Dover, Canada experiences average highs of 10°C (50°F) and lows of 3°C (37°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Average highs have warmed by 1.5°C (2.7°F) across the available records.
Dover, Canada Weather & Climate 2026
Monthly climate averages for Dover, 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
3.8/10
Best: June, July, August, September
UV Index
3
Low
Temperature 10°C / 3°C
Feels Like 7°C / -1°C
Rainy Days 12
Rainfall 94 mm
Sunshine 6 h
Humidity 79%
Wind Speed 22 km/h
Dew Point 3°C
Snow Days 12 days
Frost Days 19 days
Hottest Month
22°C
July
Avg Low14°C
Rain11days
Coldest Month
-8°C
February
Avg High-1°C
Rain12days
Driest Month
11days
May
Avg High11°C
Avg Low3°C
Windiest Month
26 km/h
December (Gusts 56)
Sea Temperature
-1°C – 17°C
Warmest water: August (
16.5°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:03
Daylight 16.2h
Sunset 21:12
Live conditions—
Dover on the map · live conditions
Dover, Canada
- Continent
- Americas
- Country
- Canada
- City
- Dover
- Population
- 579
- Coordinates
- 48.87°, -53.96°
Seasonal Breakdown
Spring
Mar–May
Avg High 6°C
Avg Low -1°C
Rain 12 days/mo
Summer
Jun–Aug
Avg High 21°C
Avg Low 13°C
Rain 11 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 12°C
Avg Low 7°C
Rain 13 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 0°C
Avg Low -5°C
Rain 13 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 0°C / -6°C . Feb: -1°C / -8°C . Mar: 2°C / -5°C . Apr: 6°C / -1°C . May: 11°C / 3°C . Jun: 17°C / 9°C . Jul: 22°C / 14°C . Aug: 22°C / 15°C . Sep: 18°C / 11°C . Oct: 12°C / 7°C . Nov: 7°C / 2°C . Dec: 2°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 101 mm. Feb: 104 mm. Mar: 102 mm. Apr: 96 mm. May: 73 mm. Jun: 73 mm. Jul: 80 mm. Aug: 75 mm. Sep: 83 mm. Oct: 87 mm. Nov: 133 mm. Dec: 117 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 80%. Feb: 77%. Mar: 78%. Apr: 79%. May: 77%. Jun: 78%. Jul: 78%. Aug: 78%. Sep: 79%. Oct: 81%. Nov: 82%. Dec: 81%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 24 km/h . Feb: 26 km/h . Mar: 24 km/h . Apr: 23 km/h . May: 20 km/h . Jun: 20 km/h . Jul: 18 km/h . Aug: 19 km/h . Sep: 21 km/h . Oct: 21 km/h . Nov: 26 km/h . Dec: 26 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 5h. Mar: 6h. Apr: 7h. May: 8h. Jun: 8h. Jul: 9h. Aug: 9h. Sep: 7h. Oct: 5h. Nov: 4h. Dec: 3h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 0°C . Feb: -1°C . Mar: -1°C . Apr: 1°C . May: 4°C . Jun: 8°C . Jul: 14°C . Aug: 17°C . Sep: 14°C . Oct: 10°C . Nov: 6°C . Dec: 2°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 2. Mar: UV 3. Apr: UV 4. May: UV 5. Jun: UV 5. Jul: UV 6. Aug: UV 5. Sep: UV 4. Oct: UV 3. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 17 days. Feb: 15 days. Mar: 16 days. Apr: 10 days. May: 3 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 8 days. Dec: 16 days.
Climate Trends
Average highs have warmed by 1.5°C (2.7°F) 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 · 24°C | Jul · 22°C |
| Coldest month | Feb 2025 · -8°C | Feb · -8°C |
| Wettest month | Dec 2025 · 202 mm | Nov · 133 mm |
| Windiest month | Dec 2025 · 32 km/h | Dec · 26 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Poor June best
Good July best
Excellent August best
Excellent September best
Good October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 0°C / -6°C | -5°C / -12°C | 14days (101 mm) Wet | 3.8h Poor | 80% Humid | 1.5 Low | Poor | View Details |
| February | -1°C / -8°C | -6°C / -14°C | 12days (104 mm) Wet | 5.4h Fair | 77% Humid | 2.3 Moderate | Poor | View Details |
| March | 2°C / -5°C | -3°C / -10°C | 13days (102 mm) Wet | 6.4h Fair | 78% Humid | 3.2 Moderate | Poor | View Details |
| April | 6°C / -1°C | 2°C / -5°C | 13days (96 mm) Wet | 6.7h Fair | 79% Humid | 4.3 Moderate | Poor | View Details |
| May | 11°C / 3°C | 8°C / -1°C | 11days (73 mm) Wet | 7.7h Good | 77% Humid | 5.2 High | Poor | View Details |
| June best | 17°C / 9°C | 16°C / 6°C | 11days (73 mm) Wet | 8.2h Good | 78% Humid | 5.3 High | Good | View Details |
| July best | 22°C / 14°C | 22°C / 13°C | 11days (80 mm) Wet | 9h Good | 78% Humid | 5.9 High | Excellent | View Details |
| August best | 22°C / 15°C | 22°C / 14°C | 11days (75 mm) Wet | 8.5h Good | 78% Humid | 5.2 High | Excellent | View Details |
| September best | 18°C / 11°C | 16°C / 9°C | 12days (83 mm) Wet | 6.7h Fair | 79% Humid | 4 Moderate | Good | View Details |
| October | 12°C / 7°C | 9°C / 3°C | 11days (87 mm) Wet | 5.4h Fair | 81% Humid | 2.6 Moderate | Fair | View Details |
| November | 7°C / 2°C | 3°C / -3°C | 16days (133 mm) Wet | 3.6h Poor | 82% Humid | 1.3 Low | Poor | View Details |
| December | 2°C / -2°C | -3°C / -8°C | 13days (117 mm) Wet | 3h Poor | 81% Humid | 1.1 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Dover are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Dover, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Dover is July, with average daytime highs of 22°C (72°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Dover is February, with average overnight lows of -8°C (18°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Dover is November, averaging 133mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Dover runs through November, January, March, April, with the heaviest rainfall in November. Based on 10-year averages for Dover.
Dover receives approximately 74 sunshine hours per year. The sunniest month is July with around 9 hours. Based on climate data for Dover.
The least favorable months to visit Dover are January, February, March, 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 Dover is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Dover is 79%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 6°C (43°F), which most swimmers will find too cold without a wetsuit.
Yes, Dover receives snow. Months with snowfall average 12 snow days and 36 cm (14 in) of accumulation, with about 19 frost days during winter.
Average wind speeds in Dover are 22 km/h (14 mph). The windiest month is December with peak winds reaching 26 km/h (16 mph) (gusts up to 56 km/h / 35 mph).
Dover averages 1 clear-sky days per month with overall cloud cover around 74%. The clearest skies occur in September.
The annual average dew point in Dover is 3°C (37°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Dover 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 Dover ranges from -1°C (30°F) to 7°C (45°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Dover. It earns a climate score of 6.8/10 with Good.
For June in Dover, pack Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. With average highs of 17°C (63°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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