Port Colborne weather in August
In August, Port Colborne sees average daytime highs of 24°C and overnight lows near 20°C, with 90 mm of rain across 10.9 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.
Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 38% of the time in August, and the air most often feels humid.
Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Port Colborne's 1st-clearest and 12th-windiest month. For the whole year in context, see Port Colborne's year-round climate.
- Daytime high
- 24°
- 2nd warmest
- Overnight low
- 20°
- 11th coldest
- Rainfall
- 90 mm
- 10.9 wet days
- Daylight
- 13 h 48 min
- 5:28 AM – 7:14 PM
- Cloud cover
- 51%
- 1st clearest
- Wind
- 14 km/h
- 12th windiest
- Solar energy
- 5.39 kWh/m²
- Travel score
- 6.9
- out of 10
Port Colborne is city in Niagara Region, Ontario, Canada.
- Founded
- 1830
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 24°C through the month.
A typical August day in Port Colborne reaches about 24°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, August runs on par with 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) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 20 |
| 2 | 25 | 20 |
| 3 | 25 | 20 |
| 4 | 25 | 20 |
| 5 | 25 | 20 |
| 6 | 25 | 20 |
| 7 | 25 | 20 |
| 8 | 25 | 20 |
| 9 | 25 | 20 |
| 10 | 25 | 20 |
| 11 | 25 | 20 |
| 12 | 24 | 20 |
| 13 | 24 | 20 |
| 14 | 24 | 20 |
| 15 | 24 | 20 |
| 16 | 24 | 20 |
| 17 | 24 | 20 |
| 18 | 24 | 20 |
| 19 | 24 | 19 |
| 20 | 24 | 19 |
| 21 | 24 | 19 |
| 22 | 24 | 19 |
| 23 | 24 | 19 |
| 24 | 24 | 19 |
| 25 | 24 | 19 |
| 26 | 24 | 19 |
| 27 | 24 | 19 |
| 28 | 24 | 19 |
| 29 | 23 | 19 |
| 30 | 23 | 19 |
| 31 | 23 | 18 |
How August really feels in Port Colborne
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.
Port Colborne weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -1° / -6° | 77 | 12.4 | 8.7 | 9.2 | 0.0 |
| Feb | -1° / -6° | 60 | 9.4 | 7 | 10.2 | 0.0 |
| Mar | 3° / -3° | 77 | 10.9 | 4.8 | 11.6 | 0.0 |
| Apr | 9° / 4° | 100 | 11.9 | 1.8 | 13.1 | 1.7 |
| May | 16° / 11° | 90 | 12.2 | 0 | 14.4 | 4.8 |
| Jun | 22° / 17° | 103 | 12.1 | 0 | 15.1 | 6.4 |
| Jul | 25° / 20° | 105 | 12 | 0 | 14.8 | 6.7 |
| Aug | 24° / 20° | 90 | 10.9 | 0 | 13.8 | 6.9 |
| Sep | 21° / 16° | 90 | 10.3 | 0 | 12.3 | 6.4 |
| Oct | 14° / 10° | 98 | 12.4 | 0.1 | 10.8 | 3.9 |
| Nov | 8° / 4° | 85 | 11.6 | 2.5 | 9.5 | 1.2 |
| Dec | 3° / -1° | 83 | 12 | 6.8 | 8.9 | 0.0 |
Cloud cover in August
The sky is clear or mostly clear about 38% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 38%.
| 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 (%) | 61 | 61 | 62 | 62 | 62 | 62 | 63 | 63 | 64 | 64 | 64 | 65 | 64 | 64 | 65 | 64 | 64 | 63 | 63 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 59 | 59 |
| Cloudier (%) | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 36 | 36 | 35 | 36 | 36 | 37 | 37 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 41 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 61 | 39 |
