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
The onset of September entails a subtle temperature shift, as the average high-temperature eases from 81.1°F (27.3°C) in August to a still warm 74.7°F (23.7°C). In Dublin, the average temperature during the nights of September drops to a fresh 53.8°F (12.1°C).Humidity
In Dublin, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 15.6 days and accumulates 1.65" (42mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:07 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September in Dublin?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Dublin have in September?
What is the UV index reading in September?
Average temperature in September
Dublin, VA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Dublin, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Dublin, VA
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Dublin, VA
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June and July (76%).
Average rainfall in September
Dublin, VA
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Dublin, VA
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in September
Dublin, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dublin, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dublin, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Dublin, VA
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is May (8.2 days).
Average UV index in September
Dublin, VA
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Dublin, VA
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 36).
Average visibility in September
Dublin, VA
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
Dublin, Virginia, USA
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