Best time to visit Bethlehem, PA

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

The most comfortable travel window in Bethlehem runs from April through June — 3 months of pleasant temperatures and modest rainfall.

January Cold
High
38.4°F
Low
21.8°F
Precip
3.30 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 24m

February Cold
High
41.6°F
Low
23.2°F
Precip
2.77 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 26m

March Cool
High
50.8°F
Low
30.5°F
Precip
3.63 in

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

Daylight ≈ 11h 43m

April Good
High
63.4°F
Low
40.3°F
Precip
3.67 in

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

Daylight ≈ 13h 5m

May Excellent
High
73.5°F
Low
50.6°F
Precip
3.65 in

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

Daylight ≈ 14h 16m

June Good
High
81.9°F
Low
59.9°F
Precip
4.40 in

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

Daylight ≈ 14h 52m

July Wet
High
86.4°F
Low
64.7°F
Precip
5.30 in

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

Daylight ≈ 14h 38m

August Good
High
84.3°F
Low
62.8°F
Precip
4.56 in

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

Daylight ≈ 13h 37m

September Good
High
77.4°F
Low
55.2°F
Precip
4.84 in

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

Daylight ≈ 12h 15m

October Good
High
65.5°F
Low
43.8°F
Precip
4.14 in

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

Daylight ≈ 10h 53m

November Cool
High
53.8°F
Low
34.1°F
Precip
3.24 in

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

Daylight ≈ 9h 41m

December Cold
High
43.1°F
Low
26.8°F
Precip
3.86 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 6m

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