| 2 | 61 | 39 |
| 3 | 62 | 38 |
| 4 | 62 | 38 |
| 5 | 62 | 38 |
| 6 | 62 | 38 |
| 7 | 63 | 37 |
| 8 | 63 | 37 |
| 9 | 64 | 36 |
| 10 | 64 | 36 |
| 11 | 64 | 36 |
| 12 | 65 | 35 |
| 13 | 64 | 36 |
| 14 | 64 | 36 |
| 15 | 65 | 35 |
| 16 | 64 | 36 |
| 17 | 64 | 36 |
| 18 | 63 | 37 |
| 19 | 63 | 37 |
| 20 | 62 | 38 |
| 21 | 62 | 38 |
| 22 | 62 | 38 |
| 23 | 61 | 39 |
| 24 | 61 | 39 |
| 25 | 61 | 39 |
| 26 | 61 | 39 |
| 27 | 61 | 39 |
| 28 | 61 | 39 |
| 29 | 61 | 39 |
| 30 | 59 | 41 |
| 31 | 59 | 41 |
Chance of precipitation in August
Port Colborne gets around 90 mm of rain over 10.9 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 41% 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 (%) | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 |
| Rain chance (%) | |
|---|---|
| 1 | 41 |
| 2 | 41 |
| 3 | 40 |
| 4 | 40 |
| 5 | 40 |
| 6 | 39 |
| 7 | 39 |
| 8 | 39 |
| 9 | 38 |
| 10 | 38 |
| 11 | 38 |
| 12 | 38 |
| 13 | 37 |
| 14 | 37 |
| 15 | 37 |
| 16 | 36 |
| 17 | 36 |
| 18 | 35 |
| 19 | 35 |
| 20 | 34 |
| 21 | 34 |
| 22 | 33 |
| 23 | 33 |
| 24 | 32 |
| 25 | 32 |
| 26 | 31 |
| 27 | 31 |
| 28 | 31 |
| 29 | 31 |
| 30 | 31 |
| 31 | 31 |
Humidity in August
Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the humid band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 34% 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 (%) | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 18 | 19 |
| Comfortable (%) | 19 | 19 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 |
| Humid (%) | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 31 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 28 | 28 |
| Muggy (%) | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 22 |
| Oppressive (%) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 9 | 19 | 33 | 29 | 10 | 1 |
| 2 | 9 | 19 | 33 | 29 | 10 | 1 |
| 3 | 9 | 20 | 33 | 28 | 10 | 1 |
| 4 | 9 | 20 | 32 | 28 | 10 | 1 |
| 5 | 10 | 20 | 32 | 27 | 10 | 1 |
| 6 | 10 | 20 | 32 | 27 | 10 | 1 |
| 7 | 10 | 21 | 32 | 27 | 10 | 1 |
| 8 | 11 | 21 | 31 | 26 | 10 | 1 |
| 9 | 11 | 21 | 32 | 27 | 9 | 0 |
| 10 | 11 | 22 | 31 | 26 | 9 | 0 |
| 11 | 11 | 22 | 31 | 26 | 9 | 0 |
| 12 | 12 | 22 | 31 | 26 | 8 | 0 |
| 13 | 12 | 23 | 31 | 26 | 8 | 0 |
| 14 | 12 | 23 | 31 | 26 | 8 | 0 |
| 15 | 12 | 23 | 31 | 26 | 7 | 0 |
| 16 | 12 | 23 | 32 | 26 | 7 | 0 |
| 17 | 12 | 23 | 32 | 26 | 6 | 0 |
| 18 | 12 | 23 | 32 | 26 | 6 | 0 |
| 19 | 12 | 23 | 32 | 26 | 6 | 0 |
| 20 | 13 | 23 | 32 | 26 | 6 | 0 |
| 21 | 13 | 23 | 32 | 26 | 6 | 0 |
| 22 | 13 | 23 | 32 | 26 | 6 | 0 |
| 23 | 14 | 24 | 31 | 25 | 6 | 0 |
| 24 | 14 | 24 | 31 | 25 | 6 | 0 |
| 25 | 15 | 24 | 30 | 25 | 6 | 0 |
| 26 | 15 | 24 | 30 | 24 | 6 | 0 |
| 27 | 16 | 25 | 30 | 24 | 6 | 0 |
| 28 | 16 | 25 | 29 | 24 | 6 | 0 |
| 29 | 17 | 25 | 29 | 23 | 6 | 0 |
| 30 | 18 | 25 | 28 | 23 | 6 | 0 |
| 31 | 19 | 25 | 28 | 22 | 6 | 0 |
Wind in August
Winds average 14 km/h in August, the calmest month.
