September weather forecastContreras, Guatemala

September

Weather in September

September, the first month of the autumn in Contreras, is still a warm month, with an average temperature ranging between min 15.1°C (59.2°F) and max 23.4°C (74.1°F).

Temperature

September's weather records an average high-temperature of a still moderately hot 23.4°C (74.1°F), showing little deviation from August. September in Contreras generally records an average low-temperature of 15.1°C (59.2°F).

Humidity

The most humid month in Contreras is September, with an average relative humidity of 90%.

Rainfall

September is the month with the most rainfall. Rain falls for 28.8 days and accumulates 298mm (11.73") of precipitation.

Daylight

In Contreras, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 05:49 and sunset at 18:13. On the last day of the month, sunrise is at 05:51 and sunset at 17:51 CST.

Sunshine

In September, the average sunshine is 7.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Updated: Feb 15, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, the average high-temperature and low-temperature in Contreras, Guatemala, are 23.4°C (74.1°F) and 15.1°C (59.2°F) respectively. In April, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 29°C (84.2°F).

The most humid month is September, with an average relative humidity of 90%.

The average relative humidity in September is 90%.

September is the month with the most rainfall in Contreras, Guatemala. Rain falls for 28.8 days and accumulates 298mm (11.73") of precipitation.

In September, in Contreras, Guatemala, the rain falls for 28.8 days. Throughout September, 298mm (11.73") of precipitation is accumulated.

In September, the average day length in Contreras is 12h and 13min.

In September, on the first day of the month, sunrise is at 05:49 and sunset at 18:13. On the last day of the month, sunrise is at 05:51 and sunset at 17:51 CST.

In September, the average sunshine duration in Contreras, Guatemala, is 7.6h.

In September, the average daily maximum UV index in Contreras is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Aug

September

Oct

Average high temperature

24.2°C

23.4°C

22.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7km/h

6.1km/h

9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

2.2

0.8

3.7

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Contreras, Guatemala

Average high temperature in September: 23.4°C

The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is October (22.5°C).

Average low temperature in September: 15.1°C

The month with the highest average low temperature is May (16.5°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).

Average pressure in September
Contreras, Guatemala

Average pressure in September: 1012.6mbar

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).

Average wind speed in September
Contreras, Guatemala

Average wind speed in September: 5.7km/h

The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is September (5.7km/h).

Average humidity in September
Contreras, Guatemala

Average humidity in September: 90%

The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is March (69%).

Average rainfall in September
Contreras, Guatemala

Average rainfall in September: 298mm

The wettest month (with the highest rainfall) is September (298mm).
The driest month (with the least rainfall) is January (7mm).

Average rainfall days in September
Contreras, Guatemala

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 January (6.7 days).

Average daylight in September /
Average sunshine in September
Contreras, Guatemala

Average daylight in September: 12h and 12min

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

Average sunshine in September: 7h and 36min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 24min).

Average sunshine days in September
Contreras, Guatemala

Average sunshine days in September: 0.8 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is September (0.8 days).

Average UV index in September
Contreras, Guatemala

Average UV index in September: 5

The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are August and October (UV index 4).

Average cloud cover in September
Contreras, Guatemala

Average cloud cover in September: 60

The month with the most cloud cover is September (Cloud cover 60).
The months with the least cloud cover are January, February and March (Cloud cover 26).