Delaware Weather in July

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

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Dover Newark Seaford Harrington

Considering a trip to Delaware, the United States of America this July and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Delaware in July

Delaware, the United States of America is a region in the United States of America. July in Delaware generally has very warm temperatures, with precipitation levels ranging from moderate to high. July is a summer month.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 21°C (70°F) in Dover. In Delaware, the United States of America, July typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

For specific regional insights in Delaware, the United States of America, refer to the map provided below.

Precipitation

In July, precipitation varies across different areas. From moderate rainfall in Bethany Beach with an average of 96 mm (3.8 in) to high rainfall in New Castle with 122 mm (4.8 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 July

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 July for some of the most popular destinations in Delaware, the United States of America?

Temperature range in Delaware (July)

Precipitation variation in Delaware (July)

Dover

In July Dover generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 21°C (70°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« June
July
August »
June
July
August
Max temperature
28°C (82°F)
31°C (88°F)
29°C (84°F)
Min temperature
18°C (64°F)
21°C (70°F)
20°C (68°F)
Monthly rainfall
130 mm (5.1 in)
103 mm (4.1 in)
110 mm (4.3 in)
Monthly rainy days
12 days
10 days
11 days
Weather conditions
pleasant
tolerable
pleasant
Climate in Dover →

Newark

In July Newark generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 20°C (68°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« June
July
August »
June
July
August
Max temperature
28°C (82°F)
31°C (88°F)
29°C (84°F)
Min temperature
17°C (63°F)
20°C (68°F)
18°C (64°F)
Monthly sun hours
272 hours
275 hours
260 hours
Monthly rainfall
155 mm (6.1 in)
116 mm (4.6 in)
118 mm (4.6 in)
Monthly rainy days
13 days
12 days
10 days
Weather conditions
pleasant
tolerable
pleasant
Climate in Newark →

Seaford

In July Seaford generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 21°C (70°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« June
July
August »
June
July
August
Max temperature
29°C (84°F)
31°C (88°F)
30°C (86°F)
Min temperature
18°C (64°F)
21°C (70°F)
19°C (66°F)
Monthly rainfall
137 mm (5.4 in)
109 mm (4.3 in)
110 mm (4.3 in)
Monthly rainy days
13 days
11 days
10 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Seaford →

Harrington

In July Harrington generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 20°C (68°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« June
July
August »
June
July
August
Max temperature
29°C (84°F)
31°C (88°F)
30°C (86°F)
Min temperature
18°C (64°F)
20°C (68°F)
19°C (66°F)
Monthly rainfall
114 mm (4.5 in)
102 mm (4 in)
117 mm (4.6 in)
Monthly rainy days
13 days
12 days
11 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Harrington →

Christiana

In July Christiana generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 20°C (68°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« June
July
August »
June
July
August
Max temperature
28°C (82°F)
31°C (88°F)
29°C (84°F)
Min temperature
17°C (63°F)
20°C (68°F)
19°C (66°F)
Monthly sun hours
272 hours
275 hours
260 hours
Monthly rainfall
157 mm (6.2 in)
120 mm (4.7 in)
112 mm (4.4 in)
Monthly rainy days
13 days
11 days
9 days
Weather conditions
pleasant
tolerable
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.

In our records: the United States of America July extremes

Notable July records observed across cities in the United States of America in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in the United States of America reached 51°C (124°F) in Palm Desert on July 28, 1995.

Popular cities in July

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

City Weather Day temp Night temp Rainfall
Dover 31°C (88°F) 21°C (70°F) 103 mm (4.1 in)
Newark 31°C (88°F) 20°C (68°F) 116 mm (4.6 in)
Seaford 31°C (88°F) 21°C (70°F) 109 mm (4.3 in)
Harrington 31°C (88°F) 20°C (68°F) 102 mm (4 in)
Christiana 31°C (88°F) 20°C (68°F) 120 mm (4.7 in)
Delaware City 31°C (88°F) 20°C (68°F) 120 mm (4.7 in)

Delaware weather in July: frequently asked questions

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

July in Delaware, the United States of America brings unpleasant weather. In Dover, daytime temperatures are typically around 31°C (88°F) and nighttime lows hover near 21°C (70°F).

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

In Dover, the average daytime high in July is 31°C (88°F), while nighttime temperatures drop to around 21°C (70°F).

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

Dover typically receives notable rainfall in July, about 103 mm (4.1 in) on average across Delaware, the United States of America.

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

Given the typically tolerable weather conditions in Dover, July might be a good time to visit Delaware, the United States of America. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May offering mostly perfect weather in Dover. The weather in January, February and December, on the other hand, tends to be poor.

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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