September weather forecastEl Terrero, Guatemala

September weather forecast for El Terrero, Guatemala: The first month of the autumn, September, is still a warm month in El Terrero, Guatemala, with an average temperature varying between 15.1°C (59.2°F) and 23.4°C (74.1°F). The month with the most rainfall is September, when the rain falls for 28.8 days and typically aggregates up to 298mm (11.73") of precipitation.

September

Weather in September

The first month of the autumn, September, is still a warm month in El Terrero, Guatemala, with an average temperature varying between 15.1°C (59.2°F) and 23.4°C (74.1°F).

Temperature

September's commencement is accompanied by an average high-temperature of a still warm 23.4°C (74.1°F), diverging marginally from August's 24.2°C (75.6°F). In El Terrero, the nighttime temperature averages to a moderate 15.1°C (59.2°F) during September.

Humidity

September is the most humid month, 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 El Terrero, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:13. On the last day of September, 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 estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

The average high-temperature and low-temperature during September 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', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 29°C (84.2°F).

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

In September, the average relative humidity is 90%.

The month with the most rainfall is September, when the rain falls for 28.8 days and typically aggregates up to 298mm (11.73") of precipitation.

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

In September, the average day length 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.

The average sunshine duration in September is 7.6h.

In El Terrero, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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
El Terrero, 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).

Average visibility in September
El Terrero, Guatemala

  • Average visibility in September: 6km

The month with the highest visibility is March (10km).
The month with the lowest visibility is September (6km).