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Forecast confidence: Medium · models disagree by 3°C

Dieppe weather

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Cloudy,rain likely tomorrow

Env. Canada, the European and the American model put Dieppe's high today between 13° and 16°, a 3° split. Tomorrow looks cloudy around 14°, with a 56% chance of rain.

15°
14°
16°
15°
17°
18°
Todaysplit ±3°Tomorrowsplit ±3°Mondaymodels agreeTuesdaysplit ±3°Wednesdaymodels agreeThursdaysplit ±2°
Env. CanadaGEM model
15°
Cloudy
Today 15°·Low ·Rain 0%
EuropeanECMWF
16°
Partly cloudy
Today 16°·Low ·Rain 0%
AmericanNOAA GFS
13°
Cloudy
Today 13°·Low ·Rain 0%
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Dieppe weather in numbers

measured normals and 10 years of recorded weather

Dieppe swings 39°C across the year, from 27°C highs in July to -12°C lows in February, and March is usually the wettest month in a year that brings about 1318 mm of precipitation. Over 10 years of recorded weather it averages 47 days a year at 25°C or above, 5 of them at 30°C or above, 147 frost nights, and rain on 140 days.

Warmest month
July
27°C average high
Coldest month
February
-12°C average low
Wettest month
March
1318 mm a year
Comfortable
4 months
May, June, August and September
Residents
27,000
share this forecast
Most accurate here
European
91/100 CheckWeather Score
Warm days
47 days
a year at 25°C or above
Frost nights
147 nights
a year below 0°C
Rain days
140 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Dieppe’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

Env. Canada, European, American side by side around Dieppe and nearby towns.Live rain radar →
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Dieppe hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Dieppe 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Cloudy
15°
±3°
Tomorrow
Cloudy
14°
±3°
Mon
Drizzle
16°
models agree
Tue
Cloudy
15°
±3°
Wed
Clear
17°
models agree
Thu
Cloudy
18°
±2°
Fri
Light drizzle
17°
±6°
Sat
Cloudy
17°
±4°
Sun
Mostly clear
18°
±3°
Mon
Rain
19° 11°
models agree
Tue
Heavy drizzle
20° 11°
models agree
Wed
Partly cloudy
20° 12°
±4°
Thu
Light rain
19° 12°
models agree
Fri
Cloudy
17° 10°
models agree

Dieppe, New Brunswick is at its warmest in Jul (average highs near 27°C) and coldest in Feb (lows around -12°C), with roughly 1318 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Dieppe right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Canada before you trust any single number.

Dieppe climate by month

average daytime high and overnight low across a typical year
Jan
-8°
Feb
-1°
-12°
Mar
-5°
Apr
10°
May
16°
Jun
21°
12°
Jul
27°
18°
Aug
24°
15°
Sep
21°
12°
Oct
15°
Nov
Dec
-6°

Which forecast is most accurate in Dieppe?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
91
/100rank #1
94±0.3°C98±1.2 km/t8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
81
/100rank #2
90±0.5°C97±1.5 km/t5877% hitNOAA / NCEP (United States)College Park, Maryland, USA
EC
Env. Canada
78
/100rank #3
91±0.5°C92±4.0 km/t5374% hitEnvironment and Climate Change CanadaDorval, Québec, Canada

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1304 cities. Lower error means a higher score. See which forecast model is most accurate in Canada, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.

Env. CanadaGEM model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°13° to 16°models agree0% to 0% chance
Tomorrow±3°13° to 15°±33%23% to 56% chance
Mon±1°15° to 17°±26%35% to 61% chance
Tue±3°13° to 16°±4%1% to 5% chance
Wed±1°16° to 17°models agree0% to 0% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Dieppe

today, local time
Sunrise
07:01
Sunset
19:22
Daylight
12h 21m

Common questions

What's the weather in Dieppe today?
On this page we show what Env. Canada, European, American each forecast for Dieppe today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Dieppe today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Dieppe and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Dieppe?
Over the last 30 days, the European model has been the most accurate for Dieppe (CheckWeather Score 91/100), ahead of the American at 81. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Dieppe?
July is typically the warmest month in Dieppe, with average highs around 27°C.
How cold does Dieppe get?
The coldest month in Dieppe is February, when overnight lows average about -12°C.
How much rain does Dieppe get?
Dieppe sees roughly 1318 mm of precipitation a year, with March usually the wettest month.

Nearby

More CA weather