Boston and San Diego — Comparison weather

Comparison weather

Learn where is warmer and colder where in any month of the year. Compare the day and night temperature, water temperature and precipitation. Where the sun shines longer, and where the rains.

You have chosen to compare the two cities:

— Boston (United States)
— San Diego (United States)

Most sunny months

Boston

San Diego

August		17 days
July		16 days
June		14 days

July		25 days
August		23 days
June		23 days

The warmest months

July		27.8 °C
August		27.2 °C
June		23.4 °C

August		26.3 °C
September		25.8 °C
July		24.7 °C

The warmest water (sea, ocean)

August		19.9 °C
July		19.3 °C
September		17.9 °C

August		21.2 °C
September		20.7 °C
July		20.7 °C

The coldest months

January		0.7 °C
February		1.5 °C
December		4.1 °C

December		17.3 °C
January		17.4 °C
February		17.5 °C

Rainiest months

June		5 days
April		5 days
December		4 days

January		2 days
February		2 days
March		2 days

Most windy months

January		17.8 km / h
March		17.5 km / h
February		17.2 km / h

May		12.3 km / h
April		12 km / h
March		11.4 km / h