September weather forecastMariscal Castilla, Peru
September
Weather in September
The first month of the spring, September, is still a tropical month in Mariscal Castilla, Peru, with an average temperature varying between 31.6°C (88.9°F) and 19.5°C (67.1°F).Temperature
Mariscal Castilla's warmest weather arrives in September, when temperatures average a high of 31.6°C (88.9°F) and a low of 19.5°C (67.1°F).Heat index
The heat index for September is estimated at a sweltering 39°C (102.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
The least humid month is September, with an average relative humidity of 69%.Rainfall
In Mariscal Castilla, during September, the rain falls for 15.5 days and regularly aggregates up to 72mm (2.83") of precipitation. Throughout the year, there are 246.6 rainfall days, and 1162mm (45.75") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 06:05 and sunset at 18:04. On the last day of September, sunrise is at 05:49 and sunset at 17:59 -05.
Sunshine
With an average of 9.9h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 6. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mariscal Castilla, Peru
- Average high temperature in September: 31.6°C
The warmest month (with the highest average high temperature) is September (31.6°C).
The month with the lowest average high temperature is February (28.9°C).
- Average low temperature in September: 19.5°C
The month with the highest average low temperature is November (20.3°C).
The coldest month (with the lowest average low temperature) is July (18°C).
Average pressure in September
Mariscal Castilla, Peru
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is July (1015mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in September
Mariscal Castilla, Peru
- Average wind speed in September: 4.2km/h
The windiest month (with the highest average wind speed) is December (4.7km/h).
The calmest month (with the lowest average wind speed) is May (3.7km/h).
Average humidity in September
Mariscal Castilla, Peru
- Average humidity in September: 69%
The months with the highest relative humidity are February, March and April (82%).
The month with the lowest relative humidity is September (69%).
Average rainfall in September
Mariscal Castilla, Peru
- Average rainfall in September: 72mm
The wettest month (with the highest rainfall) is March (136mm).
The driest month (with the least rainfall) is August (62mm).
Average rainfall days in September
Mariscal Castilla, Peru
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is March (25.3 days).
The month with the least rainy days is August (15.1 days).
Average daylight in September /
Average sunshine in September
Mariscal Castilla, Peru
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 54min).
The month with the least sunshine is May (Average sunshine: 6h and 18min).
Average sunshine days in September
Mariscal Castilla, Peru
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is February (3.6 days).
Average UV index in September
Mariscal Castilla, Peru
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Mariscal Castilla, Peru
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in September
Mariscal Castilla, Peru
- Average visibility in September: 9km
The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January, February, March, April, May and June (7km).





