Harper Weather in May

What's the weather like in Harper (Maryland) in May 2025?

The climate in Harper during May can be summarized as hot, humid and very wet.

May is in the spring in Harper and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 23°C (72°F) is normal.

Harper weather averages (imperial / metric)
Daytime temperature 29.4°C 84.8°F
Nightly temperature 22.5°C 72.4°F
Average temperature 25.9°C 78.6°F
Daily sunshine 5.4 hrs
Avg rainfall 326 mm 12.8 ins
Rainy days 21 days
Sea temperature 29.1°C 84.4°F
Humidity 86%
Windspeed 9.4kph 6 mph

On average May is the 2nd wettest month of the year in Harper with around 326mm 12.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.4 hours of sunshine per day.

May temperatures in Harper

Harper average temperature in May

May rainfall

Harper average rain in May

May hourly sunshine

Harper average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Harper in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Harper weather stats

Harper weather statistics
Hottest month: April 30.7°C 87.3°F
Driest month: January 61mm 2.4ins
Sunniest month: November 7.2hrs
Coldest month: August 26.3°C 79.3°F
Wettest month: June 419mm 16.5ins
Map showing location of Harper (4.375, -7.71694) Harper map pin © Google

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