Niagara-on-the-Lake weather in July

In July, Niagara-on-the-Lake sees average daytime highs of 24°C and overnight lows near 20°C, with 92 mm of rain across 10.5 wet days and about 14.9 hours of daylight. It is the 1st-warmest and 3rd-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 40% of the time in July, and the air most often feels humid.

Daylight stretches from about 15 h 12 min at the start of July to 14 h 24 min by month's end. Set against the rest of the year, July is Niagara-on-the-Lake's 2nd-clearest and 12th-windiest month. For the whole year in context, see Niagara-on-the-Lake's year-round climate.

Daytime high
24°
1st warmest
Overnight low
20°
12th coldest
Rainfall
92 mm
10.5 wet days
Daylight
14 h 54 min
4:55 AM – 7:49 PM
Cloud cover
51%
2nd clearest
Wind
13 km/h
12th windiest
Solar energy
6.19 kWh/m²
Travel score
7.0
out of 10

Niagara-on-the-Lake is town in Niagara Region, Ontario, Canada.

Density
132/km²
people per km²
Founded
1781

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical July day in Niagara-on-the-Lake 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, July runs about 4°C warmer than June and on par with August.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12318
22319
32319
42419
52419
62419
72419
82419
92419
102419
112420
122420
132420
142420
152420
162520
172520
182520
192520
202520
212520
222520
232520
242520
252520
262520
272520
282520
292520
302520
312520

How July really feels in Niagara-on-the-Lake

Once humidity and wind are folded in, July 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.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Niagara-on-the-Lake weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°7713.211.39.20.0
Feb-0° / -6°609.87.810.20.0
Mar / -2°7310.54.911.60.0
Apr / 9611.61.713.21.6
May14° / 8211.5014.54.2
Jun21° / 16°9210.9015.16.3
Jul24° / 20°9210.5014.97.0
Aug24° / 19°7910.2013.87.1
Sep21° / 16°8910012.36.5
Oct14° / 10°9412.70.110.84.0
Nov / 8412.22.69.51.3
Dec / -1°8113.28.48.90.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36139
46139
56238
66238
76139
86139
96139
106139
116139
126040
136040
145941
155941
165941
175941
185842
195941
205842
215842
225941
235941
245842
255842
265941
275941
285941
296139
306139
316139

Chance of precipitation in July

Any precipitation

Niagara-on-the-Lake gets around 92 mm of rain over 10.5 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
334
433
533
632
732
832
932
1032
1132
1233
1333
1434
1534
1634
1735
1835
1936
2036
2137
2237
2337
2437
2537
2637
2737
2836
2936
3036
3136

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the humid band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 38% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1162729245
2152629255
3152629256
4142629256
5142629257
6132529257
7122530258
8122530258
9112430269
101123302610
111023312610
12922312710
13922322711
14821322811
15820332811
16820332911
17819332911
18818333011
19818333111
20717333111
21717343211
22716343211
23716343211
24716343210
25716343310
26716353310
27716343310
2871634339
2971634339
3071734339
3181733329

Wind in July

Winds average 13 km/h in July, the calmest month.

Across July, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 12 min at the start of July to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over July. Sunrise moves from 4:45 AM to 5:09 AM, and sunset from 7:55 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:457:55
215.24:457:55
315.14:467:54
415.14:467:54
515.14:477:54
615.14:477:54
715.14:487:54
815.14:497:53
915.14:497:53
1015.04:507:52
1115.04:517:52
1215.04:517:51
1315.04:527:51
1415.04:537:50
1514.94:547:50
1614.94:557:49
1714.94:567:49
1814.94:567:48
1914.84:577:47
2014.84:587:46
2114.84:597:46
2214.75:007:45
2314.75:017:44
2414.75:027:43
2514.75:037:42
2614.65:047:41
2714.65:057:40
2814.55:067:39
2914.55:077:38
3014.55:087:37
3114.45:097:36

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.19 kWh/m².

For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 6.35 kWh/m² in June across the year — July's 6.19 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.1Intense
196.1Intense
206.1Intense
216.0Intense
226.0Intense
236.0Intense
246.0Bright
256.0Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.8Bright
Planning a trip in July

Is July a good time to visit Niagara-on-the-Lake?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.0
Sightseeing
2nd-best month of the year
6.0
Beach & pool
2nd-best month of the year

July is one of the better times to visit Niagara-on-the-Lake for general sightseeing.

What to pack for Niagara-on-the-Lake in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Niagara-on-the-Lake sees daytime highs around 24°C and nights near 20°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Niagara-on-the-Lake in July

The nearest coast averages about 20°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in August at about 22°C and coldest in February near 3°C.

It's comfortable for a long swim from Jul 17 to Sep 6 — about 1.7 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May7Bracing
Jun15Bracing
Jul20Refreshing
Aug22Refreshing
Sep19Cool
Oct13Bracing
Nov8Bracing
Dec5Bracing

UV index in Niagara-on-the-Lake in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Niagara-on-the-Lake peaks around June 19 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 19UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul7Very high
Aug6High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Niagara-on-the-Lake in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Niagara-on-the-Lake is worst in May — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 2021 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar17Moderate
Apr18Moderate
May21Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep16Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Niagara-on-the-Lake?

Niagara-on-the-Lake sits at 43.3°N, 79.1°W, 85 m above sea level, in Canada. The nearest listed city is St. Catharines, 16 km away.

Topography around Niagara-on-the-Lake

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Niagara-on-the-Lake.

Within 3 km, the terrain around Niagara-on-the-Lake has only modest variations in elevation — a maximum elevation change of 40 m around an average of 82 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 146 m; within 80 km, significant variations in elevation — a maximum elevation change of 540 m.

The land around Niagara-on-the-Lake is covered by water (47%) within 3 km, water (52%) within 16 km, and water (42%) and trees (24%) within 80 km.

3 km
40 m
16 km
146 m
80 km
540 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: St. Catharines 16 km · Niagara Falls 17 km · Thorold 18 km · Niagara Falls 18 km · Grand Island 27 km · North Tonawanda 30 km · Welland 33 km · Lockport 33 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
Christian 53%none 35%Muslim 5%Hindu 2%

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 Niagara-on-the-Lake (43.2565°, -79.0853°, elevation 85 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).