Marietta Weather Year-Round — Best Time to Visit
Marietta, United States has mild weather year-round. The best time to visit is May (score: 84/100). Annual average high: 21.2°C, total rainfall: 1266mm.
When is the best time to visit Marietta?
84
May is the best month to visit Marietta with a travel score of 84/100 (Excellent).
Expect highs of 25.8°C, 10 rain days, and 10.9 hours of daily sunshine.
View May weather details →Travel Score by Month
56
Jan
60
Feb
69
Mar
80
Apr
84
May
80
Jun
77
Jul
80
Aug
84
Sep
81
Oct
69
Nov
57
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Marietta each month?
21.2°C
Avg High
11.6°C
Avg Low
1266mm
Annual Rain
How much rain does Marietta get?
Marietta receives 1266mm of rain annually. The wettest month is typically July with 132mm, while October is the driest.
What is the weather like each month in Marietta?
January
56
10°C
Low: 1°C
10 rain days
Mixed
February
60
13°C
Low: 3°C
10 rain days
Mixed
March
69
17°C
Low: 7°C
10 rain days
Good
April
80
21°C
Low: 10°C
9 rain days
Good
May
Best time to visit84
26°C
Low: 15°C
10 rain days
Excellent
June
80
29°C
Low: 20°C
13 rain days
Good
July
77
30°C
Low: 21°C
15 rain days
Good
August
80
30°C
Low: 21°C
13 rain days
Good
September
84
27°C
Low: 18°C
9 rain days
Excellent
October
81
22°C
Low: 12°C
7 rain days
Excellent
November
69
16°C
Low: 7°C
8 rain days
Good
December
57
12°C
Low: 3°C
10 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31