Ottawa weather in May (Illinois, United States of America)
Planning a trip to Ottawa in May? Here's what the weather might have in store during this month.
In May, Ottawa typically experiences high temperatures and high rainfall. Throughout the day, temperatures typically settle at around 23°C. But by evening, they drop to around 10°C.
Ottawa in May usually receives high rainfall, averaging around 113 mm for the month. Typically around 14 days of rainfall is expected.
If your ideal day consists of dry skies and moderate temperatures July and September generally stand out with the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Ottawa climate page with graphs.
Ottawa, monthly averages in May
Min Temperature
10°C
Max Temperature
23°C
Chance of Rain
47%
Precipitation
113 mm
Rainy days
14 days
Where to go in the United States of America in May
Find out more about the weather in the United States of America in May and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Ottawa in May?
For visitors traveling to Ottawa, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in May.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Ottawa.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
