July 17 is generally a great time to visit Ottawa. While there is a slight chance of rain (34%), showers are usually brief. Expect comfortable 27°C weather. Ottawa is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Ottawa
Currency
CAD
$ Canadian dollar
Language
English
+1 more
Driving
Right side
Connect
The area codes for Ottawa are613and the ...
Safety
Very High Safety
GPI: 1.389
Ottawa Weather Forecast for July 17
"Warm & Sunny. Expect average highs of 26.7°C. 34% chance of rain."
What to Wear in Ottawa in July
Based on historical data for July 17, Ottawa typically experiences temperatures between 17.4°C and 26.7°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 34% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Ottawa
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
26.7°C
Daytime Peak
Average Low
17.4°C
Nighttime Low
Feels Like
27.8°C
☀️ Minor difference
Rain Chance
34%
Avg 2.7mm if it rains
Cloud Cover
53%
Overcast
Pressure
1012.7 hPa
Medium volatility
Ottawa Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 91% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 10:00
16:00 - 19:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.7°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Canada
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~177
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Ottawa
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:31
☀️ Noon
12:10
🌇 Sunset
19:48
⏱️ Daylight
15h 16m
Wind Speed
13.7 km/h
Gentle breeze
Sunshine
11.7 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Ottawa
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Ottawa
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Ottawa on July 17 averages 26.7°C with a 34% precipitation probability. Wedding/Outdoor Event Score: 93/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Ottawa Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
July 13
26.4°C • 26% rain
Score
97
July 14
26.7°C • 27% rain
Score
97
July 10
25.8°C • 29% rain
Score
96
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (July 17) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Ottawa Worth Visiting on July 17?
Planning a trip to Ottawa on July 17? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.7°C with a 34% historical precipitation risk.
✈️ Travel Logistics: Approximately 177 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Canada, including COVID-19.
📊 Historical Extremes: The hottest July 17 recorded in the last 30 years saw temperatures hit 30.5°C in 2022, while the coldest dropped to 15.7°C in 2016.