September weather forecastChala, Peru

September

Weather in September

The first month of the spring, September, is still a pleasant month in Chala, Peru, with an average temperature ranging between min 11.8°C (53.2°F) and max 21.9°C (71.4°F).

Temperature

September's average high-temperature is a still agreeable 21.9°C (71.4°F), maintaining a close comparison with August's 21.5°C (70.7°F). In Chala, an average nighttime temperature of 11.8°C (53.2°F) is expected during September.

Humidity

In September, the average relative humidity is 54%.

Rainfall

The months with the least rainfall are May through November Rain falls for 2.1 days and accumulates 1mm (0.04") of rain.

Sea temperature

September is the month with the coldest seawater, with an average sea temperature of 15.5°C (59.9°F).
Note: In 15.5°C (59.9°F), swimming is not an enjoyable activity for most. As the temperature decreases from 21°C (69.8°F) to 15°C (59°F), it becomes harder to control breathing.

Daylight

The average length of the day in September is 12h and 1min.
On the first day of the month, sunrise is at 06:02 and sunset at 17:51. On the last day of September, sunrise is at 05:39 and sunset at 17:53 -05.

Sunshine

In September, the average sunshine is 9.9h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 5. The months with the lowest UV index are January through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Updated: Aug 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, the average high-temperature and low-temperature are 21.9°C (71.4°F) and 11.8°C (53.2°F) respectively.

The average relative humidity in September is 54%.

May through November are months with the least rain when the rain falls for 2.1 days and typically aggregates up to 1mm (0.04") of rain.

In Chala, Peru, during September, the rain falls for 2.1 days and regularly aggregates up to 1mm (0.04") of precipitation.

With an average sea temperature of 15.5°C (59.9°F), September is the month with the coldest seawater.

In September, the average sea temperature is 15.5°C (59.9°F). For swimming, a surface water temperature of 15.5°C (59.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

In Chala, Peru, the average day length in September is 12h and 1min.

In September, on the first day of the month, sunrise is at 06:02 and sunset at 17:51. On the last day of the month, sunrise is at 05:39 and sunset at 17:53 -05.

The average sunshine duration in September is 9.9h.

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

January through December, with an average maximum UV index of 5, are months with the lowest UV index.

In Chala, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

21.5°C

21.9°C

22.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.1km/h

10.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

0.4

2.1

1.5

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

28.9

25.5

27.7

Average UV index

Average cloud cover

Average visibility

10km

Average temperature in September
Chala, Peru

Average high temperature in September: 21.9°C

The warmest months (with the highest average high temperature) are March and October (22.2°C).
The month with the lowest average high temperature is July (20.6°C).

Average low temperature in September: 11.8°C

The month with the highest average low temperature is February (16.4°C).
The coldest month (with the lowest average low temperature) is July (10.9°C).

Average pressure in September
Chala, Peru

Average pressure in September: 1016.6mbar

The month with the highest atmospheric pressure is July (1017.4mbar).
The month with the lowest atmospheric pressure is February (1014.3mbar).

Average wind speed in September
Chala, Peru

Average wind speed in September: 7.9km/h

The windiest months (with the highest average wind speed) are January and December (9.6km/h).
The calmest months (with the lowest average wind speed) are June and July (6.7km/h).

Average humidity in September
Chala, Peru

Average humidity in September: 54%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (52%).

Average rainfall in September
Chala, Peru

Average rainfall in September: 1mm

The wettest months (with the highest rainfall) are January and February (15mm).
The driest months (with the least rainfall) are May, June, July, August, September, October and November (1mm).

Average rainfall days in September
Chala, Peru

Average rainfall days in September: 2.1 days

The month with the highest number of rainy days is February (11.8 days).
The month with the least rainy days is August (0.4 days).

Average sea temperature in September
Chala, Peru

Average sea temperature in September: 15.5°C

The best month for swimming (with the highest average sea temperature) is January (21.9°C).
The coldest month (with the lowest average sea temperature) is September (15.5°C).

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

Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).

Average sunshine in September: 9h and 54min

The month with the most sunshine is December (Average sunshine: 11h and 54min).
The month with the least sunshine is July (Average sunshine: 7h and 36min).

Average sunshine days in September
Chala, Peru

Average sunshine days in September: 25.5 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is February (14.2 days).

Average UV index in September
Chala, Peru

Average UV index in September: 5

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

Average cloud cover in September
Chala, Peru

Average cloud cover in September: 6

The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 3).

Average visibility in September
Chala, Peru

Average visibility in September: 10km

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