Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset introduces a mild reduction in the average high-temperature, from 27.8°C (82°F) in August to a still moderately hot 23.4°C (74.1°F). An average nighttime temperature of 17.6°C (63.7°F) is observed in Costinești during September.Humidity
In Costinești, the average relative humidity in September is 63%.Rainfall
In Costinești, Romania, during September, the rain falls for 8.1 days and regularly aggregates up to 16mm (0.63") of precipitation. Throughout the year, in Costinești, there are 113.7 rainfall days, and 238mm (9.37") of precipitation is accumulated.Snowfall
In Costinești, snow does not fall in April through November.Daylight
In Costinești, the average length of the day in September is 12h and 31min.On the first day of September in Costinești, sunrise is at 06:29 and sunset at 19:41. On the last day of the month, sunrise is at 07:02 and sunset at 18:48 EEST.
Sunshine
In September, the average sunshine in Costinești is 10.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are the temperatures in Costinești in September?
What is the average humidity in September in Costinești?
How many days does it rain in September in Costinești?
When it does not snow in Costinești?
How many hours of daylight does Costinești have in September?
What time are sunrise and sunset in September in Costinești?
How long on average sun shines in September in Costinești?
How high is the UV index in September in Costinești?
Average temperature in September
Costinești, Romania
- Average high temperature in September: 23.4°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 17.6°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in September
Costinești, Romania
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is July (1012.2mbar).
Average wind speed in September
Costinești, Romania
- Average wind speed in September: 17km/h
The windiest months (with the highest average wind speed) are January and February (21.5km/h).
The calmest month (with the lowest average wind speed) is July (14.2km/h).
Average humidity in September
Costinești, Romania
- Average humidity in September: 63%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Costinești, Romania
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is October (26mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Costinești, Romania
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is June (12.8 days).
The month with the least rainy days is August (4.3 days).
Average snowfall in September
Costinești, Romania
- Average snowfall in September: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Costinești, Romania
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.3 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
Costinești, Romania
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Costinești, Romania
- Average sunshine days in September: 20 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is June (15.3 days).
Average UV index in September
Costinești, Romania
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Costinești, Romania
- Average cloud cover in September: 24
The months with the most cloud cover are January and February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Costinești, Romania
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Costinești, Romania
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