Fredericton weather in May

In May, Fredericton sees average daytime highs of 17°C and overnight lows near 5°C, with 101 mm of precipitation across 12.3 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 19°C by the end. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 12 min by month's end. Set against the rest of the year, May is Fredericton's 11th-clearest and 8th-windiest month. For the whole year in context, see Fredericton's year-round climate.

Daytime high
17°
5th warmest
Overnight low
8th coldest
Precipitation
101 mm
12.3 wet days
Daylight
14 h 42 min
5:01 AM – 7:45 PM
Cloud cover
70%
11th clearest
Wind
12 km/h
8th windiest
Solar energy
5.11 kWh/m²
Travel score
4.9
out of 10

Fredericton is capital city of the province of New Brunswick, Canada.

Air quality
Excellent
PM2.5 5 µg/m³ · 2019
Founded
1785

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 19°C by the end.

A typical May day in Fredericton reaches about 17°C in the afternoon and slips back to 5°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 24°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)
1143
2143
3153
4153
5154
6154
7154
8164
9164
10164
11164
12165
13165
14165
15175
16175
17175
18176
19176
20186
21186
22186
23186
24187
25187
26197
27197
28197
29198
30198
31198

How May really feels in Fredericton

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 3 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
3
wind chill below the day's low

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

Fredericton weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -14°9210.48.68.90.0
Feb-3° / -13°819.18.2100.0
Mar / -7°9911.18.211.60.0
Apr10° / -0°8812.24.213.32.1
May17° / 10112.30.314.74.9
Jun22° / 11°10012.1015.56.1
Jul25° / 14°9811.7015.26.4
Aug24° / 13°8710.40146.8
Sep20° / 959.4012.36.2
Oct13° / 11411.20.710.73.3
Nov / -2°1031149.30.5
Dec-1° / -9°11311.888.50.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33367
43367
53367
63466
73466
83466
93367
103367
113367
123268
133268
143367
153367
163367
173268
183268
193268
203169
213169
223169
233070
243070
252971
262971
272971
282872
292872
302872
312872

Chance of precipitation in May

Any precipitationSnow

Fredericton gets around 101 mm of rain and snow over 12.3 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 40% and peaks near 40% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1394
2394
3394
4394
5393
6393
7393
8393
9402
10402
11402
12402
13402
14402
15401
16401
17401
18401
19401
20401
21400
22400
23400
24400
25400
26400
27400
28400
29400
30400
31400

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29820
39820
49820
59820
69820
79820
89820
99820
109820
119820
129820
139820
149820
159730
169730
179730
189730
199730
209631
219541
229541
239541
249451
259451
269262
279262
289172
299172
309082
318992

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 12 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 5:22 AM to 4:47 AM, and sunset from 7:26 PM to 8:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:227:26
214.15:207:27
314.25:197:29
414.25:177:30
514.35:167:31
614.35:147:32
714.35:137:34
814.45:117:35
914.45:107:36
1014.55:097:38
1114.55:077:39
1214.65:067:40
1314.65:057:41
1414.75:037:43
1514.75:027:44
1614.75:017:45
1714.85:007:46
1814.84:597:47
1914.94:577:48
2014.94:567:50
2114.94:557:51
2215.04:547:52
2315.04:537:53
2415.04:527:54
2515.14:527:55
2615.14:517:56
2715.14:507:57
2815.24:497:58
2915.24:487:59
3015.24:488:00
3115.24:478:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.11 kWh/m².

For context, solar energy here swings from a low near 1.25 kWh/m² to a high of 5.5 kWh/m² in June across the year — May's 5.11 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Is May a good time to visit Fredericton?

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

4.9
Sightseeing
5th-best month of the year
1.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Fredericton for sightseeing.

What to pack for Fredericton in May

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

In May, Fredericton sees daytime highs around 17°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

UV index in Fredericton 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 Fredericton peaks around July 13 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun6High
Jul7High
Aug5High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Fredericton?

Fredericton sits at 45.9°N, 66.7°W, 110 m above sea level, in Canada. The nearest listed city is Fredericton Northside, 4.0 km away.

Topography around Fredericton

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

Within 3 km, the terrain around Fredericton has only modest variations in elevation — a maximum elevation change of 139 m around an average of 73 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 218 m; within 80 km, significant variations in elevation — a maximum elevation change of 568 m.

The land around Fredericton is covered by trees (53%) and artificial surfaces (22%) within 3 km, trees (81%) within 16 km, and trees (87%) within 80 km.

3 km
139 m
16 km
218 m
80 km
568 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Fredericton Northside 4.0 km · Quispamsis 80 km · Saint John 89 km · Saint John West 89 km · Lutes Mountain 138 km · Riverview 143 km · Moncton 145 km · Miramichi 150 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 Fredericton (45.9454°, -66.6656°, elevation 110 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. 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).