September weather forecastSantiago, Peru
September
Weather in September
The first month of the spring, September, is still a warm month in Santiago, Peru, with an average temperature ranging between min 13.7°C (56.7°F) and max 23.7°C (74.7°F).Temperature
The beginning of September records an average high-temperature of a still warm 23.7°C (74.7°F), almost echoing the conditions of the previous month. Throughout the month of September, Santiago expects an average low of 13.7°C (56.7°F).Humidity
In September, the average relative humidity is 64%.Rainfall
January through April, September through December are months with rainfall in Santiago. September is the first month it rains in Santiago, Peru. Throughout September, in the average 1.5 rainfall days, it receives 1mm (0.04") of precipitation. Throughout the year, there are 79.5 rainfall days, and 108mm (4.25") of precipitation is accumulated.Daylight
In Santiago, the average length of the day in September is 12h and 2min.On the first day of the month, sunrise is at 06:07 and sunset at 17:58. On the last day of September, in Santiago, sunrise is at 05:45 and sunset at 17:59 -05.
Sunshine
In September, the average sunshine in Santiago is 9h.UV index
May through November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sun damage is advised. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago, Peru
- Average high temperature in September: 23.7°C
The warmest month (with the highest average high temperature) is March (25.5°C).
The month with the lowest average high temperature is July (22.9°C).
- Average low temperature in September: 13.7°C
The month with the highest average low temperature is March (19.5°C).
The coldest month (with the lowest average low temperature) is August (13.1°C).
Average pressure in September
Santiago, Peru
- Average pressure in September: 1015.6mbar
The months with the highest atmospheric pressure are July and August (1015.9mbar).
The month with the lowest atmospheric pressure is February (1013.3mbar).
Average wind speed in September
Santiago, Peru
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is November (10.5km/h).
The calmest month (with the lowest average wind speed) is June (9.2km/h).
Average humidity in September
Santiago, Peru
- Average humidity in September: 64%
The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are August and October (63%).
Average rainfall in September
Santiago, Peru
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is January (32mm).
The driest months (with the least rainfall) are May, June, July and August (0mm).
Average rainfall days in September
Santiago, Peru
- Average rainfall days in September: 1.5 days
The month with the highest number of rainy days is February (20.3 days).
The month with the least rainy days is August (0.1 days).
Average daylight in September /
Average sunshine in September
Santiago, Peru
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is November (Average sunshine: 12h and 12min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days in September
Santiago, Peru
- Average sunshine days in September: 28.9 days
The month with the most sunshine days is August (30.8 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in September
Santiago, Peru
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 5).
Average cloud cover in September
Santiago, Peru
- Average cloud cover in September: 6
The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are June, July and August (Cloud cover 3).
Average visibility in September
Santiago, 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).
