September weather forecastGuanajuato, Mexico

September

Weather in September

September rings in lower temperatures and a gradual decline in rainfall in Guanajuato, indicating the end of the wet season. Local and travelers alike are greeted with a 23.2°C (73.8°F) daily average high and 62mm (2.44") cumulative rainfall. The content climate, marked by balanced wind speeds and frequent clear skies, offers prime conditions for an array-offestivals. Coupled with decreased humidity, the city outpours its colonial charm uninterrupted through the vibrant lanes.

Temperature

September observes an average high-temperature of a still warm 23.2°C (73.8°F), marking an insignificant difference from August's 24.4°C (75.9°F). The nighttime temperature in Guanajuato dips to a cool 12.5°C (54.5°F) on average during September.

Humidity

September is the most humid month, with an average relative humidity of 76%.

Rainfall

In September, the rain falls for 15.6 days. Throughout September, 62mm (2.44") of precipitation is accumulated. Throughout the year, in Guanajuato, there are 116.2 rainfall days, and 425mm (16.73") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:33 pm CST.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 5 during September leads to these advisories:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

The average high-temperature and low-temperature during September are 23.2°C (73.8°F) and 12.5°C (54.5°F) respectively. In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 28°C (82.4°F).

September is the most humid month, with an average relative humidity of 76%.

In September, the average relative humidity is 76%.

In Guanajuato, during September, the rain falls for 15.6 days and regularly aggregates up to 62mm (2.44") of precipitation.

In Guanajuato, the average day length in September is 12h and 15min.

On the first day of September, sunrise is at 6:28 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:33 pm CST.

In Guanajuato, the average sunshine duration in September is 9.3h.

In Guanajuato, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
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
Guanajuato, Mexico

  • Average high temperature in September: 23.2°C

The warmest month (with the highest average high temperature) is May (28.2°C).
The month with the lowest average high temperature is January (19.8°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is June (14.4°C).
The coldest month (with the lowest average low temperature) is January (7°C).

Average pressure in September
Guanajuato, Mexico

  • Average pressure in September: 1015.7mbar

The month with the highest atmospheric pressure is January (1018.5mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).

Average wind speed in September
Guanajuato, Mexico

  • Average wind speed in September: 9.9km/h

The windiest month (with the highest average wind speed) is April (10.8km/h).
The calmest month (with the lowest average wind speed) is December (9.1km/h).

Average humidity in September
Guanajuato, Mexico

  • Average humidity in September: 76%

The month with the highest relative humidity is September (76%).
The month with the lowest relative humidity is April (36%).

Average rainfall in September
Guanajuato, Mexico

  • Average rainfall in September: 62mm

The wettest month (with the highest rainfall) is July (87mm).
The driest month (with the least rainfall) is January (3mm).

Average rainfall days in September
Guanajuato, Mexico

  • Average rainfall days in September: 15.6 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is December (1.8 days).

Average daylight in September /
Average sunshine in September
Guanajuato, 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 54min).

  • Average sunshine in September: 9h and 18min

The months with the most sunshine are January, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 12min).

Average sunshine days in September
Guanajuato, Mexico

  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (9.1 days).

Average UV index in September
Guanajuato, Mexico

  • Average UV index in September: 5

The months with the highest UV index are April and May (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in September
Guanajuato, Mexico

  • Average cloud cover in September: 35

The months with the most cloud cover are July and September (Cloud cover 35).
The months with the least cloud cover are March and April (Cloud cover 11).

Average visibility in September
Guanajuato, Mexico

  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (8km).