| < May >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Ottawa, Ontario in May is mild at 13 °C (55.4 °F).
- Afternoons can be somewhat warm with average high temperatures reaching 18.6 °C (65.5 °F).
- Overnight temperatures are generally a little cool with an average low of 7.3 °C (45.1 °F).
- In May there is a range/ variation of daily average temperatures of 11.3 °C (20.3 °F).
- The weather in May is somewhat dry with rain now and again. Just 76.8mm (3in) of fluid accrues across on average 11 days.
- In May the heavens above Ottawa, Ontario are a little sunny having on average a welcome 7:25 of blazing sunshine per day.
- The shortest day is 14:15 long and the longest day is 15:22 long with an average length of 14:52.
- There are approximately 7:15 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 50.6% of daylight hours and cloudy 49.4% of daylight hours.
Check the distance to and compare the Ottawa, Ontario May averages with somewhere beginning with:
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Weather Trend Graph for May in Ottawa, Ontario, Canada
Navigate to May Weather in Locations Surrounding Ottawa, Ontario:
- Maniwaki, Qc, Canada - 113.5 kms (70.5 miles) NNW
- Petawawa, On, Canada - 147.2 kms (91.4 miles) WNW
- Bonavista, Nf, Canada - 138.2 kms (85.9 miles) WNW
- Ottawa (Airport), Canada - 1.6 kms (1 miles) NNW
- Kingston, On, Canada - 142.1 kms (88.3 miles) SSW
- Watertown, Ny, Usa - 148.1 kms (92 miles) S
- Kuujjuarapik, Qc, Canada - 132.9 kms (82.6 miles) ENE
- Montreal, Quebec, Canada - 176.6 kms (109.7 miles) E
- Montreal/ Dorval, Qc, Canada - 150.2 kms (93.3 miles) E
- Canton, Ny, Usa - 62.2 kms (38.6 miles) ESE
- Ogdensburge, Ny, Usa - 62.2 kms (38.6 miles) ESE
- Lake Placid , Ny, Usa - 175.2 kms (108.9 miles) SE
- Lowville, Ny, Usa - 169.9 kms (105.6 miles) S