Cobourg weather in May

In May, Cobourg sees average daytime highs of 15°C and overnight lows near 8°C, with 70 mm of rain across 10.6 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 18°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Cobourg's 5th-clearest and 9th-windiest month. For the whole year in context, see Cobourg's year-round climate.

Daytime high
15°
5th warmest
Overnight low
8th coldest
Rainfall
70 mm
10.6 wet days
Daylight
14 h 30 min
4:53 AM – 7:25 PM
Cloud cover
62%
5th clearest
Wind
12 km/h
9th windiest
Solar energy
6.05 kWh/m²
Travel score
4.7
out of 10

Cobourg is town in Ontario, Canada.

Density
809/km²
people per km²
Founded
1798

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 13°C in the first days to 18°C by the end.

A typical May day in Cobourg reaches about 15°C in the afternoon and slips back to 8°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 20°C. Set against its neighbours, May runs about 6°C warmer than April and about 6°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1136
2136
3136
4136
5136
6146
7147
8147
9147
10147
11147
12157
13158
14158
15158
16158
17168
18168
19169
20169
21169
22179
231710
241710
251710
261710
271810
281811
291811
301811
311811

How May really feels in Cobourg

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.

Cobourg weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -9°6710.98.59.10.0
Feb-2° / -9°528.26.610.20.0
Mar / -4°6110.35.411.60.0
Apr / 8410.6213.21.9
May15° / 7010.6014.54.7
Jun22° / 14°7810.4015.26.5
Jul25° / 18°7610.2014.96.9
Aug24° / 17°7510013.87.0
Sep20° / 13°809.2012.36.5
Oct14° / 8411.70.110.83.7
Nov / 7510.32.49.41.0
Dec / -4°7111.16.28.80.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34258
44258
54357
64357
74357
84258
94357
104357
114258
124357
134258
144258
154258
164357
174258
184357
194357
204357
214357
224357
234357
244456
254357
264357
274456
284357
294357
304357
314357

Chance of precipitation in May

Any precipitation

Cobourg gets around 70 mm of rain over 10.6 wet days in May. 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 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
334
435
535
635
735
835
935
1034
1134
1234
1334
1434
1534
1633
1733
1833
1933
2033
2133
2233
2333
2433
2533
2634
2734
2835
2935
3035
3135

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
199100
299100
399100
498200
598200
698200
798200
897300
997300
1097300
1197300
1296400
1396400
1496400
1595500
1694510
1793610
1893610
1992710
2090820
2190820
2288930
23871030
24851140
25841240
26831340
27811450
28801550
29801550
30771661
31761761

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
613light breeze
713light 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
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:12 AM to 4:40 AM, and sunset from 7:08 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:127:08
214.05:117:09
314.05:097:10
414.15:087:11
514.15:067:12
614.15:057:14
714.25:047:15
814.25:027:16
914.35:017:17
1014.35:007:18
1114.44:587:20
1214.44:577:21
1314.44:567:22
1414.54:557:23
1514.54:547:24
1614.54:537:25
1714.64:527:26
1814.64:507:27
1914.74:497:29
2014.74:487:30
2114.74:487:31
2214.84:477:32
2314.84:467:33
2414.84:457:34
2514.84:447:35
2614.94:437:36
2714.94:427:37
2814.94:427:38
2915.04:417:39
3015.04:407:39
3115.04:407:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.05 kWh/m².

For context, solar energy here swings from a low near 1.32 kWh/m² to a high of 6.46 kWh/m² in June across the year — May's 6.05 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
126.0Bright
136.0Bright
146.0Intense
156.0Intense
166.0Intense
176.1Intense
186.1Intense
196.1Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Is May a good time to visit Cobourg?

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

4.7
Sightseeing
5th-best month of the year
0.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Cobourg for sightseeing.

What to pack for Cobourg in May

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

In May, Cobourg sees daytime highs around 15°C and nights near 8°C. Pack sun protection. Worth having: a warm layer and rain gear. About 11 days see rain.

sun protectiona warm layerrain gear

Sea temperature near Cobourg in May

The nearest coast averages about 6°C in May — 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 21°C and coldest in March near 2°C.

It's comfortable for a long swim from Jul 23 to Sep 6 — about 1.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar2Bracing
Apr3Bracing
May6Bracing
Jun14Bracing
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct14Bracing
Nov8Bracing
Dec5Bracing

UV index in Cobourg 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 Cobourg peaks around June 22 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Cobourg?

Cobourg sits at 44.0°N, 78.2°W, 82 m above sea level, in Canada. The nearest listed city is Peterborough, 40 km away.

Topography around Cobourg

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

Within 3 km, the terrain around Cobourg has only modest variations in elevation — a maximum elevation change of 65 m around an average of 86 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 282 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.

The land around Cobourg is covered by water (42%), trees (21%) and artificial surfaces (21%) within 3 km, water (48%) and trees (23%) within 16 km, and water (46%) and trees (29%) within 80 km.

3 km
65 m
16 km
282 m
80 km
394 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Peterborough 40 km · Bowmanville 42 km · Quinte West 54 km · Oshawa 55 km · Whitby 62 km · Lindsay 63 km · Brooklin 64 km · Belleville 67 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 Cobourg (43.9598°, -78.1651°, elevation 82 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).