September weather forecastChacas, Peru

September

Weather in September

The first month of the spring, September, is still a cool month in Chacas, Peru, with temperature in the range of an average high of 12.2°C (54°F) and an average low of 5.5°C (41.9°F).

Temperature

September brings the highest temperatures, with an average high of 12.2°C (54°F) and an average low of 5.5°C (41.9°F).

Humidity

In Chacas, the average relative humidity in September is 64%.

Rainfall

In Chacas, Peru, in September, during 17.5 rainfall days, 47mm (1.85") of precipitation is typically accumulated. In Chacas, Peru, during the entire year, the rain falls for 231.9 days and collects up to 1256mm (49.45") of precipitation.

Snowfall

Months with snowfall in Chacas are January through July, September through December. September is the first month it typically snows in Chacas. Throughout September, in the average 0.1 snowfall days, it receives 11mm (0.43") of snow. In Chacas, during the entire year, snow falls for 5.9 days and aggregates up to 119mm (4.69") of snow.

Daylight

In September, the average length of the day in Chacas is 12h and 4min.
On the first day of September, sunrise is at 06:10 and sunset at 18:07. On the last day of the month, sunrise is at 05:53 and sunset at 18:04 -05.

Sunshine

The average sunshine in September is 10h.

UV index

The months with the highest UV index in Chacas are January through December, with an average maximum UV index of 3. The months with the lowest UV index in Chacas are January through December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 3 during September translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

September proves to be the warmest month, recording an average peak temperature of 12.2°C (54°F) and a minimum temperature of 5.5°C (41.9°F).

An average high-temperature, in September, in Chacas, is 12.2°C (54°F) and the average low-temperature is 5.5°C (41.9°F).

In Chacas, Peru, the average relative humidity in September is 64%.

In Chacas, in September, during 17.5 rainfall days, 47mm (1.85") of precipitation is typically accumulated.

September is the first month it typically snows in Chacas, Peru. Throughout September, in the average 0.1 snowfall days, it receives 11mm (0.43") of snow.

In September, the average day length in Chacas is 12h and 4min.

On the first day of September, sunrise is at 06:10 and sunset at 18:07. On the last day of the month, sunrise is at 05:53 and sunset at 18:04 -05.

The average sunshine duration in September in Chacas, Peru, is 10h.

The months with the highest UV index in Chacas are January through December, with an average maximum UV index of 3.

January through December, with an average maximum UV index of 3, are months with the lowest UV index in Chacas.

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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 snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Chacas, Peru

  • Average high temperature in September: 12.2°C

The warmest month (with the highest average high temperature) is September (12.2°C).
The month with the lowest average high temperature is December (10.6°C).

  • Average low temperature in September: 5.5°C

The month with the highest average low temperature is November (6.5°C).
The coldest month (with the lowest average low temperature) is July (4.3°C).

Average pressure in September
Chacas, Peru

  • Average pressure in September: 1016.6mbar

The month with the highest atmospheric pressure is July (1017.2mbar).
The months with the lowest atmospheric pressure are February and November (1014.4mbar).

Average wind speed in September
Chacas, Peru

  • Average wind speed in September: 7.7km/h

The windiest months (with the highest average wind speed) are July and August (7.9km/h).
The calmest month (with the lowest average wind speed) is March (5.6km/h).

Average humidity in September
Chacas, Peru

  • Average humidity in September: 64%

The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is August (59%).

Average rainfall in September
Chacas, Peru

  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is December (200mm).
The driest month (with the least rainfall) is June (17mm).

Average rainfall days in September
Chacas, Peru

  • Average rainfall days in September: 17.5 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is July (9.2 days).

Average snowfall in September
Chacas, Peru

  • Average snowfall in September: 11mm

The month with the highest snowfall is October (54mm).
The month with the least snowfall is August (0mm).

Average snowfall days in September
Chacas, Peru

  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is April (1.6 days).
The month with the least snowfall days is August (0 days).

Average daylight in September /
Average sunshine in September
Chacas, Peru

  • Average daylight in September: 12h and 6min

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

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is October (Average sunshine: 10h and 6min).
The month with the least sunshine is May (Average sunshine: 7h and 0min).

Average sunshine days in September
Chacas, Peru

  • Average sunshine days in September: 11.2 days

The month with the most sunshine days is July (20.2 days).
The month with the least sunshine days is January (2 days).

Average UV index in September
Chacas, Peru

  • Average UV index in September: 3

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

Average cloud cover in September
Chacas, Peru

  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in September
Chacas, Peru

  • Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).