September weather forecastCalcahualco, Mexico

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Calcahualco, Mexico, with an average temperature fluctuating between 13.7°C (56.7°F) and 21.4°C (70.5°F).

Temperature

The commencement of September records an average high-temperature of a still agreeable 21.4°C (70.5°F), barely varying from August's 22.5°C (72.5°F). Calcahualco, during September, witnesses an average low-temperature of 13.7°C (56.7°F).

Humidity

With an average relative humidity of 87%, September is the most humid month.

Rainfall

In Calcahualco, during September, the rain falls for 25.1 days and regularly aggregates up to 161mm (6.34") of precipitation. In Calcahualco, during the entire year, the rain falls for 238.7 days and collects up to 1278mm (50.31") of precipitation.

Daylight

In Calcahualco, 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 6:42 pm. On the last day of September, sunrise is at 6:18 am and sunset at 6:17 pm CST.

Sunshine

In September, the average sunshine is 7h.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 5 during September translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

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

Frequently asked questions

The average high-temperature and low-temperature in Calcahualco, Mexico, during September are 21.4°C (70.5°F) and 13.7°C (56.7°F) respectively.

The most humid month is September, with an average relative humidity of 87%.

In Calcahualco, the average relative humidity in September is 87%.

In Calcahualco, during September, the rain falls for 25.1 days and regularly aggregates up to 161mm (6.34") of precipitation.

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

In September, on the first day of the month, sunrise is at 6:13 am and sunset at 6:42 pm. On the last day of the month, in Calcahualco, sunrise is at 6:18 am and sunset at 6:17 pm CST.

In September, the average sunshine duration is 7h.

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

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

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

22.5°C

21.4°C

20.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.5km/h

6.7km/h

7.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

2.2

2.8

6.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Calcahualco, Mexico

Average high temperature in September: 21.4°C

The warmest month (with the highest average high temperature) is April (24.4°C).
The month with the lowest average high temperature is January (17.8°C).

Average low temperature in September: 13.7°C

The month with the highest average low temperature is May (14.6°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).

Average pressure in September
Calcahualco, Mexico

Average pressure in September: 1014.2mbar

The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.2mbar).

Average wind speed in September
Calcahualco, Mexico

Average wind speed in September: 6.4km/h

The windiest month (with the highest average wind speed) is April (8.6km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).

Average humidity in September
Calcahualco, Mexico

Average humidity in September: 87%

The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is April (70%).

Average rainfall in September
Calcahualco, Mexico

Average rainfall in September: 161mm

The wettest month (with the highest rainfall) is May (203mm).
The driest month (with the least rainfall) is December (14mm).

Average rainfall days in September
Calcahualco, Mexico

Average rainfall days in September: 25.1 days

The month with the highest number of rainy days is August (26.7 days).
The month with the least rainy days is December (12.2 days).

Average daylight in September /
Average sunshine in September
Calcahualco, 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: 7h and 0min

The month with the most sunshine is May (Average sunshine: 10h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in September
Calcahualco, Mexico

Average sunshine days in September: 2.8 days

The month with the most sunshine days is January (15.5 days).
The month with the least sunshine days is August (2.2 days).

Average UV index in September
Calcahualco, 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).