Sioux City Weather in May


Check the Weather in Sioux City, Iowa in May before you book your next holiday. This gives the best indication of the weather in May and includes figures for temperature, sunshine and rainfall.

The good news is that if you fancy going on holiday in May, you definitely won't have to fly as far as in previous months to find warm rays of sunshine, or even beach friendly weather. It's also early in the European holiday season, so hotels are freshly cleaned and it's generally uncrowded, even though the weather in May means temperatures aren't yet at their peak.

Max Daytime Temperature (°C) 23°C (73°F) Max Daytime Temperature in May in Sioux City 23°C (73°F) in May
Min Night-time Temperature (°C) 10°C (50°F) Min Night-time Temperature in May in Sioux City 10°C (50°F) in May
Hours of Sunshine (Daily) 9 Hours of Bright Sunshine per day (60% of Daylight Hours) in May in Sioux City 9 Hours per day in May
Hours of Daylight (Daily) 15 Hours of Daylight in May in Sioux City 15 Hours per day in May
Heat and Humidity Discomfort No heat & humidity in May in Sioux City None in May
Days with some Rainfall 11 Days with some Rainfall in May in Sioux City 11 Days in May
Monthly Rainfall (mm) 93 mm (3.7 inches) Monthly Rainfall in May in Sioux City 93 mm (3.7 inches) in May
UV Index (Maximum) UV (Maximum) Index 7 (High) in May in Sioux City 7 (High) in May
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Metric (°C)  |  Imperial (°F) 
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Map of Iowa

Select a destination from the Iowa Map to view the may weather guide. Alternatively, select from the list of destinations below the map. Can't find the Iowa weather destination you are after? Try the Destination Search.

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Sioux City weather by month

Check the weather for a particular month in Sioux City by selecting a month from the list below. Alternatively check which month usually has the Best Weather in Sioux City. If you are not sure where to go, why not try our Holiday Planner.


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