September weather forecastHerrán, Colombia

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Herrán, Colombia, with an average temperature fluctuating between 10.9°C (51.6°F) and 19.7°C (67.5°F).

Temperature

As August transitions into September, Herrán records an average high-temperature of a still comfortable 19.7°C (67.5°F), consistent with the preceding month. Herrán encounters a steady low-temperature average of 10.9°C (51.6°F) throughout the month of September.

Humidity

The average relative humidity in September in Herrán is 81%.

Rainfall

In Herrán, during September, the rain falls for 22.5 days and regularly aggregates up to 103mm (4.06") of precipitation. In Herrán, during the entire year, the rain falls for 288.8 days and collects up to 1411mm (55.55") of precipitation.

Daylight

In Herrán, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 05:42 and sunset at 17:57. On the last day of September, in Herrán, sunrise is at 05:37 and sunset at 17:41 -05.

Sunshine

In Herrán, Colombia, the average sunshine in September is 9h.

UV index

January through December, with an average maximum UV index of 4, are months with the highest UV index. The months with the lowest UV index in Herrán are January through December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 4 in September translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

The average high-temperature and low-temperature during September are 19.7°C (67.5°F) and 10.9°C (51.6°F) respectively.

The average relative humidity in September in Herrán is 81%.

In Herrán, in September, during 22.5 rainfall days, 103mm (4.06") of precipitation is typically accumulated.

In Herrán, Colombia, the average day length in September is 12h and 10min.

On the first day of September in Herrán, Colombia, sunrise is at 05:42 and sunset at 17:57. On the last day of the month, sunrise is at 05:37 and sunset at 17:41 -05.

In Herrán, Colombia, the average sunshine duration in September is 9h.

The months with the highest UV index in Herrán, Colombia, are January through December, with an average maximum UV index of 4.

The months with the lowest UV index in Herrán, Colombia, are January through December, with an average maximum UV index of 4.

In Herrán, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Herrán, Colombia

  • Average high temperature in September: 19.7°C

The warmest month (with the highest average high temperature) is January (19.8°C).
The months with the lowest average high temperature are May and June (18.2°C).

  • Average low temperature in September: 10.9°C

The months with the highest average low temperature are April and May (11.8°C).
The coldest month (with the lowest average low temperature) is January (9.6°C).

Average pressure in September
Herrán, Colombia

  • Average pressure in September: 1012.8mbar

The months with the highest atmospheric pressure are June and July (1013.6mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).

Average wind speed in September
Herrán, Colombia

  • Average wind speed in September: 5.4km/h

The windiest month (with the highest average wind speed) is July (6.5km/h).
The calmest month (with the lowest average wind speed) is November (4.4km/h).

Average humidity in September
Herrán, Colombia

  • Average humidity in September: 81%

The month with the highest relative humidity is May (86%).
The month with the lowest relative humidity is January (75%).

Average rainfall in September
Herrán, Colombia

  • Average rainfall in September: 103mm

The wettest month (with the highest rainfall) is May (249mm).
The driest month (with the least rainfall) is January (35mm).

Average rainfall days in September
Herrán, Colombia

  • Average rainfall days in September: 22.5 days

The month with the highest number of rainy days is May (28.7 days).
The month with the least rainy days is January (16.9 days).

Average daylight in September /
Average sunshine in September
Herrán, Colombia

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).

Average sunshine days in September
Herrán, Colombia

  • Average sunshine days in September: 5.5 days

The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.7 days).

Average UV index in September
Herrán, Colombia

  • Average UV index in September: 4

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 4).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 4).

Average cloud cover in September
Herrán, Colombia

  • Average cloud cover in September: 37

The month with the most cloud cover is May (Cloud cover 53).
The month with the least cloud cover is January (Cloud cover 32).

Average visibility in September
Herrán, Colombia

  • Average visibility in September: 8km

The months with the highest visibility are January, February and December (9km).
The months with the lowest visibility are March, April, May, June, July, August, September, October and November (8km).