Dieppe, Canada experiences average highs of 11°C (52°F) and lows of 3°C (37°F) throughout the year. Rainfall is moderate, averaging about 11 rainy days per month. Average highs have stayed broadly stable across the available records.
Dieppe, Canada Weather & Climate 2026
Monthly climate averages for Dieppe, Canada. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.2/10
Best: June, July, August, September
UV Index
4
Low
Temperature 11°C / 3°C
Feels Like 9°C / 0°C
Rainy Days 11
Rainfall 93 mm
Sunshine 8 h
Humidity 76%
Wind Speed 19 km/h
Dew Point 3°C
Snow Days 9 days
Frost Days 20 days
Hottest Month
25°C
July
Avg Low 17°C
Rain 11 days
Coldest Month
-10°C
January
Avg High -2°C
Rain 12 days
Driest Month
9 days
September
Avg High 20°C
Avg Low 13°C
Windiest Month
21 km/h
February (Gusts 48)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:43
Daylight 15.4h
Sunset 21:07
Live conditions —
Dieppe on the map · live conditions
Dieppe, Canada
- Continent
- Americas
- Country
- Canada
- City
- Dieppe
- Population
- 27.3K
- Coordinates
- 46.08°, -64.69°
Seasonal Breakdown
Spring
Mar–May
Avg High 9°C
Avg Low 0°C
Rain 12 days/mo
Summer
Jun–Aug
Avg High 23°C
Avg Low 15°C
Rain 11 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 7°C
Rain 10 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -1°C
Avg Low -9°C
Rain 12 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -2°C / -10°C . Feb: -1°C / -10°C . Mar: 2°C / -5°C . Apr: 9°C / 1°C . May: 15°C / 6°C . Jun: 21°C / 12°C . Jul: 25°C / 17°C . Aug: 24°C / 16°C . Sep: 20°C / 13°C . Oct: 14°C / 8°C . Nov: 6°C / 0°C . Dec: 0°C / -6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 108 mm. Feb: 92 mm. Mar: 101 mm. Apr: 82 mm. May: 80 mm. Jun: 97 mm. Jul: 91 mm. Aug: 85 mm. Sep: 78 mm. Oct: 86 mm. Nov: 111 mm. Dec: 101 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 77%. Feb: 75%. Mar: 75%. Apr: 73%. May: 73%. Jun: 75%. Jul: 77%. Aug: 76%. Sep: 77%. Oct: 77%. Nov: 77%. Dec: 76%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 20 km/h . Feb: 21 km/h . Mar: 21 km/h . Apr: 20 km/h . May: 18 km/h . Jun: 18 km/h . Jul: 17 km/h . Aug: 16 km/h . Sep: 18 km/h . Oct: 18 km/h . Nov: 21 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 6h. Mar: 7h. Apr: 8h. May: 9h. Jun: 10h. Jul: 11h. Aug: 10h. Sep: 9h. Oct: 7h. Nov: 5h. Dec: 5h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 6. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow Days Snowfall
Snow Days: Jan: 16 days. Feb: 14 days. Mar: 14 days. Apr: 6 days. May: 1 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 6 days. Dec: 13 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 25°C | Jul · 25°C |
| Coldest month | Feb 2025 · -12°C | Jan · -10°C |
| Wettest month | Mar 2025 · 123 mm | Nov · 111 mm |
| Windiest month | Dec 2025 · 23 km/h | Feb · 21 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -2°C / -10°C | -7°C / -15°C | 12days (108 mm) Wet | 4.8h Fair | 77% Humid | 1.8 Low | Poor | View Details |
| February | -1°C / -10°C | -6°C / -15°C | 11days (92 mm) Wet | 6.3h Fair | 75% Muggy | 2.9 Moderate | Poor | View Details |
| March | 2°C / -5°C | -2°C / -11°C | 13days (101 mm) Wet | 7.2h Good | 75% Muggy | 3.5 Moderate | Poor | View Details |
| April | 9°C / 1°C | 5°C / -4°C | 12days (82 mm) Wet | 8.2h Good | 73% Muggy | 4.5 Moderate | Poor | View Details |
| May | 15°C / 6°C | 13°C / 3°C | 11days (80 mm) Wet | 9.3h Good | 73% Muggy | 5.7 High | Fair | View Details |
| June best | 21°C / 12°C | 21°C / 11°C | 12days (97 mm) Wet | 10.2h Excellent | 75% Muggy | 5.9 High | Excellent | View Details |
| July best | 25°C / 17°C | 26°C / 17°C | 11days (91 mm) Wet | 10.7h Excellent | 77% Humid | 6.6 High | Excellent | View Details |
| August best | 24°C / 16°C | 25°C / 16°C | 10days (85 mm) Wet | 10.2h Excellent | 76% Humid | 5.9 High | Excellent | View Details |
| September best | 20°C / 13°C | 19°C / 11°C | 9days (78 mm) Wet | 8.5h Good | 77% Humid | 4.8 Moderate | Excellent | View Details |
| October | 14°C / 8°C | 12°C / 5°C | 10days (86 mm) Wet | 6.9h Fair | 77% Humid | 3.2 Moderate | Fair | View Details |
| November | 6°C / 0°C | 3°C / -4°C | 12days (111 mm) Wet | 4.8h Fair | 77% Humid | 1.7 Low | Poor | View Details |
| December | 0°C / -6°C | -4°C / -12°C | 13days (101 mm) Wet | 4.5h Fair | 76% Humid | 1.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Dieppe are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Dieppe, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Dieppe is July, with average daytime highs of 25°C (76°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Dieppe is January, with average overnight lows of -10°C (14°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Dieppe is November, averaging 111mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Dieppe runs through March, December, January, April, with the heaviest rainfall in March. Based on 10-year averages for Dieppe.
Dieppe receives approximately 92 sunshine hours per year. The sunniest month is July with around 11 hours. Based on climate data for Dieppe.
The least favorable months to visit Dieppe are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Dieppe is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Dieppe is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Dieppe receives snow. Months with snowfall average 9 snow days and 24 cm (9 in) of accumulation, with about 20 frost days during winter.
Average wind speeds in Dieppe are 19 km/h (12 mph). The windiest month is February with peak winds reaching 21 km/h (13 mph) (gusts up to 48 km/h / 30 mph).
Dieppe averages 3 clear-sky days per month with overall cloud cover around 64%. The clearest skies occur in September.
The annual average dew point in Dieppe is 3°C (37°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Dieppe has a Warm-Summer Continental climate, classified as Dfb under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Dieppe ranges from 0°C (32°F) to 9°C (48°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, July is a great time to visit Dieppe. It earns a climate score of 8.3/10 with Excellent.
For July in Dieppe, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 25°C (76°F) and 11 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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