Delaware Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Delaware, the United States of America in August.

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Dover Newark Seaford Harrington

Are you planning a trip a to Delaware, the United States of America in August and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Delaware in August

Delaware, the United States of America is a region in the United States of America. August in Delaware generally has warm temperatures, with high precipitation. It's the height of summer.

Temperatures

You can expect warm maximum daytime temperatures of around 29°C (84°F) and nighttime temperatures around 20°C (68°F) in Dover. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For a closer look at conditions across Delaware, the United States of America, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From high rainfall in Dover with an average of 110 mm (4.3 in) to high rainfall in Smyrna with 133 mm (5.2 in).

Explore Delaware by month

Pick a month to see the average temperature, rainfall and sunshine in Delaware — and find the best time to visit. (based on Dover)

January6°C (43°F) February7°C (45°F) March12°C (54°F) April18°C (64°F) May23°C (73°F) June28°C (82°F) This monthJuly31°C (88°F) August29°C (84°F) September26°C (79°F) October20°C (68°F) November14°C (57°F) December10°C (50°F)
Best Time to Visit Delaware →

Best Places to Visit in Delaware in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Delaware.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Delaware

What is the weather like in August for some of the most popular destinations in Delaware, the United States of America?

Temperature range in Delaware (August)

Precipitation variation in Delaware (August)

Dover

In August Dover generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 20°C (68°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
29°C (84°F)
26°C (79°F)
Min temperature
21°C (70°F)
20°C (68°F)
16°C (61°F)
Monthly rainfall
103 mm (4.1 in)
110 mm (4.3 in)
109 mm (4.3 in)
Monthly rainy days
10 days
11 days
8 days
Weather conditions
tolerable
pleasant
pleasant
Climate in Dover →

Newark

In August Newark generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
29°C (84°F)
26°C (79°F)
Min temperature
20°C (68°F)
18°C (64°F)
15°C (59°F)
Monthly sun hours
275 hours
260 hours
218 hours
Monthly rainfall
116 mm (4.6 in)
118 mm (4.6 in)
118 mm (4.6 in)
Monthly rainy days
12 days
10 days
9 days
Weather conditions
tolerable
pleasant
pleasant
Climate in Newark →

Seaford

In August Seaford generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
30°C (86°F)
27°C (81°F)
Min temperature
21°C (70°F)
19°C (66°F)
16°C (61°F)
Monthly rainfall
109 mm (4.3 in)
110 mm (4.3 in)
138 mm (5.4 in)
Monthly rainy days
11 days
10 days
9 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Seaford →

Harrington

In August Harrington generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
30°C (86°F)
27°C (81°F)
Min temperature
20°C (68°F)
19°C (66°F)
16°C (61°F)
Monthly rainfall
102 mm (4 in)
117 mm (4.6 in)
119 mm (4.7 in)
Monthly rainy days
12 days
11 days
9 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Harrington →

Christiana

In August Christiana generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
31°C (88°F)
29°C (84°F)
26°C (79°F)
Min temperature
20°C (68°F)
19°C (66°F)
15°C (59°F)
Monthly sun hours
275 hours
260 hours
218 hours
Monthly rainfall
120 mm (4.7 in)
112 mm (4.4 in)
112 mm (4.4 in)
Monthly rainy days
11 days
9 days
8 days
Weather conditions
tolerable
pleasant
pleasant
Climate in Christiana →

Is your destination not in the list? Have a look at all destinations in Delaware, in the United States of America.

Popular cities in August

Day & night temperatures, rainfall and average weather in Delaware in August.

City Weather Day temp Night temp Rainfall
Dover 29°C (84°F) 20°C (68°F) 110 mm (4.3 in)
Newark 29°C (84°F) 18°C (64°F) 118 mm (4.6 in)
Seaford 30°C (86°F) 19°C (66°F) 110 mm (4.3 in)
Harrington 30°C (86°F) 19°C (66°F) 117 mm (4.6 in)
Christiana 29°C (84°F) 19°C (66°F) 112 mm (4.4 in)
Delaware City 29°C (84°F) 19°C (66°F) 118 mm (4.6 in)

Delaware weather in August: frequently asked questions

What is the weather like in Delaware, the United States of America in August?

Expect pleasant weather across Delaware, the United States of America in August. The popular destination of Dover averages 29°C (84°F) by day and 20°C (68°F) at night during this summer month.

What is the average temperature in Delaware, the United States of America in August?

Daytime temperatures in Dover peak at roughly 29°C (84°F) in August, dropping to about 20°C (68°F) overnight.

Does Delaware, the United States of America get a lot of rain in August?

Dover typically receives notable rainfall in August, about 110 mm (4.3 in) on average across Delaware, the United States of America.

Is August a Good Time to Visit Delaware, the United States of America?

In our opinion, August is a good time to visit Delaware, the United States of America with overall pleasant weather in Dover. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in May offering mostly perfect weather in Dover. In contrast, January, February and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Delaware.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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