Cape May Weather in August
During August, Cape May experiences high daytime temperatures of 29°C (84°F) and cooler nights around 20°C (68°F). Expect quite a bit of rainfall. Around 108 mm (4.3 in) is typical.
Rainfall in Cape May in August
Typically around 9 days of rainfall are expected, averaging 108 mm (4.3 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Cape May in August
Daytime highs in Cape May in August reach 29°C (84°F), with nights around 20°C (68°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 20°C (68°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Average water temperature in August
With water at 24°C (75°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If your ideal day consists of dry skies and pleasant temperatures, May and July typically offer the best circumstances for Cape May.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Cape May's climate page.
Cape May Temperature in August
Min Temperature
20°C (68°F)
Max Temperature
29°C (84°F)
Water Temperature
24°C (75°F)
Chance of Rain
30%
Precipitation
108 mm (4.3 in)
Rainy days
9 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cape May typically stay consistent throughout August, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows typically ranging from 18°C (64°F) to 21°C (70°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Cape May in August
Browse day-by-day weather records for Cape May spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cape May historical weather extremes in August
Based on weather observations in Cape May between 1976 and 2025, these are the recorded extremes during August.
- The warmest day in August was on August 15, 1988, with a maximum of 38°C (100°F).
- The coldest August day was on August 12, 1979, with a maximum of 19°C (66°F).
- Nighttime temperatures dropped to 8°C (46°F) on August 29, 1982, marking the coldest August night on record.
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Cape May in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 24°C (75°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear.What To Do in Cape May in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Cape May's climate page.
Temperature Rainfall Water Temp
See the full Cape May climate overview or explore weather in the United States of America.
