Cape May, NJ weather in August
August in Cape May: warm and often humid, with some rain. Highs 84°F, lows 67°F, about 9 days with rain. This is the peak of the warm season in Cape May.
- Normal high
- 84°F
- Normal low
- 67°F
- Wet days
- 9
- 4.0 in total
- Muggy days
- 18
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 86°F | 83°F |
| Normal low | 68°F | 66°F |
| Chance of a wet day | 32% | 28% |
| Sunrise / sunset | 6:00 am / 8:11 pm | 6:27 am / 7:32 pm |
| Daylight | 14.2 h | 13.1 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 am69°Fdew point 66°F
- 9 am77°Fdew point 68°F
- Noon82°Fdew point 67°F
- 3 pm82°Fdew point 66°F
- 6 pm79°Fdew point 66°F
- 9 pm73°Fdew point 67°F
NOAA hourly normals (local standard time) from Dover AFB (33 mi away); average wind 7 mph; clear or few clouds in 46% of daytime hours, mostly cloudy or overcast in 37%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F2 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph22 of 31
- Hot dayshigh 90°F or more4 of 31
- Muggy daysdaily mean dew point 65°F or more18 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in5 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 4.0 in; a dry August brings about 2.3 in and a wet one about 5.5 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202016: average high 89°F
- Coolest August1994: average high 80°F
- Wettest August2011: 9.2 in
- Driest August2006: 0.5 in
- Highest reading99°F (August 14, 2016)
- Lowest reading51°F (August 19, 1998)
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 | 86°F | 84°F | 79°F |
| Normal low | 68°F | 67°F | 62°F |
| Wet days | 10 | 9 | 9 |
| Comfortable days | 1 | 2 | 12 |
| Daylight | 14.6 h | 13.7 h | 12.4 h |
Highs change by -2°F from July and -5°F into September.
How Cape May ranks in August
- Normal high223rd warmest of 378 cities; 3rd of 3 in New Jersey
- Wet days190th driest of 378
- Comfortable days170th most of 341
What to pack for Cape May in August
- A rain jacket or umbrella – rain on about 9 days
- A swimsuit – about 22 beach days
Heating and cooling
August has 0 heating degree days and 334 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How hot is Cape May in August?
The normal high is 84°F and the normal low is 67°F. From 1991 to 2020 the hottest August reading was 99°F (August 14, 2016).
Does it rain a lot in Cape May in August?
About 9 days in August have at least 0.01 in of precipitation, and the normal total is 4.0 in. The wettest August in 1991-2020 was in 2011 (9.2 in); the driest was in 2006 (0.5 in).
Is August a good time to visit Cape May?
August ranks 6th of 12 months on our comfort score for Cape May (53 out of 100). It has about 2 comfortable days and about 4 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Cape May 2 Nw (USC00281351), 2.0 mi NW of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Dover AFB (USW00013707), 33 mi WNW of the city center, 23 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Millville Municipal Arpt (724075-13735), 31 mi NNW of the city center, 58 ft (51 ft higher than the city). Hourly observations, 1991-2020.