Williamsburg, VA weather in August
Expect warm, oppressively humid weather with frequent rain in Williamsburg in August, with highs near 87°F and lows near 69°F. Rain falls on about 11 days. It is one of the warmest months in Williamsburg.
- Normal high
- 87°F
- Normal low
- 69°F
- Wet days
- 11
- 5.7 in total
- Muggy days
- 24
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 88°F | 84°F |
| Normal low | 70°F | 67°F |
| Chance of a wet day | 38% | 33% |
| Sunrise / sunset | 6:11 am / 8:14 pm | 6:36 am / 7:37 pm |
| Daylight | 14.1 h | 13.0 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 August day
- 6 am72°Fdew point 68°F
- 9 am80°Fdew point 69°F
- Noon84°Fdew point 68°F
- 3 pm85°Fdew point 68°F
- 6 pm81°Fdew point 68°F
- 9 pm75°Fdew point 69°F
NOAA hourly normals (local standard time) from Newport News Intl Airport (15 mi away); average wind 7 mph; clear or few clouds in 59% of daytime hours, mostly cloudy or overcast in 31%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more10 of 31
- Muggy daysdaily mean dew point 65°F or more24 of 31
- Wet daysat least 0.01 in of rain or melted snow11 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 5.7 in; a dry August brings about 3.0 in and a wet one about 8.5 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How August varies from year to year
- Warmest August, 1991-20201998: average high 90°F
- Coolest August2013: average high 83°F
- Wettest August2020: 16.1 in
- Driest August1995: 1.4 in
- Highest reading100°F (August 1, 1999)
- Lowest reading52°F (August 1, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 89°F | 87°F | 81°F |
| Normal low | 70°F | 69°F | 63°F |
| Wet days | 12 | 11 | 10 |
| Comfortable days | 0 | 0 | 6 |
| Daylight | 14.4 h | 13.6 h | 12.4 h |
Highs change by -2°F from July and -6°F into September.
Nearby alternatives in August
- Cooler: Fayetteville, WV246 mi · high 80°F · 10 wet days
How Williamsburg ranks in August
- Normal high184th warmest of 378 cities; 3rd of 5 in Virginia
- Wet days301st driest of 378
- Comfortable days219th most of 341
What to pack for Williamsburg in August
- Light, breathable clothing – highs near 87°F and about 24 muggy days
- A rain jacket or umbrella – rain on about 11 days
Heating and cooling
August has 0 heating degree days and 391 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.
Questions
How hot is Williamsburg in August?
The normal high is 87°F and the normal low is 69°F. From 1991 to 2020 the hottest August reading was 100°F (most recently on August 1, 1999).
Does it rain a lot in Williamsburg in August?
About 11 days in August have at least 0.01 in of precipitation, and the normal total is 5.7 in. The wettest August in 1991-2020 was in 2020 (16.1 in); the driest was in 1995 (1.4 in).
Is August a good time to visit Williamsburg?
August ranks 9th of 12 months on our comfort score for Williamsburg (45 out of 100). It has almost no comfortable days and about 10 days at 90°F or hotter. The best months are April and May.
Where the numbers come from
- Temperature, rain and frost dates: Williamsburg 2 N (USC00449151), 2.1 mi N of the city center, 70 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: W Pt 2 Nw (USC00449025), 21 mi NNW of the city center, 20 ft (65 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Newport News Intl Airport (USW00093741), 15 mi SE of the city center, 42 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Nwpt News/Wimburg Intl Apt (723086-93741), 15 mi SE of the city center, 36 ft . Hourly observations, 1991-2020.