September weather forecastSantiago Ixcuintepec, Mexico
September
Weather in September
The first month of the autumn, September, is still a hot month in Santiago Ixcuintepec, Mexico, with an average temperature ranging between min 22.7°C (72.9°F) and max 32°C (89.6°F).Temperature
With the arrival of September, Santiago Ixcuintepec's average high-temperature registers at a still tropical 32°C (89.6°F), indicating a subtle variation from the previous month. Nighttime temperature experiences an average drop to a pleasant 22.7°C (72.9°F) in September.Heat index
The heat index value during September is calculated to be an extremely hot 42°C (107.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body 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. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
September is the most humid month in Santiago Ixcuintepec, with an average relative humidity of 75%.Rainfall
In Santiago Ixcuintepec, in September, it is raining for 18.3 days, with typically 69mm (2.72") of accumulated precipitation. In Santiago Ixcuintepec, during the entire year, the rain falls for 110.2 days and collects up to 345mm (13.58") of precipitation.Daylight
In Santiago Ixcuintepec, the average length of the day in September is 12h and 13min.On the first day of September in Santiago Ixcuintepec, sunrise is at 6:08 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 6:11 pm CST.
Sunshine
In September, the average sunshine in Santiago Ixcuintepec is 8.8h.UV index
February through September, with an average maximum UV index of 7, are months with the highest UV index in Santiago Ixcuintepec. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago Ixcuintepec, Mexico
- Average high temperature in September: 32°C
The warmest month (with the highest average high temperature) is May (35°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in September: 22.7°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 (18.4°C).
Average pressure in September
Santiago Ixcuintepec, Mexico
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is January (1015.8mbar).
The month with the lowest atmospheric pressure is May (1011.3mbar).
Average wind speed in September
Santiago Ixcuintepec, Mexico
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is January (17.4km/h).
The calmest month (with the lowest average wind speed) is June (8.9km/h).
Average humidity in September
Santiago Ixcuintepec, Mexico
- Average humidity in September: 75%
The month with the highest relative humidity is September (75%).
The months with the lowest relative humidity are April and May (62%).
Average rainfall in September
Santiago Ixcuintepec, Mexico
- Average rainfall in September: 69mm
The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are February, March, November and December (2mm).
Average rainfall days in September
Santiago Ixcuintepec, Mexico
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2.1 days).
Average daylight in September /
Average sunshine in September
Santiago Ixcuintepec, 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 6min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is May (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in September
Santiago Ixcuintepec, Mexico
- Average sunshine days in September: 8.9 days
The month with the most sunshine days is December (26.5 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in September
Santiago Ixcuintepec, 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
Santiago Ixcuintepec, Mexico
- Average cloud cover in September: 36
The months with the most cloud cover are June and September (Cloud cover 36).
The months with the least cloud cover are March and December (Cloud cover 14).
Average visibility in September
Santiago Ixcuintepec, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).





