Climate almanac
Harwich
Massachusetts, United States · 41.69°, -70.08°
What is the weather like in Harwich in May?
In May, Harwich is typically 54°F (12°C) during the day and 50°F (10°C) at night. The month brings about 3.9 in (99 mm) of precipitation in total.
- Average high54°F (12°C)
- Average low50°F (10°C)
- Precipitation3.9 in (99 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)