September weather forecastSyria, VA
September
Weather in September
The first month of the autumn, September, is still a warm month in Syria, Virginia, with an average temperature fluctuating between 75.9°F (24.4°C) and 55.4°F (13°C).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still warm 75.9°F (24.4°C) from August's 82.9°F (28.3°C). An average low-temperature of 55.4°F (13°C) is noted during the nights in September in Syria.Humidity
September and October, with an average relative humidity of 79%, are the most humid months in Syria.Rainfall
In September, the rain falls for 10.6 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Syria, Virginia, there are 116.3 rainfall days, and 9.72" (247mm) of precipitation is accumulated.Snowfall
In Syria, snow does not fall in May through October.Daylight
The average length of the day in September in Syria is 12h and 25min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:42 pm. On the last day of September, in Syria, sunrise is at 7:08 am and sunset at 6:57 pm EDT.
Sunshine
In Syria, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Undertake precautions - Guarding against sun damage is counselled. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Syria, VA
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Syria, VA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Syria, VA
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Syria, VA
- Average humidity in September: 79%
The months with the highest relative humidity are September and October (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Syria, VA
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is August (1.18").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Syria, VA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Syria, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Syria, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Syria, VA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Syria, VA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in September
Syria, VA
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Syria, VA
- Average cloud cover in September: 42
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Syria, VA
- Average visibility in September: 5mi
The months with the highest visibility are February, July and November (6mi).
The months with the lowest visibility are January, March, April, May, June, August, September, October and December (5mi).
