Ottawa weather in August
In August, Ottawa sees average daytime highs of 24°C and overnight lows near 14°C, with 90 mm of rain across 11.1 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.
Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 28% of the time in August, and the air most often feels dry.
Daylight stretches from about 14 h 36 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Ottawa's 2nd-clearest and 12th-windiest month. For the whole year in context, see Ottawa's year-round climate.
- Daytime high
- 24°
- 2nd warmest
- Overnight low
- 14°
- 11th coldest
- Rainfall
- 90 mm
- 11.1 wet days
- Daylight
- 13 h 54 min
- 5:09 AM – 7:05 PM
- Cloud cover
- 59%
- 2nd clearest
- Wind
- 9 km/h
- 12th windiest
- Solar energy
- 5.07 kWh/m²
- Travel score
- 6.7
- out of 10
Ottawa is capital city of Canada.
- Air quality
- Good
- PM2.5 6 µg/m³ · 2019
- Density
- 366/km²
- people per km²
- Founded
- 1855
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 25°C in the first days to 23°C by the end.
A typical August day in Ottawa reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 29°C. Set against its neighbours, August runs about 1°C cooler than July and about 4°C warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 15 |
| 2 | 25 | 15 |
| 3 | 25 | 15 |
| 4 | 25 | 15 |
| 5 | 25 | 15 |
| 6 | 25 | 15 |
| 7 | 25 | 15 |
| 8 | 25 | 15 |
| 9 | 25 | 15 |
| 10 | 25 | 15 |
| 11 | 25 | 15 |
| 12 | 25 | 15 |
| 13 | 25 | 15 |
| 14 | 25 | 14 |
| 15 | 25 | 14 |
| 16 | 25 | 14 |
| 17 | 24 | 14 |
| 18 | 24 | 14 |
| 19 | 24 | 14 |
| 20 | 24 | 14 |
| 21 | 24 | 14 |
| 22 | 24 | 14 |
| 23 | 24 | 14 |
| 24 | 24 | 14 |
| 25 | 24 | 13 |
| 26 | 24 | 13 |
| 27 | 24 | 13 |
| 28 | 23 | 13 |
| 29 | 23 | 13 |
| 30 | 23 | 13 |
| 31 | 23 | 13 |
How August really feels in Ottawa
Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ottawa weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -6° / -15° | 73 | 10.5 | 9.7 | 8.9 | 0.0 |
| Feb | -4° / -14° | 57 | 8.7 | 8.1 | 10.1 | 0.0 |
| Mar | 2° / -8° | 73 | 9.9 | 6.8 | 11.6 | 0.0 |
| Apr | 11° / 1° | 90 | 11.1 | 3.2 | 13.2 | 2.6 |
| May | 19° / 7° | 88 | 11.4 | 0.2 | 14.7 | 5.6 |
| Jun | 23° / 12° | 99 | 11.7 | 0 | 15.4 | 6.4 |
| Jul | 26° / 15° | 98 | 12.4 | 0 | 15.1 | 6.4 |
| Aug | 24° / 14° | 90 | 11.1 | 0 | 13.9 | 6.7 |
| Sep | 20° / 10° | 95 | 10.4 | 0 | 12.3 | 6.2 |
| Oct | 12° / 4° | 99 | 12.3 | 0.7 | 10.7 | 3.1 |
| Nov | 5° / -2° | 83 | 11.4 | 4.4 | 9.3 | 0.4 |
| Dec | -2° / -9° | 79 | 11.4 | 9.1 | 8.6 | 0.0 |
Cloud cover in August
The sky is clear or mostly clear about 28% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 52%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 49 | 48 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 48 | 48 | 48 | 49 | 48 | 48 |
