September weather forecast
San Juan Atitan, Guatemala

September

Weather in September

September, the first month of the autumn in San Juan Atitan, is still a refreshing month, with an average temperature varying between 9.8°C (49.6°F) and 16.7°C (62.1°F).

Temperature

San Juan Atitan notes the coldest temperatures in September, with a high average of 16.7°C (62.1°F) and a low of 9.8°C (49.6°F).

Humidity

The most humid month in San Juan Atitan is September, with an average relative humidity of 93%.

Rainfall

In San Juan Atitan, during September, the rain falls for 29.9 days and regularly aggregates up to 471mm (18.54") of precipitation. In San Juan Atitan, Guatemala, during the entire year, the rain falls for 295.3 days and collects up to 2656mm (104.57") of precipitation.

Daylight

In San Juan Atitan, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:18. On the last day of September, in San Juan Atitan, sunrise is at 05:56 and sunset at 17:56 CST.

Sunshine

The months with the least sunshine are June and September, with an average of 5.4h of sunshine.

UV index

The months with the lowest UV index are January, June, August, September and November, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

What part of the year is the coldest in San Juan Atitan?
San Juan Atitan, Guatemala, notes the coldest temperatures in September, with a average high of 16.7°C (62.1°F) and a low of 9.8°C (49.6°F).
What are September temperatures in San Juan Atitan?
In September, the average high-temperature and low-temperature are 16.7°C (62.1°F) and 9.8°C (49.6°F) respectively.
What is the most humid month in San Juan Atitan?
The most humid month is September, with an average relative humidity of 93%.
What is the average humidity in September in San Juan Atitan?
In San Juan Atitan, the average relative humidity in September is 93%.
How many days does it rain in September in San Juan Atitan?
In San Juan Atitan, during September, the rain falls for 29.9 days and regularly aggregates up to 471mm (18.54") of precipitation.
What is the average length of the day in September in San Juan Atitan?
In San Juan Atitan, the average day length in September is 12h and 13min.
What time are sunrise and sunset in September in San Juan Atitan?
In September, on the first day of the month, sunrise is at 05:53 and sunset at 18:18. On the last day of the month, in San Juan Atitan, Guatemala, sunrise is at 05:56 and sunset at 17:56 CST.
What is the month with the least sunshine in San Juan Atitan?
June and September, with an average of 5.4h of sunshine, are months with the least sunshine.
How many hours of sunshine does San Juan Atitan have in September?
In San Juan Atitan, the average sunshine duration in September is 5.4h.
What are the months with the lowest UV index in San Juan Atitan?
The months with the lowest UV index in San Juan Atitan are January, June, August, September and November, with an average maximum UV index of 3.
What is the UV index intensity in September in San Juan Atitan?
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - San Juan Atitan, Guatemala
Average temperature in September
San Juan Atitan, Guatemala
  • Average high temperature in September: 16.7°C

The warmest month (with the highest average high temperature) is April (21°C).
The month with the lowest average high temperature is September (16.7°C).

  • Average low temperature in September: 9.8°C

The month with the highest average low temperature is June (10.4°C).
The coldest month (with the lowest average low temperature) is January (6°C).

Average pressure in September - San Juan Atitan, Guatemala
Average pressure in September
San Juan Atitan, Guatemala
  • Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is May (1013mbar).

Average wind speed in September - San Juan Atitan, Guatemala
Average wind speed in September
San Juan Atitan, Guatemala
  • Average wind speed in September: 4.6km/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 May (4.4km/h).

Average humidity in September - San Juan Atitan, Guatemala
Average humidity in September
San Juan Atitan, Guatemala
  • Average humidity in September: 93%

The month with the highest relative humidity is September (93%).
The months with the lowest relative humidity are March and April (77%).

Average rainfall in September - San Juan Atitan, Guatemala
Average rainfall in September
San Juan Atitan, Guatemala
  • Average rainfall in September: 471mm

The wettest month (with the highest rainfall) is June (521mm).
The driest month (with the least rainfall) is February (24mm).

Average rainfall days in September - San Juan Atitan, Guatemala
Average rainfall days in September
San Juan Atitan, Guatemala
  • Average rainfall days in September: 29.9 days

The month with the highest number of rainy days is August (30 days).
The month with the least rainy days is February (16 days).

Average daylight in September / Average sunshine in September - San Juan Atitan, Guatemala
Average daylight in September /
Average sunshine in September
San Juan Atitan, 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: 5h and 2min

The month with the most sunshine is April (Average sunshine: 9h and 48min).
The months with the least sunshine are June and September (Average sunshine: 5h and 24min).

Average sunshine days in September - San Juan Atitan, Guatemala
Average sunshine days in September
San Juan Atitan, Guatemala
  • Average sunshine days in September: 0.1 days

The month with the most sunshine days is December (9.5 days).
The month with the least sunshine days is September (0.1 days).

Average UV index in September - San Juan Atitan, Guatemala
Average UV index in September
San Juan Atitan, Guatemala
  • Average UV index in September: 3

The months with the highest UV index are February, March, April, May, July, October and December (UV index 4).
The months with the lowest UV index are January, June, August, September and November (UV index 3).

Average cloud cover in September - San Juan Atitan, Guatemala
Average cloud cover in September
San Juan Atitan, Guatemala
  • Average cloud cover in September: 75

The months with the most cloud cover are June and September (Cloud cover 75).
The month with the least cloud cover is March (Cloud cover 41).

Average visibility in September - San Juan Atitan, Guatemala
Average visibility in September
San Juan Atitan, Guatemala
  • Average visibility in September: 5km

The month with the highest visibility is April (8km).
The months with the lowest visibility are September and October (5km).

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