Climateby Month

Chesapeake, VA weather in August

NOAA 1991-2020 normals and daily records · Chesapeake all year

Expect warm, oppressively humid weather with frequent rain in Chesapeake in August, with highs near 87°F and lows near 72°F. Rain falls on about 10 days. It is one of the warmest months in Chesapeake.

Normal high
87°F
Normal low
72°F
Wet days
10
5.9 in total
Muggy days
25
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high89°F85°F
Normal low73°F70°F
Chance of a wet day36%32%
Sunrise / sunset6:10 am / 8:12 pm6:35 am / 7:35 pm
Daylight14.0 h13.0 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

  1. 6 am74°Fdew point 69°F
  2. 9 am80°Fdew point 69°F
  3. Noon83°Fdew point 69°F
  4. 3 pm84°Fdew point 68°F
  5. 6 pm81°Fdew point 69°F
  6. 9 pm77°Fdew point 69°F

NOAA hourly normals (local standard time) from Norfolk Intl Airport (7 mi away); average wind 8 mph; clear or few clouds in 46% of daytime hours, mostly cloudy or overcast in 33%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph18 of 31
  • Hot dayshigh 90°F or more9 of 31
  • Muggy daysdaily mean dew point 65°F or more25 of 31
  • Wet daysat least 0.01 in of rain or melted snow10 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 5.9 in; a dry August brings about 3.6 in and a wet one about 8.1 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, 1991-20202006: average high 90°F
  • Coolest August1996: average high 81°F
  • Wettest August1992: 14.3 in
  • Driest August1993: 1.4 in
  • Highest reading102°F (August 3, 2006)
  • Lowest reading57°F (August 25, 1994)

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

JulyAugustSeptember
Normal high89°F87°F81°F
Normal low73°F72°F67°F
Wet days11109
Comfortable days117
Daylight14.4 h13.5 h12.4 h

Highs change by -2°F from July and -6°F into September.

How Chesapeake ranks in August

  • Normal high177th warmest of 378 cities; 2nd of 5 in Virginia
  • Wet days274th driest of 378
  • Comfortable days203rd most of 341

What to pack for Chesapeake in August

  • Light, breathable clothing – highs near 87°F and about 25 muggy days
  • A rain jacket or umbrella – rain on about 10 days
  • A swimsuit – about 18 beach days

Heating and cooling

August has 0 heating degree days and 442 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.

Questions

How hot is Chesapeake in August?

The normal high is 87°F and the normal low is 72°F. From 1991 to 2020 the hottest August reading was 102°F (August 3, 2006).

Does it rain a lot in Chesapeake in August?

About 10 days in August have at least 0.01 in of precipitation, and the normal total is 5.9 in. The wettest August in 1991-2020 was in 1992 (14.3 in); the driest was in 1993 (1.5 in).

Is August a good time to visit Chesapeake?

August ranks 9th of 12 months on our comfort score for Chesapeake (46 out of 100). It has about 1 comfortable day and about 9 days at 90°F or hotter. The best months are April, May and October.

Where the numbers come from

  • Temperature, rain, snowfall, frost dates, humidity and wind by hour and cloud cover: Norfolk Intl Airport (USW00013737), 7.4 mi NE of the city center, 30 ft . NOAA normals and daily records, 1991-2020.
  • Snow depth: Suffolk Lake Kilby (USC00448192), 19 mi WSW of the city center, 22 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Norfolk International Airport (723080-13737), 7.4 mi NE of the city center, 11 ft . Hourly observations, 1991-2020.