Waterloo (Ontario) weather by month & the best time to visit
🇨🇦 Canada · regional city · hot-summer continental climate
The best time to visit Waterloo (Ontario) is August — its sunniest month (Sunshine Score 79/100), with September and June close behind. Waterloo (Ontario) averages about 2,026 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 63 mm of rain in August.
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- Sun hours / year
- 2,026
- Sunniest month
- August
- Peak score
- 79/100
- Rain / year
- 763 mm
- Snow / year
- ≈2.1 m
- Midday UV at peak
- 7 (high)
- Population
- 105k
- Elevation
- 313 m
When is the best time to visit Waterloo (Ontario)?
For sunshine, the best time to visit Waterloo (Ontario) is August, then September and June. The dullest month is January (0/100, 50 mm of rain). The full month-by-month picture is in the table below.
How sunny is Waterloo (Ontario)?
Waterloo (Ontario) gets a moderate 2,026 hours of sunshine a year. 79 Sunshine Score points separate August (79) from January (0), so the month you pick matters. It ranks #121 of 242 destinations in Canada for annual sunshine, above the national median of 2,024 hours. The year's 763 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -3° / 27°F | -10° / 14°F | 50 mm | 1 |
| February | 0 | -2° / 28°F | -10° / 14°F | 47 mm | 2 |
| March | 0 | 4° / 39°F | -6° / 21°F | 51 mm | 3 |
| April | 19 | 11° / 52°F | 0° / 32°F | 69 mm | 4 |
| May | 71 | 19° / 66°F | 6° / 43°F | 73 mm | 6 |
| June | 77 | 24° / 75°F | 12° / 54°F | 73 mm | 7 |
| July | 76 | 28° / 82°F | 16° / 61°F | 77 mm | 7 |
| August | 79 | 27° / 81°F | 15° / 59°F | 63 mm | 6 |
| September | 78 | 23° / 73°F | 11° / 52°F | 70 mm | 5 |
| October | 38 | 14° / 57°F | 5° / 41°F | 74 mm | 3 |
| November | 0 | 7° / 45°F | -1° / 30°F | 62 mm | 1 |
| December | 0 | 0° / 32°F | -6° / 21°F | 54 mm | 1 |
See Waterloo (Ontario) on the interactive sunshine globe →
Nearby places for sunshine
- Toronto Canada · 65 km · best in Aug · 1,957 h sun/yr
- Buffalo United States · 145 km · best in Aug · 1,831 h sun/yr
- Rochester United States · 222 km · best in May · 1,838 h sun/yr
- Cleveland United States · 258 km · best in Aug · 1,820 h sun/yr
- Flint United States · 278 km · best in Sep · 2,076 h sun/yr
- Detroit United States · 279 km · best in Sep · 2,073 h sun/yr
Nearest destinations
- London (Ontario) Canada · 78 km · 1,973 h sun/yr · best in Aug
- Niagara-on-the-Lake Canada · 102 km · 1,955 h sun/yr · best in Aug
- Niagara Falls United States · 122 km · 1,886 h sun/yr · best in Aug
- Barrie Canada · 132 km · 1,980 h sun/yr · best in Jul
Head-to-head
How Waterloo (Ontario) compares month by month: Waterloo (Ontario) vs Toronto · Waterloo (Ontario) vs Buffalo · Waterloo (Ontario) vs Rochester · all comparisons
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