S
M
T
W
T
F
S
27
53°
38°
28
53°
42°
29
54°
44°
30
55°
47°
31
57°
43°
1
59°
44°
2
57°
46°
3
58°
40°
4
56°
39°
5
55°
44°
6
54°
44°
7
52°
48°
8
55°
48°
9
60°
47°
10
59°
44°
11
57°
48°
12
58°
49°
13
59°
45°
14
57°
47°
15
56°
49°
16
55°
39°
17
56°
42°
18
61°
43°
19
60°
48°
20
Hist. Avg.
58°
45°
21
Hist. Avg.
58°
45°
22
Hist. Avg.
58°
45°
23
Hist. Avg.
58°
45°
24
Hist. Avg.
58°
45°
25
Hist. Avg.
58°
45°
26
Hist. Avg.
59°
45°
27
Hist. Avg.
59°
45°
28
Hist. Avg.
59°
45°
29
Hist. Avg.
59°
45°
30
Hist. Avg.
59°
45°
31
Hist. Avg.
59°
45°
1
Hist. Avg.
59°
45°
2
Hist. Avg.
59°
45°
3
Hist. Avg.
60°
46°
4
Hist. Avg.
60°
46°
5
Hist. Avg.
60°
46°
6
Hist. Avg.
60°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in San Bruno
San Bruno's January 2027 forecast shows daily high temperatures ranging from 52° to 61°, with overnight lows between 38° and 49°. The average high for January is 57° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in San Bruno. See also: February | March | April.
