September weather forecast
La Gran Bretana, Colombia

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Weather in September

September, the first month of the autumn in La Gran Bretana, is also an agreeable month, with an average temperature ranging between min 11°C (51.8°F) and max 20.8°C (69.4°F).

Temperature

La Gran Bretana's September reports an average high-temperature of a still agreeable 20.8°C (69.4°F), exhibiting a minor difference from August. September generally records an average low-temperature of 11°C (51.8°F).

Humidity

With an average relative humidity of 74%, September is the least humid month.

Rainfall

In La Gran Bretana, in September, it is raining for 8.3 days, with typically 28mm (1.1") of accumulated precipitation. In La Gran Bretana, during the entire year, the rain falls for 163.9 days and collects up to 718mm (28.27") of precipitation.

Daylight

In La Gran Bretana, the average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 05:50 and sunset at 18:02. On the last day of the month, sunrise is at 05:44 and sunset at 17:48 -05.

Sunshine

In La Gran Bretana, the average sunshine in September is 9.7h.

UV index

The months with the lowest UV index in La Gran Bretana are January, May through December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 4 during September translates into the following directions:
Be vigilant - Preventing sunburn is recommended. The solar radiation around mid-day is intense; avoid the Sun and stay safe. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Resources | Updated: Jan 25, 2024 | Published by: Weather Atlas

Frequently asked questions

What is the temperature in September in La Gran Bretana?

The average high-temperature, in September, in La Gran Bretana, is 20.8°C (69.4°F), while the average low-temperature is 11°C (51.8°F).

What is the least humid month in La Gran Bretana?

September is the least humid month, with an average relative humidity of 74%.

What is the average humidity in September in La Gran Bretana?

In La Gran Bretana, Colombia, the average relative humidity in September is 74%.

How much does it rain in La Gran Bretana in September?

In La Gran Bretana, in September, it is raining for 8.3 days, with typically 28mm (1.1") of accumulated precipitation.

How many hours of daylight does La Gran Bretana have in September?

In September, the average day length is 12h and 8min.

When is the sunrise / sunset in September in La Gran Bretana?

On the first day of September, sunrise is at 05:50 and sunset at 18:02. On the last day of the month, sunrise is at 05:44 and sunset at 17:48 -05.

How long on average sun shines in September in La Gran Bretana?

The average sunshine duration in September in La Gran Bretana, Colombia, is 9.7h.

What are the months with the lowest UV index in La Gran Bretana?

January, May through December, with an average maximum UV index of 4, are months with the lowest UV index in La Gran Bretana, Colombia.

What is the UV index reading in September in La Gran Bretana?

In La Gran Bretana, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
La Gran Bretana, Colombia

Average temperature in September - La Gran Bretana, Colombia
  • Average high temperature in September: 20.8°C

The warmest month (with the highest average high temperature) is February (21°C).
The months with the lowest average high temperature are April and June (19.4°C).

  • Average low temperature in September: 11°C

The month with the highest average low temperature is March (12.1°C).
The coldest month (with the lowest average low temperature) is January (10.4°C).

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Average pressure in September
La Gran Bretana, Colombia

Average pressure in September - La Gran Bretana, Colombia
  • Average pressure in September: 1014.4mbar

The month with the highest atmospheric pressure is July (1015.3mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).

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Average wind speed in September
La Gran Bretana, Colombia

Average wind speed in September - La Gran Bretana, Colombia
  • Average wind speed in September: 5km/h

The windiest month (with the highest average wind speed) is July (5.6km/h).
The calmest month (with the lowest average wind speed) is November (3.4km/h).

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Average humidity in September
La Gran Bretana, Colombia

Average humidity in September - La Gran Bretana, Colombia
  • Average humidity in September: 74%

The month with the highest relative humidity is November (85%).
The month with the lowest relative humidity is September (74%).

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Average rainfall in September
La Gran Bretana, Colombia

Average rainfall in September - La Gran Bretana, Colombia
  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is October (115mm).
The driest month (with the least rainfall) is August (26mm).

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Average rainfall days in September
La Gran Bretana, Colombia

Average rainfall days in September - La Gran Bretana, Colombia
  • Average rainfall days in September: 8.3 days

The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (7.9 days).

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Average daylight in September /
Average sunshine in September
La Gran Bretana, Colombia

Average daylight in September / Average sunshine in September - La Gran Bretana, Colombia
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).

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Average sunshine days in September
La Gran Bretana, Colombia

Average sunshine days in September - La Gran Bretana, Colombia
  • Average sunshine days in September: 20.2 days

The month with the most sunshine days is August (21.5 days).
The months with the least sunshine days are February and March (10.8 days).

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Average UV index in September
La Gran Bretana, Colombia

Average UV index in September - La Gran Bretana, Colombia
  • Average UV index in September: 4

The months with the highest UV index are February, March and April (UV index 5).
The months with the lowest UV index are January, May, June, July, August, September, October, November and December (UV index 4).

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Average cloud cover in September
La Gran Bretana, Colombia

Average cloud cover in September - La Gran Bretana, Colombia
  • Average cloud cover in September: 29

The month with the most cloud cover is November (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in September
La Gran Bretana, Colombia

Average visibility in September - La Gran Bretana, Colombia
  • Average visibility in September: 10km

The months with the highest visibility are August and September (10km).
The months with the lowest visibility are April, May, October, November and December (8km).

[Resources]

La Gran Bretana, Colombia

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