September weather forecast
Oaxaca, Mexico

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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.
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the temperature in September in Oaxaca?

The high-temperature during September is 21.1°C (70°F) and the low-temperature is 13°C (55.4°F).

What is the most humid month in Oaxaca?

The most humid month is September, with an average relative humidity of 86%.

What is the average humidity in September in Oaxaca?

In Oaxaca, Mexico, the average relative humidity in September is 86%.

How many days does it rain in September in Oaxaca?

In Oaxaca, in September, it is raining for 28.8 days, with typically 200mm (7.87") of accumulated precipitation.

How many hours of daylight does Oaxaca have in September?

In September, the average day length in Oaxaca is 12h and 14min.

What time are sunrise and sunset in September in Oaxaca?

On the first day of September in Oaxaca, sunrise is at 6:13 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 6:16 pm CST.

How long on average sun shines in September in Oaxaca?

In Oaxaca, Mexico, the average sunshine duration in September is 8.3h.

What are the months with the highest UV index in Oaxaca?

February through September, with an average maximum UV index of 5, are months with the highest UV index in Oaxaca, Mexico.

What is the UV index intensity in September in Oaxaca?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Oaxaca, Mexico

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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Oaxaca, Mexico
  • Average daylight in September: 12h and 1min

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 2min

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 - 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 - 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 - 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 - 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).

Oaxaca, Mexico

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