Barrie weather in May

In May, Barrie sees average daytime highs of 18°C and overnight lows near 8°C, with 82 mm of precipitation across 10.5 wet days and about 14.6 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 20°C by the end. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of May to 15 h 06 min by month's end. Set against the rest of the year, May is Barrie's 5th-clearest and 8th-windiest month. For the whole year in context, see Barrie's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Precipitation
82 mm
10.5 wet days
Daylight
14 h 36 min
4:57 AM – 7:32 PM
Cloud cover
61%
5th clearest
Wind
12 km/h
8th windiest
Solar energy
5.84 kWh/m²
Travel score
5.5
out of 10

Barrie is city in Ontario, Canada.

Air quality
Good
PM2.5 7 µg/m³ · 2019
Density
1,920/km²
people per km²
Founded
1812

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 20°C by the end.

A typical May day in Barrie reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 26°C. Set against its neighbours, May runs about 7°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1155
2155
3155
4155
5156
6166
7166
8166
9166
10166
11177
12177
13177
14177
15177
16187
17188
18188
19188
20188
21198
22199
23199
24199
25199
262010
272010
282010
292010
302010
312011

How May really feels in Barrie

Once humidity and wind are folded in, May 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

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

Barrie weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -11°6111.811.990.0
Feb-2° / -11°488.78.710.10.0
Mar / -6°57106.811.60.1
Apr11° / 77113.213.22.4
May18° / 8210.5014.65.5
Jun23° / 13°8710.7015.36.6
Jul25° / 16°8011.40156.7
Aug24° / 15°8411.1013.86.9
Sep20° / 11°8011012.36.2
Oct13° / 8213.20.410.83.3
Nov / -1°7412.359.40.5
Dec-0° / -6°6313.2118.70.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24159
34159
44258
54258
64258
74258
84159
94258
104258
114357
124357
134456
144357
154456
164555
174555
184555
194555
204555
214555
224654
234654
244654
254654
264753
274753
284654
294654
304555
314654

Chance of precipitation in May

Any precipitationSnow

Barrie gets around 82 mm of rain and snow over 10.5 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1362
2352
3351
4351
5351
6351
7350
8350
9340
10340
11340
12340
13340
14330
15330
16330
17330
18320
19320
20320
21320
22320
23320
24320
25320
26330
27330
28340
29340
30350
31350

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
298200
398200
496310
596310
696310
796310
895410
995410
1095410
1195410
1293520
1393520
1493520
1592620
1691630
1790730
1890730
1989740
2086851
2185951
2284961
23831061
24821071
25801172
26781282
27781282
28771382
29771382
30741493
31741493

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 hours at the start of May to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:17 AM to 4:44 AM, and sunset from 7:15 PM to 7:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:177:15
214.05:167:16
314.05:147:17
414.15:137:18
514.15:117:19
614.25:107:21
714.25:097:22
814.35:077:23
914.35:067:24
1014.35:057:25
1114.45:037:27
1214.45:027:28
1314.55:017:29
1414.55:007:30
1514.54:587:31
1614.64:577:32
1714.64:567:34
1814.74:557:35
1914.74:547:36
2014.74:537:37
2114.84:527:38
2214.84:517:39
2314.84:507:40
2414.94:497:41
2514.94:497:42
2614.94:487:43
2715.04:477:44
2815.04:467:45
2915.04:467:46
3015.04:457:47
3115.14:447:48

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.84 kWh/m².

For context, solar energy here swings from a low near 1.22 kWh/m² to a high of 6.29 kWh/m² in June across the year — May's 5.84 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
206.0Bright
216.0Bright
226.0Bright
236.0Intense
246.0Intense
256.0Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Barrie?

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

5.5
Sightseeing
5th-best month of the year
1.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Barrie for sightseeing.

What to pack for Barrie in May

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

In May, Barrie sees daytime highs around 18°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Barrie in May

The nearest coast averages about 5°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 km away) is warmest in August at about 21°C and coldest in March near 1°C.

It's comfortable for a long swim from Aug 9 to Aug 24 — about 0.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan3Bracing
Feb2Bracing
Mar1Bracing
Apr2Bracing
May5Bracing
Jun11Bracing
Jul19Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Barrie in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barrie peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 21UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug6High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Barrie?

Barrie sits at 44.4°N, 79.7°W, 269 m above sea level, in Canada. The nearest listed city is Innisfil, 11 km away.

Topography around Barrie

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

Within 3 km, the terrain around Barrie has only modest variations in elevation — a maximum elevation change of 83 m around an average of 244 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 239 m; within 80 km, significant variations in elevation — a maximum elevation change of 471 m.

The land around Barrie is covered by water (30%), artificial surfaces (29%) and trees (27%) within 3 km, trees (42%) and cropland (26%) within 16 km, and trees (43%) and cropland (22%) within 80 km.

3 km
83 m
16 km
239 m
80 km
471 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Innisfil 11 km · Keswick 23 km · Orillia 30 km · Wasaga Beach 31 km · Alliston 32 km · East Gwillimbury 38 km · Newmarket 42 km · Midland 43 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 Barrie (44.4001°, -79.6663°, elevation 269 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).