September weather forecastSantiago Ixcuintla, Mexico
September
Weather in September
The first month of the autumn, September, is still a hot month in Santiago Ixcuintla, Mexico, with an average temperature varying between 32.2°C (90°F) and 23.9°C (75°F).Temperature
September's commencement is accompanied by an average high-temperature of a still tropical 32.2°C (90°F), diverging marginally from August's 33.2°C (91.8°F). September nights in Santiago Ixcuintla observe an average temperature dip to a warm 23.9°C (75°F).Heat index
For September, the heat index is evaluated at a blazing hot 45°C (113°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.Be informed that the heat index values are oriented around shady conditions and gentle breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
With an average relative humidity of 79%, September is the most humid month.Rainfall
In September, in Santiago Ixcuintla, Mexico, the rain falls for 20.5 days. Throughout September, 92mm (3.62") of precipitation is accumulated. Throughout the year, there are 106.3 rainfall days, and 439mm (17.28") of precipitation is accumulated.Daylight
In September, the average length of the day in Santiago Ixcuintla is 12h and 16min.On the first day of the month, sunrise is at 5:44 am and sunset at 6:16 pm. On the last day of September, sunrise is at 5:52 am and sunset at 5:49 pm MST.
Sunshine
In September, the average sunshine in Santiago Ixcuintla is 9.9h.UV index
The months with the highest UV index are May through July, September and October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 7 during September leads to these instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago Ixcuintla, Mexico
- Average high temperature in September: 32.2°C
The warmest month (with the highest average high temperature) is May (34°C).
The months with the lowest average high temperature are January and December (29.3°C).
- Average low temperature in September: 23.9°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is February (16.2°C).
Average pressure in September
Santiago Ixcuintla, Mexico
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1015.4mbar).
The month with the lowest atmospheric pressure is September (1011.5mbar).
Average wind speed in September
Santiago Ixcuintla, Mexico
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is May (7.8km/h).
The calmest month (with the lowest average wind speed) is December (5.9km/h).
Average humidity in September
Santiago Ixcuintla, Mexico
- Average humidity in September: 79%
The month with the highest relative humidity is September (79%).
The months with the lowest relative humidity are March and April (58%).
Average rainfall in September
Santiago Ixcuintla, Mexico
- Average rainfall in September: 92mm
The wettest month (with the highest rainfall) is August (117mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days in September
Santiago Ixcuintla, Mexico
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is August (22 days).
The month with the least rainy days is April (0.7 days).
Average daylight in September /
Average sunshine in September
Santiago Ixcuintla, Mexico
- Average daylight in September: 12h and 18min
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 48min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is May (Average sunshine: 11h and 54min).
The months with the least sunshine are January, November and December (Average sunshine: 7h and 24min).
Average sunshine days in September
Santiago Ixcuintla, Mexico
- Average sunshine days in September: 8.2 days
The month with the most sunshine days is April (29.7 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in September
Santiago Ixcuintla, Mexico
- Average UV index in September: 7
The months with the highest UV index are May, June, July, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, August, November and December (UV index 6).
Average cloud cover in September
Santiago Ixcuintla, Mexico
- Average cloud cover in September: 39
The month with the most cloud cover is August (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 9).
Average visibility in September
Santiago Ixcuintla, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).