| Cloudier (%) | 52 | 52 | 52 | 53 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 51 | 51 | 51 | 52 | 51 | 51 | 51 | 51 | 52 | 52 | 52 | 52 | 52 | 52 | 51 | 52 | 52 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 48 | 52 |
| 2 | 48 | 52 |
| 3 | 48 | 52 |
| 4 | 47 | 53 |
| 5 | 47 | 53 |
| 6 | 47 | 53 |
| 7 | 47 | 53 |
| 8 | 48 | 52 |
| 9 | 48 | 52 |
| 10 | 48 | 52 |
| 11 | 48 | 52 |
| 12 | 48 | 52 |
| 13 | 49 | 51 |
| 14 | 49 | 51 |
| 15 | 49 | 51 |
| 16 | 49 | 51 |
| 17 | 49 | 51 |
| 18 | 48 | 52 |
| 19 | 49 | 51 |
| 20 | 49 | 51 |
| 21 | 49 | 51 |
| 22 | 49 | 51 |
| 23 | 48 | 52 |
| 24 | 48 | 52 |
| 25 | 48 | 52 |
| 26 | 48 | 52 |
| 27 | 48 | 52 |
| 28 | 48 | 52 |
| 29 | 49 | 51 |
| 30 | 48 | 52 |
| 31 | 48 | 52 |
Chance of precipitation in August
Ottawa gets around 90 mm of rain over 11.1 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 36% and peaks near 39% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 32 |
| Rain chance (%) | |
|---|---|
| 1 | 39 |
| 2 | 38 |
| 3 | 38 |
| 4 | 38 |
| 5 | 38 |
| 6 | 37 |
| 7 | 37 |
| 8 | 37 |
| 9 | 37 |
| 10 | 37 |
| 11 | 37 |
| 12 | 37 |
| 13 | 37 |
| 14 | 37 |
| 15 | 37 |
| 16 | 36 |
| 17 | 36 |
| 18 | 36 |
| 19 | 35 |
| 20 | 35 |
| 21 | 35 |
| 22 | 34 |
| 23 | 34 |
| 24 | 33 |
| 25 | 33 |
| 26 | 33 |
| 27 | 32 |
| 28 | 32 |
| 29 | 32 |
| 30 | 32 |
| 31 | 32 |
Humidity in August
Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the dry band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 29 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 37 | 38 | 39 | 40 | 42 | 43 | 44 | 46 |
| Comfortable (%) | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 27 | 26 | 26 |
| Humid (%) | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 27 | 26 | 26 | 25 | 24 | 23 | 22 | 21 | 21 | 20 | 19 | 19 | 18 |
| Muggy (%) | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 |
| Oppressive (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 23 | 28 | 32 | 15 | 2 |
| 2 | 23 | 28 | 32 | 15 | 2 |
| 3 | 23 | 28 | 32 | 15 | 1 |
| 4 | 24 | 28 | 32 | 15 | 1 |
| 5 | 24 | 29 | 32 | 14 | 1 |
| 6 | 24 | 29 | 32 | 14 | 1 |
| 7 | 24 | 29 | 32 | 13 | 1 |
| 8 | 25 | 29 | 32 | 13 | 1 |
| 9 | 25 | 30 | 32 | 12 | 1 |
| 10 | 25 | 30 | 31 | 12 | 1 |
| 11 | 26 | 30 | 31 | 12 | 1 |
| 12 | 26 | 30 | 31 | 11 | 1 |
| 13 | 27 | 31 | 31 | 11 | 1 |
| 14 | 27 | 31 | 30 | 11 | 1 |
| 15 | 28 | 31 | 30 | 10 | 1 |
| 16 | 29 | 31 | 29 | 10 | 1 |
| 17 | 29 | 31 | 29 | 10 | 1 |
| 18 | 30 | 31 | 28 | 10 | 1 |
| 19 | 31 | 31 | 27 | 10 | 1 |
| 20 | 32 | 31 | 26 | 10 | 0 |
| 21 | 33 | 30 | 26 | 10 | 0 |
| 22 | 34 | 30 | 25 | 10 | 0 |
| 23 | 36 | 30 | 24 | 11 | 0 |
| 24 | 37 | 29 | 23 | 11 | 0 |
| 25 | 38 | 29 | 22 | 11 | 0 |
| 26 | 39 | 29 | 21 | 11 | 0 |
| 27 | 40 | 28 | 21 | 10 | 0 |
| 28 | 42 | 28 | 20 | 10 | 0 |
| 29 | 43 | 27 | 19 | 10 | 0 |
| 30 | 44 | 26 | 19 | 10 | 0 |
| 31 | 46 | 26 | 18 | 10 | 1 |
Wind in August
Winds average 9 km/h in August, the calmest month.
Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in August
Daylight runs from about 14 h 36 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 84 minutes over August. Sunrise moves from 4:51 AM to 5:28 AM, and sunset from 7:27 PM to 6:38 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.6 | 14.6 | 14.5 | 14.5 | 14.4 | 14.4 | 14.3 | 14.3 | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.2 | 13.2 |
| Sunrise (AM) | 4:51 | 4:52 | 4:53 | 4:54 | 4:55 | 4:57 | 4:58 | 4:59 | 5:00 | 5:02 | 5:03 | 5:04 | 5:05 | 5:06 | 5:08 | 5:09 | 5:10 | 5:11 | 5:13 | 5:14 | 5:15 | 5:16 | 5:18 | 5:19 | 5:20 | 5:21 | 5:23 | 5:24 | 5:25 | 5:26 | 5:28 |
| Sunset (PM) | 7:27 | 7:26 | 7:24 | 7:23 | 7:22 | 7:20 | 7:19 | 7:17 | 7:16 | 7:14 | 7:13 | 7:11 | 7:10 | 7:08 | 7:07 | 7:05 | 7:03 | 7:02 | 7:00 | 6:58 | 6:56 | 6:55 | 6:53 | 6:51 | 6:49 | 6:47 | 6:46 | 6:44 | 6:42 | 6:40 | 6:38 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.6 | 4:51 | 7:27 |
| 2 | 14.6 | 4:52 | 7:26 |
| 3 | 14.5 | 4:53 | 7:24 |
| 4 | 14.5 | 4:54 | 7:23 |
| 5 | 14.4 | 4:55 | 7:22 |
| 6 | 14.4 | 4:57 | 7:20 |
| 7 | 14.3 | 4:58 | 7:19 |
| 8 | 14.3 | 4:59 | 7:17 |
| 9 | 14.3 | 5:00 | 7:16 |
| 10 | 14.2 | 5:02 | 7:14 |
| 11 | 14.2 | 5:03 | 7:13 |
| 12 | 14.1 | 5:04 | 7:11 |
| 13 | 14.1 | 5:05 | 7:10 |
| 14 | 14.0 | 5:06 | 7:08 |
| 15 | 14.0 | 5:08 | 7:07 |
| 16 | 13.9 | 5:09 | 7:05 |
| 17 | 13.9 | 5:10 | 7:03 |
| 18 | 13.8 | 5:11 | 7:02 |
| 19 | 13.8 | 5:13 | 7:00 |
| 20 | 13.7 | 5:14 | 6:58 |
| 21 | 13.7 | 5:15 | 6:56 |
| 22 | 13.6 | 5:16 | 6:55 |
| 23 | 13.6 | 5:18 | 6:53 |
| 24 | 13.5 | 5:19 | 6:51 |
| 25 | 13.5 | 5:20 | 6:49 |
| 26 | 13.4 | 5:21 | 6:47 |
| 27 | 13.4 | 5:23 | 6:46 |
| 28 | 13.3 | 5:24 | 6:44 |
| 29 | 13.3 | 5:25 | 6:42 |
| 30 | 13.2 | 5:26 | 6:40 |
| 31 | 13.2 | 5:28 | 6:38 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.07 kWh/m².
For context, solar energy here swings from a low near 1.19 kWh/m² to a high of 5.97 kWh/m² in June across the year — August's 5.07 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.5 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.4 | Bright |
| 6 | 5.4 | Bright |
| 7 | 5.4 | Bright |
| 8 | 5.3 | Bright |
| 9 | 5.3 | Bright |
| 10 | 5.3 | Bright |
| 11 | 5.3 | Bright |
| 12 | 5.2 | Bright |
| 13 | 5.2 | Bright |
| 14 | 5.2 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.0 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.6 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
| 31 | 4.5 | Bright |
Is August a good time to visit Ottawa?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Ottawa for sightseeing.
What to pack for Ottawa in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Ottawa sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.
UV index in Ottawa in August
Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ottawa peaks around July 14 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 4 | 6 | 7 | 8 | 5 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | Very high | Moderate | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 8 | Very high |
| Aug | 5 | Moderate |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Ottawa?
Ottawa sits at 45.4°N, 75.7°W, 71 m above sea level, in Canada. The nearest listed city is Centretown, 0.0 km away.
Topography around Ottawa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ottawa.
Within 3 km, the terrain around Ottawa has only modest variations in elevation — a maximum elevation change of 57 m around an average of 64 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 350 m; within 80 km, significant variations in elevation — a maximum elevation change of 585 m.
The land around Ottawa is covered by artificial surfaces (55%) and trees (20%) within 3 km, trees (42%) and artificial surfaces (24%) within 16 km, and trees (63%) and cropland (20%) within 80 km.
Canada travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 83% of US
- price level, 2025
- GDP per capita
- $55,698
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 2
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ottawa (45.4112°, -75.6981°, elevation 71 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).