What kind of destination is London (Ontario)?

London (Ontario) is a city break in Canada with a hot-summer continental climate.

How many hours of sunshine does London (Ontario) get a year?

London (Ontario) gets about 1,973 hours of sunshine a year, at its best around August.

What is the least sunny month in London (Ontario)?

January is the least sunny month in London (Ontario), scoring 0/100 with about 40 mm of rain.

How strong is the sun in London (Ontario)?

The typical midday UV index in London (Ontario) peaks around 7 (high) in June, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.

London (Ontario) weather by month & the best time to visit

Name: London (Ontario)
Address: CA

🇨🇦 Canada · city break · hot-summer continental climate

The best time to visit London (Ontario) is August — its sunniest month (Sunshine Score 80/100), with June and September close behind. London (Ontario) averages about 1,973 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 55 mm of rain in August.

Jump to: month-by-month table · nearby alternatives · embed this data

Sun hours / year: 1,973
Sunniest month: August
Peak score: 80/100
Rain / year: 661 mm
Snow / year: ≈1.8 m
Midday UV at peak: 7 (high)
Population: 422k
Elevation: 274 m

When is the best time to visit London (Ontario)?

For sunshine, the best time to visit London (Ontario) is August, then June and September. The dullest month is January (0/100, 40 mm of rain). The full month-by-month picture is in the table below.

How sunny is London (Ontario)?

London (Ontario) gets a moderate 1,973 hours of sunshine a year. 80 Sunshine Score points separate August (80) from January (0), so the month you pick matters. It ranks #143 of 242 destinations in Canada for annual sunshine, below the national median of 2,024 hours. The year's 661 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	-2° / 28°F	-8° / 18°F	40 mm	1
February	0	-1° / 30°F	-9° / 16°F	38 mm	2
March	0	5° / 41°F	-4° / 25°F	43 mm	3
April	27	12° / 54°F	1° / 34°F	56 mm	4
May	72	19° / 66°F	7° / 45°F	66 mm	6
June	78	25° / 77°F	13° / 55°F	68 mm	7
July	77	28° / 82°F	17° / 63°F	70 mm	7
August	80	27° / 81°F	16° / 61°F	55 mm	6
September	78	23° / 73°F	12° / 54°F	69 mm	5
October	46	15° / 59°F	6° / 43°F	62 mm	3
November	0	8° / 46°F	0° / 32°F	50 mm	1
December	0	1° / 34°F	-4° / 25°F	44 mm	1

See London (Ontario) on the interactive sunshine globe →

Nearby places for sunshine

Waterloo (Ontario) Canada · 78 km · best in Aug · 2,026 h sun/yr
Toronto Canada · 142 km · best in Aug · 1,957 h sun/yr
Cleveland United States · 189 km · best in Aug · 1,820 h sun/yr
Buffalo United States · 197 km · best in Aug · 1,831 h sun/yr
Detroit United States · 202 km · best in Sep · 2,073 h sun/yr
Flint United States · 211 km · best in Sep · 2,076 h sun/yr

Nearest destinations

Erie United States · 132 km · 1,972 h sun/yr · best in Aug
Niagara-on-the-Lake Canada · 161 km · 1,955 h sun/yr · best in Aug
Windsor Canada · 170 km · 2,036 h sun/yr · best in Sep
Niagara Falls United States · 179 km · 1,886 h sun/yr · best in Aug

Put the London (Ontario) sunshine badge on your site

A compact badge showing London (Ontario)'s sunshine at a glance — free to embed under CC BY 4.0. Paste this wherever you'd like it to appear:

<iframe src="https://thesunshinemap.com/embed/d/london-yxu/" title="Sunshine in London (Ontario) — Sunshine Map" style="width:100%;max-width:340px;height:208px;border:0" loading="lazy"></iframe>
<p>Sunshine data for London (Ontario) from <a href="https://thesunshinemap.com/destinations/london-yxu/">Sunshine Map</a></p>

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