Nampa Weather Year-Round — Best Time to Visit
Nampa, United States has mild weather year-round. The best time to visit is August (score: 98/100). Annual average high: 18.1°C, total rainfall: 286mm.
When is the best time to visit Nampa?
98
August is the best month to visit Nampa with a travel score of 98/100 (Excellent).
Expect highs of 32.7°C, 1 rain days, and 13.2 hours of daily sunshine.
View August weather details →Travel Score by Month
51
Jan
61
Feb
70
Mar
78
Apr
86
May
95
Jun
98
Jul
98
Aug
97
Sep
83
Oct
63
Nov
49
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Nampa each month?
18.1°C
Avg High
6.7°C
Avg Low
286mm
Annual Rain
How much rain does Nampa get?
Nampa receives 286mm of rain annually. The wettest month is typically December with 44mm, while July is the driest.
What is the weather like each month in Nampa?
January
51
5°C
Low: -3°C
9 rain days
Mixed
February
61
8°C
Low: -2°C
7 rain days
Good
March
70
13°C
Low: 1°C
8 rain days
Good
April
78
17°C
Low: 5°C
6 rain days
Good
May
86
22°C
Low: 10°C
6 rain days
Excellent
June
95
28°C
Low: 14°C
3 rain days
Excellent
July
98
34°C
Low: 20°C
1 rain days
Excellent
August
Best time to visit98
33°C
Low: 18°C
1 rain days
Excellent
September
97
27°C
Low: 13°C
2 rain days
Excellent
October
83
18°C
Low: 7°C
4 rain days
Excellent
November
63
10°C
Low: 1°C
7 rain days
Good
December
49
4°C
Low: -3°C
9 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31