World Resorts USA Grand Canyon Weather

Grand Canyon weather in May

Weather in Grand Canyon: May

Average day temperature: 69.4°F
Average night temperature: 51.7°F
Number of sunny days: 26 days
Day length: 13.7 - 14.5 hours
Number of rainy days: 2 days
Precipitation totals: 0.8 in.

Air temperature in May, °F

Show year:
2026
2025
2024

The highest day temperature during May of 2026 was 86°F. At the same time the lowest night temperature was 40°F. Daily and nightly averages during May were 71.7°F and 56.8°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are sunny but cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Grand Canyon in May is 0.8 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 10.0 mph It makes May one of the most windy months of the year.

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: 12.3.

Best time for vacation in Grand Canyon

Sunniest months:
June 27 days
May 26 days
October 26 days
Warmest months:
July 86.4 °F
August 84.3 °F
June 83.1 °F
Coldest months:
January 42.2 °F
December 43.9 °F
February 45.7 °F
Rainiest months:
July 6 days
August 5 days
September 3 days
Windiest months:
April 10.8 mph
May 10.7 mph
June 10.5 mph

Grand Canyon on a weather map

Grand Canyon
+73°F
N 6 mph
Feels like: +72°F
Precip.: 0%
Places in USA:
Name
°F
+73°F
+73°F
+79°F
+64°F
+82°F
+82°F
+68°F
+79°F
+64°F
+55°F
+63°F
+84°F
+84°F
+79°F
+59°F
24 Hours Forecast
Grand Canyon
Local time: 04:54
June 12, friday
0600
73°F
N
6 mph
0900
81°F
NE
9 mph
1200
86°F
E
14 mph
1500
90°F
E
15 mph
1800
86°F
E
14 mph
2100
79°F
NE
6 mph
June 13, saturday
0000
75°F
N
9 mph
0300
72°F
N
7 mph
Units of measurement: °C / °F