September weather forecastAyacucho, Peru
September
Weather in September
September in Ayacucho brings a distinct shift away from the cooler, drier months. Contrasted against August, this month has a slight upswing in temperatures and precipitation levels. Rainfall values increase to 19mm (0.75") making it slightly wetter than most of the year's previous months. As daylight extends, warm afternoons give way to crisp, cool evenings. As the transition to October occurs, expect further increments in precipitation and temperature.Temperature
With the onset of September in Ayacucho, the average high-temperature registers at a still moderate 14.4°C (57.9°F), subtly different from August's 14.1°C (57.4°F). Ayacucho, during the month of September, experiences an average low-temperature of 4.8°C (40.6°F).Humidity
In September, the average relative humidity is 70%.Rainfall
In Ayacucho, in September, during 12.1 rainfall days, 19mm (0.75") of precipitation is typically accumulated. In Ayacucho, during the entire year, the rain falls for 217.5 days and collects up to 756mm (29.76") of precipitation.Snowfall
February, March, September, November and December are months without snowfall.Daylight
The average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 06:00 and sunset at 17:52. On the last day of the month, sunrise is at 05:40 and sunset at 17:53 -05.
Sunshine
In Ayacucho, the average sunshine in September is 9.4h.UV index
January through September and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 in September translates into these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ayacucho, Peru
- Average high temperature in September: 14.4°C
The warmest month (with the highest average high temperature) is November (15.7°C).
The month with the lowest average high temperature is July (13.3°C).
- Average low temperature in September: 4.8°C
The month with the highest average low temperature is November (7.6°C).
The coldest month (with the lowest average low temperature) is July (3.1°C).
Average pressure in September
Ayacucho, Peru
- Average pressure in September: 1018.1mbar
The months with the highest atmospheric pressure are June and July (1019.4mbar).
The month with the lowest atmospheric pressure is November (1014.8mbar).
Average wind speed in September
Ayacucho, Peru
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is September (8.4km/h).
The calmest months (with the lowest average wind speed) are May and June (6.6km/h).
Average humidity in September
Ayacucho, Peru
- Average humidity in September: 70%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Ayacucho, Peru
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is December (140mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in September
Ayacucho, Peru
- Average rainfall days in September: 12.1 days
The months with the highest number of rainy days are January and December (27.9 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in September
Ayacucho, Peru
- Average snowfall in September: 0mm
The month with the highest snowfall is April (6mm).
The months with the least snowfall are February, March, September, November and December (0mm).
Average snowfall days in September
Ayacucho, Peru
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is April (1.3 days).
The months with the least snowfall days are November and December (0 days).
Average daylight in September /
Average sunshine in September
Ayacucho, Peru
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are November and December (Average sunshine: 10h and 36min).
The month with the least sunshine is April (Average sunshine: 7h and 0min).
Average sunshine days in September
Ayacucho, Peru
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is August (24.4 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in September
Ayacucho, Peru
- Average UV index in September: 3
The months with the highest UV index are October and November (UV index 4).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September and December (UV index 3).
Average cloud cover in September
Ayacucho, Peru
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Ayacucho, Peru
- Average visibility in September: 10km
The months with the highest visibility are August, September and October (10km).
The month with the lowest visibility is April (8km).
