Sidney, Canada experiences average highs of 14°C (57°F) and lows of 9°C (48°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Average highs have stayed broadly stable across the available records.
Sidney, Canada Weather & Climate 2026
Monthly climate averages for Sidney, 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
5.3/10
Best: July, August, September
UV Index
4
Low
Temperature 14°C / 9°C
Feels Like 12°C / 7°C
Rainy Days 12
Rainfall 99 mm
Sunshine 8 h
Humidity 79%
Wind Speed 14 km/h
Dew Point 8°C
Snow Days 4 days
Frost Days 3 days
Hottest Month
22°C
August
Avg Low 16°C
Rain 4 days
Coldest Month
3°C
February
Avg High 7°C
Rain 14 days
Driest Month
3 days
July
Avg High 22°C
Avg Low 15°C
Windiest Month
16 km/h
February (Gusts 34)
Sea Temperature
7°C – 17°C
Warmest water: August (
17.1°C
)
Worst Time to Visit
Consider avoiding January, February, December due to very cold temperatures, heavy rainfall.
Sun Position
Sunrise 05:27
Daylight 15.7h
Sunset 21:11
Live conditions —
Sidney on the map · live conditions
Sidney, Canada
- Continent
- Americas
- Country
- Canada
- City
- Sidney
- Population
- 12.3K
- Elevation
- 5 m
- Coordinates
- 48.65°, -123.40°
Seasonal Breakdown
Spring
Mar–May
Avg High 13°C
Avg Low 7°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 21°C
Avg Low 14°C
Rain 5 days/mo
2/3 best months
Autumn
Sep–Nov
Avg High 14°C
Avg Low 10°C
Rain 14 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 7°C
Avg Low 3°C
Rain 16 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: 7°C / 3°C . Feb: 7°C / 3°C . Mar: 10°C / 5°C . Apr: 13°C / 7°C . May: 16°C / 10°C . Jun: 19°C / 12°C . Jul: 22°C / 15°C . Aug: 22°C / 16°C . Sep: 19°C / 13°C . Oct: 14°C / 9°C . Nov: 10°C / 6°C . Dec: 7°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 181 mm. Feb: 108 mm. Mar: 110 mm. Apr: 86 mm. May: 45 mm. Jun: 39 mm. Jul: 13 mm. Aug: 22 mm. Sep: 66 mm. Oct: 134 mm. Nov: 192 mm. Dec: 188 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 85%. Feb: 80%. Mar: 81%. Apr: 78%. May: 76%. Jun: 73%. Jul: 72%. Aug: 74%. Sep: 80%. Oct: 84%. Nov: 85%. Dec: 85%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 15 km/h . Feb: 16 km/h . Mar: 15 km/h . Apr: 15 km/h . May: 13 km/h . Jun: 13 km/h . Jul: 12 km/h . Aug: 11 km/h . Sep: 12 km/h . Oct: 14 km/h . Nov: 16 km/h . Dec: 16 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 6h. Mar: 8h. Apr: 9h. May: 12h. Jun: 13h. Jul: 14h. Aug: 12h. Sep: 10h. Oct: 7h. Nov: 4h. Dec: 3h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 8°C . Feb: 7°C . Mar: 8°C . Apr: 9°C . May: 12°C . Jun: 14°C . Jul: 17°C . Aug: 17°C . Sep: 16°C . Oct: 12°C . Nov: 10°C . Dec: 8°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 3. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 1.
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: 5 days. Feb: 6 days. Mar: 2 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 5 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 29 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 22°C | Aug · 22°C |
| Coldest month | Feb 2025 · 2°C | Feb · 3°C |
| Wettest month | Dec 2025 · 232 mm | Nov · 192 mm |
| Windiest month | Feb 2025 · 17 km/h | Feb · 16 km/h |
Month-by-Month Weather Table
January
Wet 
February
Poor March
Poor April
Fair May
Good June
Good July best
Excellent August best
Excellent September best
Excellent October
Fair November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 3°C | 5°C / 0°C | 16days (181 mm) Wet | 4h Fair | 85% Humid | 1.3 Low | Wet | View Details |
| February | 7°C / 3°C | 4°C / -1°C | 14days (108 mm) Wet | 5.6h Fair | 80% Humid | 1.8 Low | Poor | View Details |
| March | 10°C / 5°C | 7°C / 2°C | 16days (110 mm) Wet | 7.5h Good | 81% Humid | 3.2 Moderate | Poor | View Details |
| April | 13°C / 7°C | 11°C / 4°C | 14days (86 mm) Wet | 9.4h Good | 78% Humid | 5 Moderate | Fair | View Details |
| May | 16°C / 10°C | 16°C / 9°C | 9days (45 mm) Wet | 11.6h Excellent | 76% Humid | 5.9 High | Good | View Details |
| June | 19°C / 12°C | 19°C / 11°C | 8days (39 mm) Wet | 12.6h Excellent | 73% Muggy | 6.5 High | Good | View Details |
| July best | 22°C / 15°C | 22°C / 15°C | 3days (13 mm) Excellent | 13.6h Excellent | 72% Muggy | 7 High | Excellent | View Details |
| August best | 22°C / 16°C | 23°C / 16°C | 4days (22 mm) Good | 12.3h Excellent | 74% Muggy | 6 High | Excellent | View Details |
| September best | 19°C / 13°C | 18°C / 13°C | 9days (66 mm) Wet | 9.7h Good | 80% Humid | 4.6 Moderate | Excellent | View Details |
| October | 14°C / 9°C | 12°C / 8°C | 14days (134 mm) Wet | 6.6h Fair | 84% Humid | 2.7 Moderate | Fair | View Details |
| November | 10°C / 6°C | 7°C / 3°C | 18days (192 mm) Wet | 4.4h Fair | 85% Humid | 1.5 Low | Wet | View Details |
| December | 7°C / 4°C | 4°C / 0°C | 19days (188 mm) Wet | 3.4h Poor | 85% Humid | 1 Low | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Sidney are July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Sidney, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Sidney is August, 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 Sidney is February, with average overnight lows of 3°C (37°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Sidney is November, averaging 192mm of precipitation across 18 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Sidney runs through December, November, January, March, with the heaviest rainfall in December. Based on 10-year averages for Sidney.
Sidney receives approximately 101 sunshine hours per year. The sunniest month is July with around 14 hours. Based on climate data for Sidney.
The least favorable months to visit Sidney are January, February, December, primarily due to very cold temperatures, heavy rainfall. For the best conditions, consider July, August, September instead.
The annual average UV index in Sidney is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Sidney is 79%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 11°C (52°F), which most swimmers will find too cold without a wetsuit.
Yes, Sidney receives snow. Months with snowfall average 4 snow days and 9 cm (4 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in Sidney are 14 km/h (9 mph). The windiest month is February with peak winds reaching 16 km/h (10 mph) (gusts up to 34 km/h / 21 mph).
Sidney averages 4 clear-sky days per month with overall cloud cover around 63%. The clearest skies occur in July.
The annual average dew point in Sidney is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Sidney has a Warm-Summer Mediterranean climate, classified as Csb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Sidney ranges from 7°C (45°F) to 12°C (54°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, July is a great time to visit Sidney. It earns a climate score of 9.8/10 with Excellent.
For July in Sidney, pack Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 22°C (71°F) and 3 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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