September weather forecastSan Bartolito, Mexico

September weather for San Bartolito, Mexico: The first month of the autumn, September, is still a comfortable month in San Bartolito, Mexico, with an average temperature fluctuating between 9.7°C (49.5°F) and 18.2°C (64.8°F). With an average relative humidity of 86%, September is the most humid month in San Bartolito, Mexico.

September

Weather in September

The first month of the autumn, September, is still a comfortable month in San Bartolito, Mexico, with an average temperature fluctuating between 9.7°C (49.5°F) and 18.2°C (64.8°F).

Temperature

San Bartolito ushers in September with an average high-temperature of a still comfortable 18.2°C (64.8°F), showing a close resemblance to the previous month. An average nighttime temperature of 9.7°C (49.5°F) is noted in San Bartolito, Mexico, during the month of September.

Humidity

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

Rainfall

In San Bartolito, in September, it is raining for 28 days, with typically 224mm (8.82") of accumulated precipitation. Throughout the year, there are 211.5 rainfall days, and 1407mm (55.39") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm CST.

Sunshine

In San Bartolito, the average sunshine in September is 8.3h.

UV index

September and October, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In September, the UV index of 3 transforms into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

In San Bartolito, in September, the average high-temperature is 18.2°C (64.8°F), and the average low-temperature is 9.7°C (49.5°F).

With an average relative humidity of 86%, September is the most humid month in San Bartolito, Mexico.

The average relative humidity in September in San Bartolito is 86%.

In San Bartolito, in September, during 28 rainfall days, 224mm (8.82") of precipitation is typically accumulated.

The average day length in September in San Bartolito, Mexico, is 12h and 14min.

In September, on the first day of the month, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm CST.

The average sunshine duration in September in San Bartolito, Mexico, is 8.3h.

September and October, with an average maximum UV index of 3, are months with the lowest UV index.

In San Bartolito, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
San Bartolito, Mexico

  • Average high temperature in September: 18.2°C

The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).

Average pressure in September
San Bartolito, Mexico

  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).

Average wind speed in September
San Bartolito, Mexico

  • Average wind speed in September: 5.1km/h

The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).

Average humidity in September
San Bartolito, 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 (47%).

Average rainfall in September
San Bartolito, Mexico

  • Average rainfall in September: 224mm

The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).

Average rainfall days in September
San Bartolito, Mexico

  • Average rainfall days in September: 28 days

The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).

Average daylight in September /
Average sunshine in September
San Bartolito, Mexico

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).

Average sunshine days in September
San Bartolito, Mexico

  • Average sunshine days in September: 1.1 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).

Average UV index in September
San Bartolito, Mexico

  • Average UV index in September: 3

The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are September and October (UV index 3).

Average cloud cover in September
San Bartolito, Mexico

  • Average cloud cover in September: 46

The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).

Average visibility in September
San Bartolito, Mexico

  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).