St. John's weather in July

In July, St. John's sees average daytime highs of 18°C and overnight lows near 12°C, with 78 mm of rain across 10.5 wet days and about 15.4 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 19% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 42 min at the start of July to 14 h 54 min by month's end. Set against the rest of the year, July is St. John's's 3rd-clearest and 12th-windiest month. For the whole year in context, see St. John's's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
12°
11th coldest
Rainfall
78 mm
10.5 wet days
Daylight
15 h 24 min
4:24 AM – 7:49 PM
Cloud cover
70%
3rd clearest
Wind
16 km/h
12th windiest
Solar energy
5.18 kWh/m²
Travel score
5.6
out of 10

St. John's is capital and largest city of the province of Newfoundland and Labrador, Canada.

Air quality
Excellent
PM2.5 5 µg/m³ · 2019
Founded
1888

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 19°C by the end.

A typical July day in St. John's reaches about 18°C in the afternoon and slips back to 12°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, July runs about 5°C warmer than June and about 1°C cooler than August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11610
21610
31710
41710
51710
61710
71711
81711
91811
101811
111811
121811
131811
141812
151812
161912
171912
181912
191912
201912
211912
221912
231913
241913
251913
261913
271913
281913
291913
301913
311913

How July really feels in St. John's

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.

St. John's weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-0° / -6°12514.411.68.70.0
Feb-1° / -7°10312.8109.90.0
Mar / -5°10512.98.711.60.0
Apr / -1°8712.25.413.30.1
May / 7211.21.214.91.6
Jun13° / 6610.6015.73.5
Jul18° / 12°7810.5015.45.6
Aug19° / 13°8010.4014.15.9
Sep16° / 10°9310.7012.44.7
Oct11° / 10512.50.310.62.4
Nov / 11013.639.10.6
Dec / -3°12715.38.88.30.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33367
43367
53268
63268
73367
83367
93367
103367
113268
123268
133268
143268
153268
163268
173268
183268
193367
203268
213367
223268
233268
243268
253268
263367
273367
283367
293367
303367
313367

Chance of precipitation in July

Any precipitation

St. John's gets around 78 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 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
435
535
634
734
834
934
1034
1134
1234
1334
1434
1534
1634
1735
1835
1935
2035
2135
2234
2334
2434
2534
2633
2733
2832
2932
3032
3132

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 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1752050
2732160
3722260
4712360
5712360
6692470
7682570
8672670
9662680
10652780
11642790
126128101
136028111
145929111
155829121
165630131
175630131
185431141
195231152
205132152
215032162
224833162
234734173
244634173
254534173
264535183
274435183
284335183
294336183
304236193
314137193

Wind in July

Winds average 16 km/h in July, the calmest month.

Across July, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 42 min at the start of July to 14 h 54 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 4:12 AM to 4:41 AM, and sunset from 7:56 PM to 7:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.74:127:56
215.74:137:56
315.74:147:56
415.74:147:55
515.74:157:55
615.74:167:55
715.64:167:54
815.64:177:54
915.64:187:53
1015.64:197:53
1115.54:197:52
1215.54:207:52
1315.54:217:51
1415.54:227:50
1515.44:237:50
1615.44:247:49
1715.44:257:48
1815.44:267:47
1915.34:277:46
2015.34:287:45
2115.34:297:44
2215.24:307:43
2315.24:327:42
2415.14:337:41
2515.14:347:40
2615.14:357:39
2715.04:367:38
2815.04:377:37
2914.94:397:35
3014.94:407:34
3114.94:417:33

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.18 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 0.93 kWh/m² to a high of 5.18 kWh/m² in July across the year — July's 5.18 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in July

Is July a good time to visit St. John's?

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

5.6
Sightseeing
2nd-best month of the year
2.0
Beach & pool
2nd-best month of the year

July is a reasonable time to visit St. John's for sightseeing.

What to pack for St. John's in July

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

In July, St. John's sees daytime highs around 18°C and nights near 12°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near St. John's in July

The nearest coast averages about 11°C in July — 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 14°C and coldest in March near -0°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan1Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May3Bracing
Jun6Bracing
Jul11Bracing
Aug14Bracing
Sep12Bracing
Oct9Bracing
Nov6Bracing
Dec3Bracing

UV index in St. John's 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 St. John's peaks around June 14 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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 14UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7Very high
Jun8Very high
Jul7High
Aug6High
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is St. John's?

St. John's sits at 47.6°N, 52.7°W, 35 m above sea level, in Canada. The nearest listed city is Mount Pearl, 8.0 km away.

Corner BrookGlace BaySydneyNew Glasgow

Topography around St. John's

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of St. John's.

Within 3 km, the terrain around St. John's has only modest variations in elevation — a maximum elevation change of 232 m around an average of 67 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 261 m; within 80 km, significant variations in elevation — a maximum elevation change of 327 m.

The land around St. John's is covered by trees (42%) and artificial surfaces (27%) within 3 km, water (46%) and trees (37%) within 16 km, and water (59%) and trees (26%) within 80 km.

3 km
232 m
16 km
261 m
80 km
327 m
treesgrasslandartificial surfacesbare terrainwater
July weather nearby: Mount Pearl 8.0 km · Paradise 14 km · Conception Bay South 23 km · Saint-Pierre 276 km · Corner Brook 417 km · Glace Bay 571 km · Sydney 590 km · New Glasgow 790 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 St. John's (47.5649°, -52.7093°, elevation 35 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).