Guelph weather in March

In March, Guelph sees average daytime highs of 4°C and overnight lows near -5°C, with 62 mm of precipitation across 9.7 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 1°C in the first days to 8°C by the end. The sky is clear or mostly clear about 21% of the time in March, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Guelph's 8th-clearest and 4th-windiest month. For the whole year in context, see Guelph's year-round climate.

Daytime high
9th warmest
Overnight low
-5°
4th coldest
Precipitation
62 mm
9.7 wet days
Daylight
11 h 36 min
6:42 AM – 6:20 PM
Cloud cover
68%
8th clearest
Wind
14 km/h
4th windiest
Solar energy
3.93 kWh/m²
Travel score
0.3
out of 10

Guelph is city in Ontario, Canada.

Air quality
Good
PM2.5 7 µg/m³ · 2019
Density
498/km²
people per km²
Founded
1827

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 1°C in the first days to 8°C by the end.

A typical March day in Guelph reaches about 4°C in the afternoon and slips back to -5°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between -3°C and 13°C. Set against its neighbours, March runs about 5°C warmer than February and about 7°C cooler than April.

-20°-10°10°20°151015202531
Avg high (°C)Avg low (°C)
11-8
21-8
31-8
42-7
52-7
62-7
72-7
83-7
93-7
103-6
113-6
123-6
134-6
144-5
154-5
164-5
175-5
185-4
195-4
205-4
216-4
226-3
236-3
246-3
257-2
267-2
277-2
287-2
298-2
308-1
318-1

How March really feels in Guelph

Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 31 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
31
16 feel bitter (≤ -10°C)

The story in March is cold — wind chill drags the overnight "feels like" below the raw low.

Guelph weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -10°6610.89.49.10.0
Feb-1° / -10°538.37.310.20.0
Mar / -5°629.75.611.60.3
Apr12° / 8711.72.513.22.9
May18° / 8811.6014.55.5
Jun23° / 13°9311.6015.26.5
Jul26° / 15°8510.9014.96.7
Aug25° / 15°769.9013.86.9
Sep21° / 10°779.6012.36.5
Oct13° / 78110.410.83.7
Nov / -1°7310.63.69.50.7
Dec / -6°6310.67.98.80.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33268
43367
53466
63466
73466
83565
93565
103565
113565
123565
133565
143565
153565
163565
173565
183565
193565
203664
213664
223664
233664
243664
253565
263466
273466
283367
293367
303466
313466

Chance of precipitation in March

Any precipitationSnow

Guelph gets around 62 mm of rain and snow over 9.7 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 35% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13426
23426
33425
43425
53425
63424
73323
83323
93222
103221
113121
123120
133120
143019
153018
163018
172917
182917
192916
202915
212915
222914
233014
243014
253114
263114
273214
283314
293314
303414
313514

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in March

Winds average 14 km/h in March.

Across March, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 10 h 54 min at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over March. Sunrise moves from 7:08 AM to 6:14 AM, and sunset from 6:01 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:086:01
210.97:066:02
311.07:056:03
411.07:036:04
511.17:016:06
611.17:006:07
711.26:586:08
811.26:566:10
911.36:546:11
1011.36:536:12
1111.46:516:13
1211.46:496:15
1311.56:476:16
1411.56:456:17
1511.66:446:18
1611.66:426:20
1711.76:406:21
1811.76:386:22
1911.86:366:23
2011.86:346:25
2111.96:336:26
2211.96:316:27
2312.06:296:28
2412.06:276:29
2512.16:256:31
2612.16:236:32
2712.26:226:33
2812.26:206:34
2912.36:186:35
3012.36:166:37
3112.46:146:38

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 3.93 kWh/m².

For context, solar energy here swings from a low near 1.31 kWh/m² to a high of 6.22 kWh/m² in June across the year — March's 3.93 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.4Moderate
43.4Moderate
53.5Moderate
63.5Moderate
73.6Moderate
83.6Moderate
93.7Moderate
103.7Moderate
113.8Moderate
123.8Moderate
133.9Moderate
143.9Moderate
153.9Moderate
164.0Moderate
174.0Bright
184.0Bright
194.1Bright
204.1Bright
214.1Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.4Bright
314.4Bright
Planning a trip in March

Is March a good time to visit Guelph?

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

0.3
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

March is a weaker month for outdoor sightseeing in Guelph.

What to pack for Guelph in March

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

In March, Guelph sees daytime highs around 4°C and nights near -5°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Guelph in March

The nearest coast averages about 3°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 54 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 22 to Sep 1 — about 1.4 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr4Bracing
May8Bracing
Jun15Cool
Jul20Cool
Aug21Refreshing
Sep19Cool
Oct13Bracing
Nov8Bracing
Dec5Bracing

UV index in Guelph in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guelph peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 9Jan 11UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun9Very high
Jul8Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Guelph?

Guelph sits at 43.5°N, 80.3°W, 335 m above sea level, in Canada. The nearest listed city is Hespeler, 13 km away.

Topography around Guelph

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

Within 3 km, the terrain around Guelph has only modest variations in elevation — a maximum elevation change of 73 m around an average of 331 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 143 m; within 80 km, significant variations in elevation — a maximum elevation change of 469 m.

The land around Guelph is covered by trees (42%) and artificial surfaces (42%) within 3 km, trees (38%) and cropland (38%) within 16 km, and cropland (49%) and trees (26%) within 80 km.

3 km
73 m
16 km
143 m
80 km
469 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Hespeler 13 km · Fiddlesticks 17 km · Fergus 20 km · Cambridge 21 km · Christopher-Champlain 22 km · Waterloo 23 km · Kitchener 25 km · Forest Heights 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 Guelph (43.5459°, -80.256°, elevation 335 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).