September weather forecast
Rio Blanco, Guatemala

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Weather in September

The first month of the autumn, September, is also an agreeable month in Rio Blanco, Guatemala, with an average temperature ranging between min 13.6°C (56.5°F) and max 21°C (69.8°F).

Temperature

The commencement of September notes an average high-temperature of a still agreeable 21°C (69.8°F), exhibiting little difference from the previous month. Throughout the September nights, Rio Blanco encounters a low-temperature of 13.6°C (56.5°F).

Humidity

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

Rainfall

In Rio Blanco, during September, the rain falls for 28.8 days and regularly aggregates up to 283mm (11.14") of precipitation. In Rio Blanco, during the entire year, the rain falls for 263.6 days and collects up to 2061mm (81.14") of precipitation.

Daylight

In September, the average length of the day in Rio Blanco is 12h and 13min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:17. On the last day of September, in Rio Blanco, sunrise is at 05:54 and sunset at 17:54 CST.

Sunshine

In September, the average sunshine in Rio Blanco is 8.7h.

UV index

The months with the highest UV index in Rio Blanco are January through October and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health 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:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Resources | Updated: Feb 15, 2024 | Published by: Weather Atlas

Frequently asked questions

What are September temperatures in Rio Blanco?

September temperatures in Rio Blanco, Guatemala, vary between a high-temperature of 21°C (69.8°F) and a low-temperature of 13.6°C (56.5°F).

What is the most humid month in Rio Blanco?

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

What is the average humidity in September in Rio Blanco?

The average relative humidity in September in Rio Blanco, Guatemala, is 87%.

How many days does it rain in September in Rio Blanco?

In Rio Blanco, in September, during 28.8 rainfall days, 283mm (11.14") of precipitation is typically accumulated.

What is the average length of the day in September in Rio Blanco?

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

What time are sunrise and sunset in September in Rio Blanco?

In September, on the first day of the month, sunrise is at 05:52 and sunset at 18:17. On the last day of the month, in Rio Blanco, sunrise is at 05:54 and sunset at 17:54 CST.

How long on average sun shines in September in Rio Blanco?

In Rio Blanco, Guatemala, the average sunshine duration in September is 8.7h.

When is the highest UV index in Rio Blanco?

The months with the highest UV index are January through October and December, with an average maximum UV index of 5.

How high is the UV index in September in Rio Blanco?

In Rio Blanco, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.

Average temperature in September
Rio Blanco, Guatemala

Average temperature in September - Rio Blanco, Guatemala
  • Average high temperature in September: 21°C

The warmest month (with the highest average high temperature) is April (23.8°C).
The month with the lowest average high temperature is October (20.7°C).

  • Average low temperature in September: 13.6°C

The month with the highest average low temperature is May (14.3°C).
The coldest month (with the lowest average low temperature) is January (10.2°C).

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Average pressure in September
Rio Blanco, Guatemala

Average pressure in September - Rio Blanco, Guatemala
  • Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is January (1015.3mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).

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Average wind speed in September
Rio Blanco, Guatemala

Average wind speed in September - Rio Blanco, Guatemala
  • Average wind speed in September: 4.4km/h

The windiest month (with the highest average wind speed) is January (6.1km/h).
The calmest month (with the lowest average wind speed) is May (4.1km/h).

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Average humidity in September
Rio Blanco, Guatemala

Average humidity in September - Rio Blanco, Guatemala
  • Average humidity in September: 87%

The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is March (69%).

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Average rainfall in September
Rio Blanco, Guatemala

Average rainfall in September - Rio Blanco, Guatemala
  • Average rainfall in September: 283mm

The wettest month (with the highest rainfall) is May (372mm).
The driest month (with the least rainfall) is January (14mm).

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Average rainfall days in September
Rio Blanco, Guatemala

Average rainfall days in September - Rio Blanco, Guatemala
  • Average rainfall days in September: 28.8 days

The months with the highest number of rainy days are June and October (29.2 days).
The month with the least rainy days is February (10.8 days).

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Average daylight in September /
Average sunshine in September
Rio Blanco, Guatemala

Average daylight in September / Average sunshine in September - Rio Blanco, Guatemala
  • Average daylight in September: 12h and 1min

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 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is April (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).

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Average sunshine days in September
Rio Blanco, Guatemala

Average sunshine days in September - Rio Blanco, Guatemala
  • Average sunshine days in September: 0.6 days

The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is October (0.5 days).

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Average UV index in September
Rio Blanco, Guatemala

Average UV index in September - Rio Blanco, Guatemala
  • Average UV index in September: 5

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

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Average cloud cover in September
Rio Blanco, Guatemala

Average cloud cover in September - Rio Blanco, Guatemala
  • Average cloud cover in September: 50

The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 19).

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Average visibility in September
Rio Blanco, Guatemala

Average visibility in September - Rio Blanco, Guatemala
  • Average visibility in September: 8km

The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are May, June, August, September and October (8km).

[Resources]

Rio Blanco, Guatemala

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