Weather in Boston in Summer
| June | July | August | ||||
| Average day temperature: | 74.2°F | 81.9°F | 80.5°F | |||
| Average night temperature: | 61.5°F | 68.3°F | 67.1°F | |||
| Sea water temperature: | 60.2°F | 66.7°F | 67.6°F | |||
| Number of sunny days: | 13 days | 15 days | 16 days | |||
| Day length: | 15.1 - 15.3 h. | 14.5 - 15.2 h. | 13.2 - 14.4 h. | |||
| Number of rainy days: | 5 days | 4 days | 3 days | |||
| Precipitation totals: | 2.6 in. | 2.7 in. | 1.9 in. | |||
Day & Night air temperature, °F
June
July
August
0
13
26
39
52
65
78
91
104
80.5
81.5
74.4
68.1
69.0
62.2
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
11
22
33
44
55
66
77
88
67.6
66.7
60.2
Precipitation total, in.
June
July
August
0.0
0.6
1.1
1.7
2.2
2.8
3.4
3.9
1.6
3.3
2.3
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
7
9
8
10
10
11
14
13
11
| Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
June
July
August
0.0
1.4
2.7
4.1
5.5
6.9
8.2
9.6
7.3
7.2
8
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
9
10
7.6
8
8.4
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Boston
Boston on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Boston
Local time: 12:53
March 26, wednesday
1500
46°F
E
6 mph
6 mph
1800
45°F
SE
7 mph
7 mph
2100
41°F
E
9 mph
9 mph
March 27, thursday
0000
37°F
SE
9 mph
9 mph
0300
32°F
E
10 mph
10 mph
0600
32°F
E
9 mph
9 mph
0900
37°F
SE
13 mph
13 mph
1200
43°F
SE
11 mph
11 mph
