September weather forecastOaxaca, Mexico
September
Weather in September
Despite the arrival of autumn, September in Oaxaca retains lingering summer patterns with high temperatures and heavy rainfall reaching up to 200mm (7.87"). The humidity remains dominant, accentuating the heat, especially during the daytime. The city witnesses a significant reduction in sunlight hours, suggesting shorter days. Although rainfall prevails, it becomes evenly spread throughout the month. Scenic views become common, especially after rain showers, further enhancing the city's autumnal beauty.Temperature
As August transitions into September, the average high-temperature in Oaxaca rests at a still pleasant 21.1°C (70°F), maintaining a close resemblance to the previous month. During September, the average low-temperature in Oaxaca, Mexico, is a refreshing 13°C (55.4°F).Humidity
With an average relative humidity of 86%, September is the most humid month in Oaxaca.Rainfall
In Oaxaca, Mexico, during September, the rain falls for 28.8 days and regularly aggregates up to 200mm (7.87") of precipitation. Throughout the year, there are 222.9 rainfall days, and 1066mm (41.97") of precipitation is accumulated.Daylight
In Oaxaca, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 6:13 am and sunset at 6:39 pm. On the last day of September, sunrise is at 6:16 am and sunset at 6:16 pm CST.
Sunshine
In September, the average sunshine in Oaxaca, Mexico, is 8.3h.UV index
The months with the highest UV index are February through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oaxaca, Mexico
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is April (26.8°C).
The month with the lowest average high temperature is November (20.6°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is June (13.3°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).
Average pressure in September
Oaxaca, Mexico
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is January (1017.1mbar).
The month with the lowest atmospheric pressure is May (1012.9mbar).
Average wind speed in September
Oaxaca, Mexico
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is November (7.3km/h).
The calmest months (with the lowest average wind speed) are May and June (5.3km/h).
Average humidity in September
Oaxaca, Mexico
- Average humidity in September: 86%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (62%).
Average rainfall in September
Oaxaca, Mexico
- Average rainfall in September: 200mm
The wettest month (with the highest rainfall) is June (203mm).
The driest month (with the least rainfall) is December (5mm).
Average rainfall days in September
Oaxaca, Mexico
- Average rainfall days in September: 28.8 days
The month with the highest number of rainy days is September (28.8 days).
The month with the least rainy days is February (7 days).
Average daylight in September /
Average sunshine in September
Oaxaca, 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 18min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in September
Oaxaca, Mexico
- Average sunshine days in September: 0.4 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is September (0.4 days).
Average UV index in September
Oaxaca, Mexico
- Average UV index in September: 5
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, October, November and December (UV index 4).
Average cloud cover in September
Oaxaca, Mexico
- Average cloud cover in September: 54
The month with the most cloud cover is September (Cloud cover 54).
The month with the least cloud cover is March (Cloud cover 21).
Average visibility in September
Oaxaca, Mexico
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April and May (9km).
The months with the lowest visibility are July, August, September, October and November (7km).





