Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Ottawa (KS) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ottawa.
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Climate overview of Ottawa
Ottawa, Kansas, United States of America, sees big temperature differences between seasons, with July peaking at 32°C (90°F) and January dropping to 5°C (41°F).
The city receives around 997 mm (39 in) of rain/snowfall per year. It experiences very warm summers and cold winters. May is the wettest month and January the driest. Sunshine peaks in July, when the city sees around 10.9 hours of sunshine per day.
Ottawa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ottawa - and find the best time to visit.
Monthly Temperature in Ottawa
Visitors to Ottawa can expect significant temperature changes throughout the year. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 20°C (68°F) in July to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ottawa
Generally, Ottawa experiences moderate precipitation patterns, averaging 997 mm (39 in) yearly. The seasons in Ottawa bring significant changes in precipitation. The wettest month, May, receives high rainfall, with an average of 138 mm (5.4 in) of precipitation. This rainfall is distributed across 14 rainy days.
In contrast, the driest month, January, experiences much less snow/rainfall, totaling 19 mm (0.7 in) over 5 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Ottawa Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Ottawa
In Ottawa, summer days are longer and more sunny, with daily sunshine hours peaking at 10.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Topeka, the United States of America (59 KM, 37 Miles).
Daily hours of sunshine
Data from: Topeka, the United States of America (59 KM, 37 Miles).
Daily percentage of sunshine
Data from: Topeka, the United States of America (59 KM, 37 Miles).
Humidity in Ottawa by Month
The relative humidity is high throughout the year in Ottawa.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Topeka, the United States of America (59 KM, 37 Miles).
Best Time to Visit Ottawa
For comfortable weather, consider visiting Ottawa in October. Conditions are usually least favourable in February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
mixed
Feb
cold
Mar
good
Apr
very good
May
very good
Jun
mixed
Jul
mixed
Aug
good
Sep
very good
Oct
excellent
Nov
good
Dec
cold
- Best overall: October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: January, February and November
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Ottawa
What is the best time to visit Ottawa?
October typically offers the most optimal weather in Ottawa. In contrast, February and December tend to have less optimal conditions. Ottawa has very warm summers and cold winters.
What temperatures can I expect in Ottawa?
Daytime highs range from 5°C (41°F) in January to 32°C (90°F) in July. Nighttime lows range from -7°C (19°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Ottawa get?
Annual rainfall is around 997 mm (39 in). May is the wettest month with 138 mm (5.4 in), while January is the driest with 19 mm (0.7 in).
How sunny is Ottawa?
Ottawa receives around 2,723 hours of sunshine per year. July is the sunniest month with 327 hours, while December is the cloudiest with just 151 hours. Overall, Ottawa enjoys abundant sunshine.
Ottawa 3-Day Forecast
Ottawa on the map
Ottawa is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Miami Beach
29°C (84°F) Orlando29°C (84°F) Kissimmee
29°C (84°F) Destin26°C (79°F) Los Angeles24°C (75°F) New York City19°C (66°F) Big Bear Lake19°C (66°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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