Weather in Duluth: May
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Average day temperature: | 56.9°F |
| Average night temperature: | 44.3°F | |
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Sea water temperature: | 41.8°F |
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Number of sunny days: | 10 days |
| Day length: | 14.4 - 15.6 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
| more information | ||
14 days
forecast
forecast
| Duluth |
sea water
temperature
temperature
| Duluth |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 76°F. At the same time the lowest night temperature was 32°F. Daily and nightly averages during May were 57.2°F and 44.7°F.
Sea water temperature in Duluth in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 43.2°F. The highest and lowest sea temperatures during the month were 49.8°F and 37.9°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Duluth in May is 1.1 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 7.7 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.6.
Best time for vacation in Duluth
Duluth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Duluth
Local time: 14:28
January 13, tuesday
1500
37°F
E
14 mph
14 mph
1800
34°F
E
13 mph
13 mph
2100
30°F
SE
19 mph
19 mph
January 14, wednesday
0000
18°F
SE
18 mph
18 mph
0300
10°F
S
17 mph
17 mph
0600
9°F
S
16 mph
16 mph
0900
7°F
S
15 mph
15 mph
1200
14°F
S
13 mph
13 mph
