Best time to visit Clayton, CA

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

The most comfortable travel window in Clayton runs from March through November — 9 months of pleasant temperatures and modest rainfall.

January Wet
High
53.7°F
Low
41.7°F
Precip
5.06 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 9h 39m

February Cool
High
54.6°F
Low
41.7°F
Precip
4.90 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 10h 35m

March Good
High
57.9°F
Low
42.9°F
Precip
3.69 in

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

Daylight ≈ 11h 45m

April Good
High
62.0°F
Low
44.4°F
Precip
1.92 in

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

Daylight ≈ 12h 59m

May Good
High
67.8°F
Low
49.3°F
Precip
1.13 in

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

Daylight ≈ 14h 3m

June Excellent
High
75.9°F
Low
55.4°F
Precip
0.27 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 14h 35m

July Good
High
82.5°F
Low
61.5°F
Precip
0.01 in

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

Daylight ≈ 14h 23m

August Good
High
82.8°F
Low
61.0°F
Precip
0.03 in

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

Daylight ≈ 13h 28m

September Excellent
High
80.0°F
Low
59.7°F
Precip
0.12 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 12h 14m

October Excellent
High
71.7°F
Low
54.0°F
Precip
1.19 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 10h 59m

November Good
High
60.4°F
Low
46.2°F
Precip
2.65 in

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

Daylight ≈ 9h 54m

December Wet
High
53.4°F
Low
41.3°F
Precip
5.08 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 9h 23m

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