunshine in September is 8.7h.UV index
February through September, with an average maximum UV index of 7, are months with the highest UV index in Niltepec. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 in September translates into these instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Niltepec, Mexico
- Average high temperature in September: 32.5°C
The warmest month (with the highest average high temperature) is May (34.4°C).
The month with the lowest average high temperature is January (28°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is May (25.1°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).
Average pressure in September
Niltepec, Mexico
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1011.2mbar).
Average wind speed in September
Niltepec, Mexico
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is November (22.3km/h).
The calmest month (with the lowest average wind speed) is June (10.8km/h).
Average humidity in September
Niltepec, Mexico
- Average humidity in September: 74%
The month with the highest relative humidity is September (74%).
The months with the lowest relative humidity are April and May (63%).
Average rainfall in September
Niltepec, Mexico
- Average rainfall in September: 102mm
The wettest month (with the highest rainfall) is August (109mm).
The driest months (with the least rainfall) are January and March (2mm).
Average rainfall days in September
Niltepec, Mexico
- Average rainfall days in September: 21.2 days
The month with the highest number of rainy days is June (22.8 days).
The month with the least rainy days is February (2.4 days).
Average daylight in September /
Average sunshine in September
Niltepec, Mexico
- Average daylight in September: 12h and 12min
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 12min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in September
Niltepec, Mexico
- Average sunshine days in September: 6 days
The month with the most sunshine days is December (27.3 days).
The month with the least sunshine days is June (5.3 days).
Average UV index in September
Niltepec, Mexico
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in September
Niltepec, Mexico
- Average cloud cover in September: 36
The months with the most cloud cover are June and September (Cloud cover 36).
The month with the least cloud cover is December (Cloud cover 12).
Average visibility in September
Niltepec, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
