Best time to visit San Bernardino, CA

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in San Bernardino runs from October through May — 8 months of pleasant temperatures and modest rainfall.

January Good
High
66.6°F
Low
41.1°F
Precip
2.76 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 9h 58m

February Good
High
67.4°F
Low
42.3°F
Precip
2.99 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 10h 46m

March Good
High
70.9°F
Low
44.6°F
Precip
2.01 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 11h 47m

April Good
High
75.6°F
Low
47.7°F
Precip
0.91 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 12h 52m

May Good
High
80.3°F
Low
52.4°F
Precip
0.35 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 13h 47m

June Hot
High
88.5°F
Low
56.4°F
Precip
0.10 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 14h 14m

July Hot
High
95.4°F
Low
62.5°F
Precip
0.10 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 14h 4m

August Hot
High
96.2°F
Low
62.9°F
Precip
0.09 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 13h 17m

September Hot
High
92.3°F
Low
59.6°F
Precip
0.13 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 12h 12m

October Good
High
82.9°F
Low
52.9°F
Precip
0.53 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 11h 7m

November Good
High
75.0°F
Low
45.3°F
Precip
0.89 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 10h 11m

December Good
High
66.5°F
Low
40.1°F
Precip
2.01 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 9h 44m

Looking for similar climates? See San Bernardino's climate twins. Or jump straight to the full climate profile.