September weather forecastCili, China
September
Weather in September
The first month of the autumn, September, is still a warm month in Cili, China, with an average temperature fluctuating between 27°C (80.6°F) and 18.4°C (65.1°F).Temperature
Cili observes a small decrease in the average high-temperature with the arrival of September, falling from August's hot 31.5°C (88.7°F) to a moderately hot 27°C (80.6°F). In Cili, the nighttime temperature averages to a comfortable 18.4°C (65.1°F) during September.Heat index
In September, the heat index is calculated to be 29°C (84.2°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Consider that heat index readings are for situations in the shade and light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Cili, the average relative humidity in September is 75%.Rainfall
In Cili, during September, the rain falls for 11.6 days and regularly aggregates up to 46mm (1.81") of precipitation. Throughout the year, there are 156.3 rainfall days, and 794mm (31.26") of precipitation is accumulated.Snowfall
In Cili, snow does not fall in April through October.Daylight
In Cili, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 06:13 and sunset at 18:57. On the last day of September, sunrise is at 06:28 and sunset at 18:22 CST.
Sunshine
In September, the average sunshine is 7.4h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cili, China
- Average high temperature in September: 27°C
The warmest months (with the highest average high temperature) are July and August (31.5°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 18.4°C
The month with the highest average low temperature is July (23.3°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in September
Cili, China
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is January (1027mbar).
The month with the lowest atmospheric pressure is July (1003.8mbar).
Average wind speed in September
Cili, China
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is March (8.2km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).
Average humidity in September
Cili, China
- Average humidity in September: 75%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).
Average rainfall in September
Cili, China
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is June (144mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in September
Cili, China
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is December (6.9 days).
Average snowfall in September
Cili, China
- Average snowfall in September: 0mm
The month with the highest snowfall is January (43mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Cili, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cili, China
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 5h and 30min).
Average sunshine days in September
Cili, China
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Cili, China
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Cili, China
- Average cloud cover in September: 45
The months with the most cloud cover are February, March, May, June and September (Cloud cover 45).
The month with the least cloud cover is December (Cloud cover 34).
Average visibility in September
Cili, China
- Average visibility in September: 9km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).
