Suffolk, VA weather in September
Suffolk is warm and often humid in September, with some rain: highs average 80°F and nights drop to about 63°F. Rain falls on about 10 days.
- Normal high
- 80°F
- Normal low
- 63°F
- Wet days
- 10
- 5.8 in total
- Muggy days
- 15
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 83°F | 76°F |
| Normal low | 67°F | 58°F |
| Chance of a wet day | 32% | 29% |
| Sunrise / sunset | 6:37 am / 7:35 pm | 7:00 am / 6:51 pm |
| Daylight | 13.0 h | 11.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical September day
- 6 am67°Fdew point 64°F
- 9 am74°Fdew point 65°F
- Noon78°Fdew point 63°F
- 3 pm78°Fdew point 63°F
- 6 pm74°Fdew point 64°F
- 9 pm70°Fdew point 64°F
NOAA hourly normals (local standard time) from Langley AFB (28 mi away); average wind 8 mph; clear or few clouds in 46% of daytime hours, mostly cloudy or overcast in 40%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F6 of 30
- Hot dayshigh 90°F or more2 of 30
- Muggy daysdaily mean dew point 65°F or more15 of 30
- Wet daysat least 0.01 in of rain or melted snow10 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 5.8 in; a dry September brings about 2.7 in and a wet one about 7.3 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202004: average high 87°F
- Coolest September2020: average high 77°F
- Wettest September1999: 23.1 in
- Driest September2007: 0.4 in
- Highest reading101°F (September 25, 2004)
- Lowest reading45°F (September 29, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 85°F | 80°F | 71°F |
| Normal low | 69°F | 63°F | 52°F |
| Wet days | 11 | 10 | 8 |
| Comfortable days | 0 | 6 | 16 |
| Daylight | 13.5 h | 12.4 h | 11.2 h |
Highs change by -5°F from August and -9°F into October.
Nearby alternatives in September
- Drier: Nags Head, NC75 mi · high 79°F · 7 wet days
How Suffolk ranks in September
- Normal high203rd warmest of 378 cities; 5th of 5 in Virginia
- Wet days289th driest of 378
- Comfortable days191st most of 342
What to pack for Suffolk in September
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
September has 15 heating degree days and 204 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Suffolk in September?
The normal high is 80°F and the normal low is 63°F. From 1991 to 2020 the hottest September reading was 101°F (most recently on September 25, 2004).
Does it rain a lot in Suffolk in September?
About 10 days in September have at least 0.01 in of precipitation, and the normal total is 5.8 in. The wettest September in 1991-2020 was in 1999 (23.1 in); the driest was in 2007 (0.4 in).
Is September a good time to visit Suffolk?
September ranks 7th of 12 months on our comfort score for Suffolk (55 out of 100). It has about 6 comfortable days and about 2 days at 90°F or hotter. The best months are April and May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Suffolk Lake Kilby (USC00448192), 1.0 mi W of the city center, 22 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Langley AFB (USW00013702), 28 mi NNE of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Norfolk NAS (723085-13750), 22 mi NE of the city center, 17 ft . Hourly observations, 1991-2020.