Across August, daily wind ranges from about 14 km/h on the calmest days to 15 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) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 14 | light breeze |
| 2 | 14 | light breeze |
| 3 | 14 | light breeze |
| 4 | 14 | light breeze |
| 5 | 14 | light breeze |
| 6 | 14 | light breeze |
| 7 | 14 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 14 | light breeze |
| 13 | 14 | light breeze |
| 14 | 14 | light breeze |
| 15 | 14 | light breeze |
| 16 | 14 | light breeze |
| 17 | 14 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 15 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
| 31 | 15 | light breeze |
Sunrise & sunset in August
Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 78 minutes over August. Sunrise moves from 5:12 AM to 5:45 AM, and sunset from 7:34 PM to 6:49 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) | 14.4 | 14.3 | 14.3 | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 |
| Sunrise (AM) | 5:12 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:22 | 5:24 | 5:25 | 5:26 | 5:27 | 5:28 | 5:29 | 5:30 | 5:31 | 5:32 | 5:34 | 5:35 | 5:36 | 5:37 | 5:38 | 5:39 | 5:40 | 5:41 | 5:43 | 5:44 | 5:45 |
| Sunset (PM) | 7:34 | 7:33 | 7:32 | 7:31 | 7:29 | 7:28 | 7:27 | 7:26 | 7:24 | 7:23 | 7:21 | 7:20 | 7:19 | 7:17 | 7:16 | 7:14 | 7:13 | 7:11 | 7:09 | 7:08 | 7:06 | 7:05 | 7:03 | 7:01 | 7:00 | 6:58 | 6:56 | 6:54 | 6:53 | 6:51 | 6:49 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.4 | 5:12 | 7:34 |
| 2 | 14.3 | 5:13 | 7:33 |
| 3 | 14.3 | 5:14 | 7:32 |
| 4 | 14.3 | 5:15 | 7:31 |
| 5 | 14.2 | 5:16 | 7:29 |
| 6 | 14.2 | 5:17 | 7:28 |
| 7 | 14.1 | 5:18 | 7:27 |
| 8 | 14.1 | 5:19 | 7:26 |
| 9 | 14.1 | 5:20 | 7:24 |
| 10 | 14.0 | 5:21 | 7:23 |
| 11 | 14.0 | 5:22 | 7:21 |
| 12 | 13.9 | 5:24 | 7:20 |
| 13 | 13.9 | 5:25 | 7:19 |
| 14 | 13.9 | 5:26 | 7:17 |
| 15 | 13.8 | 5:27 | 7:16 |
| 16 | 13.8 | 5:28 | 7:14 |
| 17 | 13.7 | 5:29 | 7:13 |
| 18 | 13.7 | 5:30 | 7:11 |
| 19 | 13.6 | 5:31 | 7:09 |
| 20 | 13.6 | 5:32 | 7:08 |
| 21 | 13.5 | 5:34 | 7:06 |
| 22 | 13.5 | 5:35 | 7:05 |
| 23 | 13.5 | 5:36 | 7:03 |
| 24 | 13.4 | 5:37 | 7:01 |
| 25 | 13.4 | 5:38 | 7:00 |
| 26 | 13.3 | 5:39 | 6:58 |
| 27 | 13.3 | 5:40 | 6:56 |
| 28 | 13.2 | 5:41 | 6:54 |
| 29 | 13.2 | 5:43 | 6:53 |
| 30 | 13.1 | 5:44 | 6:51 |
| 31 | 13.1 | 5:45 | 6:49 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.39 kWh/m².
For context, solar energy here swings from a low near 1.27 kWh/m² to a high of 6.37 kWh/m² in June across the year — August's 5.39 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) | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 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 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 |
| 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 | 5.8 | Bright |
| 2 | 5.8 | Bright |
| 3 | 5.8 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.7 | Bright |
| 6 | 5.7 | Bright |
| 7 | 5.7 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.6 | Bright |
| 11 | 5.5 | Bright |
| 12 | 5.5 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.4 | Bright |
| 15 | 5.4 | Bright |
| 16 | 5.4 | Bright |
| 17 | 5.3 | Bright |
| 18 | 5.3 | Bright |
| 19 | 5.3 | Bright |
| 20 | 5.3 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.1 | Bright |
| 26 | 5.0 | Bright |
| 27 | 5.0 | Bright |
| 28 | 5.0 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.8 | Bright |
Is August a good time to visit Port Colborne?
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 Port Colborne for sightseeing.
What to pack for Port Colborne in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Port Colborne sees daytime highs around 24°C and nights near 20°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.
Sea temperature near Port Colborne in August
The nearest coast averages about 23°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 23°C and coldest in February near 1°C.
It's comfortable for a long swim from Jul 4 to Sep 20 — about 2.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 3 | 1 | 1 | 3 | 9 | 17 | 22 | 23 | 21 | 16 | 10 | 6 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 3 | Bracing |
| Feb | 1 | Bracing |
| Mar | 1 | Bracing |
| Apr | 3 | Bracing |
| May | 9 | Bracing |
| Jun | 17 | Cool |
| Jul | 22 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 16 | Cool |
| Nov | 10 | Bracing |
| Dec | 6 | Bracing |
UV index in Port Colborne in August
Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Port Colborne peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 6 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Port Colborne in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Port Colborne is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 10 | 12 | 12 | 14 | 15 | 15 | 13 | 11 | 7 | 7 | 7 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 12 | Good |
| Apr | 12 | Moderate |
| May | 14 | Moderate |
| Jun | 15 | Moderate |
| Jul | 15 | Moderate |
| Aug | 13 | Moderate |
| Sep | 11 | Good |
| Oct | 7 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Port Colborne?
Port Colborne sits at 42.9°N, 79.2°W, 188 m above sea level, in Canada. The nearest listed city is Welland, 9.0 km away.
Topography around Port Colborne
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port Colborne.
Within 3 km, the terrain around Port Colborne has only modest variations in elevation — a maximum elevation change of 39 m around an average of 180 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 100 m; within 80 km, large variations in elevation — a maximum elevation change of 646 m.
The land around Port Colborne is covered by grassland (28%) and trees (25%) within 3 km, water (37%), trees (24%) and cropland (20%) within 16 km, and water (38%) and trees (32%) 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 Port Colborne (42.9001°, -79.2329°, elevation 188 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).