Newmarket weather in July

In July, Newmarket sees average daytime highs of 26°C and overnight lows near 15°C, with 84 mm of rain across 10.8 wet days and about 15 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 30% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of July to 14 h 30 min by month's end. Set against the rest of the year, July is Newmarket's 1st-clearest and 11th-windiest month. For the whole year in context, see Newmarket's year-round climate.

Daytime high
26°
1st warmest
Overnight low
15°
12th coldest
Rainfall
84 mm
10.8 wet days
Daylight
15 hours
4:54 AM – 7:53 PM
Cloud cover
56%
1st clearest
Wind
10 km/h
11th windiest
Solar energy
6.21 kWh/m²
Travel score
6.6
out of 10

Newmarket is town in York Region, Ontario, Canada.

Air quality
Good
PM2.5 6 µg/m³ · 2019
Density
2,368/km²
people per km²
Founded
1801

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 26°C through the month.

A typical July day in Newmarket reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, July runs about 2°C warmer than June and about 1°C warmer than August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52615
62615
72615
82615
92615
102615
112615
122615
132615
142615
152615
162615
172615
182616
192616
202616
212616
222616
232616
242616
252616
262615
272615
282615
292615
302615
312615

How July really feels in Newmarket

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.

Newmarket weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -11°5710.18.89.10.0
Feb-1° / -11°467.96.810.20.0
Mar / -5°5610.15.811.60.3
Apr12° / 7711.42.313.23.0
May19° / 8011.2014.55.8
Jun24° / 13°8811.2015.26.6
Jul26° / 15°8410.80156.6
Aug25° / 14°789.6013.86.9
Sep21° / 10°739.2012.36.6
Oct14° / 75110.410.83.8
Nov / -1°6810.23.49.40.7
Dec / -7°579.97.38.80.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45545
55545
65545
75644
85644
95644
105644
115545
125545
135545
145545
155545
165446
175347
185347
195347
205248
215248
225149
235149
245248
255248
265248
275149
285149
295248
305248
315248

Chance of precipitation in July

Any precipitation

Newmarket gets around 84 mm of rain over 10.8 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
633
733
833
933
1034
1134
1234
1335
1435
1535
1636
1736
1836
1937
2037
2137
2237
2337
2437
2537
2637
2737
2836
2936
3036
3136

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1412523111
2402522121
3402522121
4402522121
5392622131
6392622131
7382622131
8372622141
9362623141
10342623142
11332724142
12322725142
13312726142
14302727142
15292727142
16282728142
17272729143
18272729143
19262830143
20252830143
21252830143
22242930143
23243030143
24243030143
25233130142
26233129142
27243229142
28243229142
29243228142
30243228142
31253227151

Wind in July

Winds average 10 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 18 min at the start of July to 14 h 30 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 4:43 AM to 5:09 AM, and sunset from 7:59 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.34:437:59
215.34:447:59
315.24:447:59
415.24:457:59
515.24:457:58
615.24:467:58
715.24:477:58
815.24:477:57
915.14:487:57
1015.14:497:57
1115.14:507:56
1215.14:507:56
1315.14:517:55
1415.04:527:55
1515.04:537:54
1615.04:547:53
1715.04:557:53
1814.94:557:52
1914.94:567:51
2014.94:577:50
2114.94:587:50
2214.84:597:49
2314.85:007:48
2414.85:017:47
2514.75:027:46
2614.75:037:45
2714.75:047:44
2814.65:057:43
2914.65:067:42
3014.65:077:41
3114.55:097:39

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.21 kWh/m².

For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.32 kWh/m² in June across the year — July's 6.21 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
146.3Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Bright
266.0Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.8Bright
Planning a trip in July

Is July a good time to visit Newmarket?

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

6.6
Sightseeing
2nd-best month of the year
6.3
Beach & pool
1st-best month of the year

July is a reasonable time to visit Newmarket for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Newmarket in July

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

In July, Newmarket sees daytime highs around 26°C and nights near 15°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Newmarket 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 48 km away) is warmest in August at about 21°C and coldest in February near 3°C.

It's comfortable for a long swim from Jul 20 to Sep 2 — about 1.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May7Bracing
Jun15Bracing
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov8Bracing
Dec5Bracing

UV index in Newmarket in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Newmarket peaks around June 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug6High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Newmarket?

Newmarket sits at 44.1°N, 79.5°W, 250 m above sea level, in Canada. The nearest listed city is Aurora, 6.0 km away.

Topography around Newmarket

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Newmarket.

Within 3 km, the terrain around Newmarket has only modest variations in elevation — a maximum elevation change of 95 m around an average of 263 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 170 m; within 80 km, significant variations in elevation — a maximum elevation change of 532 m.

The land around Newmarket is covered by artificial surfaces (44%) and trees (37%) within 3 km, trees (40%), cropland (28%) and grassland (21%) within 16 km, and trees (33%), cropland (25%) and water (22%) within 80 km.

3 km
95 m
16 km
170 m
80 km
532 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Aurora 6.0 km · East Gwillimbury 6.0 km · Whitchurch-Stouffville 13 km · Stouffville 20 km · Richmond Hill 20 km · Keswick 22 km · Vaughan 24 km · Markham 26 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 Newmarket (44.0501°, -79.4663°, elevation 250 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).