Climate almanac
South Berwick
Maine, United States · 43.23°, -70.81°
What is the climate like in South Berwick?
The best time to visit South Berwick is typically August – September, with trip comfort peaking in September (7.0/10). South Berwick is warmest in July, when daily highs average 81°F (27°C), and coolest in January, when lows fall to about 23°F (-5°C). The wettest month is typically December and the driest is September; the year sees roughly 45 in (1144 mm) of precipitation.
- Best time to visitAugust – September — comfort peaks in September (7.0/10)
- Warmest monthJuly — average high 81°F (27°C)
- Coolest monthJanuary — average low 23°F (-5°C)
- Wettest monthDecember (5.1 in (129 mm))
- Driest monthSeptember (2.9 in (73 mm))
- Annual precipitation45 in (1144 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromDurham, 15 km away (1893-2026)