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Canada weather

Weather in New Brunswick for May 2026

Your guide to New Brunswick weather in May - trends and predictions

    Temperatures

  • So far, May 2026 in New Brunswick is slightly warmer than the historical average by 1.6 °C.

  • The forecast for the upcoming days in New Brunswick predicts a temperature of 15.1 °C, which is slightly above the historical average.

  • In general, the average temperature in New Brunswick at the beginning of May is 12.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.1 °C by the end of May.

    • Rain 🌧️

  • New Brunswick experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 113.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
10
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/5°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
74 %
Avg humidity

New Brunswick Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate or heavy rain shower
10°
2
Patchy rain possible
10°
3
Moderate rain at times
9°
4
Patchy rain possible
12°
5
Sunny
15°
6
Partly cloudy
14°
7
Heavy rain at times
17°
8
Patchy rain possible
13°
9
Moderate or heavy rain shower
9°
10
Cloudy
10°
11
Patchy rain possible
17°
12
Patchy rain possible
11°
13
Partly cloudy
15°
14
Patchy rain possible
17°
15
Moderate rain
15°
16
Patchy rain possible
9°
17
Sunny
16°
18
Patchy rain possible
16°
19
Patchy rain possible
16°
20
Patchy rain possible
15°
21
Partly cloudy
17°
22
Patchy rain possible
16°
23
Cloudy
16°
24
Patchy rain possible
15°
25
Moderate rain at times
12°
26
Patchy rain possible
10°
27
Partly cloudy
20°
28
Cloudy
24°
29
Sunny
20°
30
Partly cloudy
22°
31
Overcast
19°

What’s the Weather Like in New Brunswick This May?

Discover the average temperatures and weather trends across New Brunswick’s cities this May.
CloudyMoncton14 °C / 5 °CCloudyFredericton16 °C / 6 °CCloudySaint John13 °C / 5 °CCloudyDieppe14 °C / 6 °CMore Locations

Temperatures trend during May in New Brunswick

See the weather trend as well as the moving average line

May weather in New Brunswick day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /3° 14.6 mm 2
2 May Patchy rain possible
Patchy rain possible
 10° /3° 0.3 mm 3
3 May Moderate rain at times
Moderate rain at times
 9° /2° 7.8 mm 2
4 May Patchy rain possible
Patchy rain possible
 12° /3° 9.4 mm 3
5 May Sunny
Sunny
 15° /3° 0 mm 5
6 May Partly cloudy
Partly cloudy
 14° /6° 0.9 mm 3
7 May Heavy rain at times
Heavy rain at times
 17° /6° 3.5 mm 4
8 May Patchy rain possible
Patchy rain possible
 13° /3° 1 mm 4
9 May Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /1° 2.4 mm 4
10 May Cloudy
Cloudy
 10° /2° 10.1 mm 2
11 May Patchy rain possible
Patchy rain possible
 17° /6° 0.2 mm 3.6
12 May Patchy rain possible
Patchy rain possible
 11° /4° 2.4 mm 5.7
13 May Partly cloudy
Partly cloudy
 15° /1° 0 mm 6.3
14 May Patchy rain possible
Patchy rain possible
 17° /7° 1.8 mm 4.7
15 May Moderate rain
Moderate rain
 15° /10° 16.1 mm 0.3
16 May Patchy rain possible
Patchy rain possible
 9° /7° 1.2 mm 2
17 May Sunny
Sunny
 16° /4° 0 mm 3
18 May Patchy rain possible
Patchy rain possible
 16° /7° 2.7 mm 3
19 May Patchy rain possible
Patchy rain possible
 16° /9° 0.1 mm 3
20 May Patchy rain possible
Patchy rain possible
 15° /6° 0.7 mm 3
21 May Partly cloudy
Partly cloudy
 17° /8° 0 mm 4
22 May Patchy rain possible
Patchy rain possible
 16° /7° 3.7 mm 3
23 May Cloudy
Cloudy
 16° /10° 0.1 mm 3
24 May Patchy rain possible
Patchy rain possible
 15° /5° 2.3 mm 2
25 May Moderate rain at times
Moderate rain at times
 12° /5° 6.5 mm 3
26 May Patchy rain possible
Patchy rain possible
 10° /5° 1.1 mm 2
27 May Partly cloudy
Partly cloudy
 20° /5° 0 mm 5
28 May Cloudy
Cloudy
 24° /11° 2.2 mm 6
29 May Sunny
Sunny
 20° /10° 0.1 mm 5
30 May Partly cloudy
Partly cloudy
 22° /7° 0 mm 5
31 May Overcast
Overcast
 19° /9° 2.8 mm 4
Next
Important Notice
Our weather forecast for New Brunswick in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the New Brunswick forecast closer to your planned date for the most up-to-date weather information.
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New Brunswick in May - FAQ

What are the expected maximum and minimum temperatures in New Brunswick during May?

During May, expect a variety of temperatures with highs around 14° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in New Brunswick during May?

Significant rainfall exceeding 113.5 mm is expected in New Brunswick during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in New Brunswick during May?

The average wind speed in New Brunswick during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in New Brunswick

Explore the daily rainfall trends and prepare for New Brunswicks May weather 💧
Typically, New Brunswick has 21 rainy days in May with a total of 113.5 mm of rainfall.

UV exposure in New Brunswick during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Provinces in New Brunswick
Select a province for an accurate weather forecast
Saint John CountyWestmorland County
Top locations in New Brunswick
Select a location for an accurate weather forecast
DieppeFrederictonMonctonSaint John
More Locations

Quick links

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Location coordinates Where is New Brunswick?

Get accurate weather forecasts for New Brunswick, located at latitude 46.095 and longitude -64.797. Stay updated with localized weather information tailored for New Brunswick.

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