Thurso, Canada experiences average highs of 12°C (54°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.
Thurso, Canada Weather & Climate 2026
Monthly climate averages for Thurso, Canada. Based on 10-year ERA5 reanalysis data.
Climate Overview
At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.5/10
Best: May, June, July, August, September
UV Index
4
Low
Temperature 12°C / 3°C
Feels Like 10°C / 1°C
Rainy Days 11
Rainfall 94 mm
Sunshine 8 h
Humidity 74%
Wind Speed 16 km/h
Dew Point 3°C
Snow Days 10 days
Frost Days 18 days
Hottest Month
26°C
July
Avg Low 18°C
Rain 12 days
Coldest Month
-12°C
January
Avg High -4°C
Rain 11 days
Driest Month
7 days
September
Avg High 21°C
Avg Low 13°C
Windiest Month
18 km/h
April (Gusts 42)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:27
Daylight 15.3h
Sunset 20:47
Live conditions —
Thurso on the map · live conditions
Thurso, Canada
- Continent
- Americas
- Country
- Canada
- City
- Thurso
- Population
- 2.5K
- Coordinates
- 45.60°, -75.25°
Seasonal Breakdown
Spring
Mar–May
Avg High 11°C
Avg Low 1°C
Rain 12 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 25°C
Avg Low 16°C
Rain 12 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 14°C
Avg Low 6°C
Rain 10 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -2°C
Avg Low -10°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: -4°C / -12°C . Feb: -2°C / -11°C . Mar: 3°C / -5°C . Apr: 10°C / 1°C . May: 19°C / 9°C . Jun: 24°C / 14°C . Jul: 26°C / 18°C . Aug: 25°C / 17°C . Sep: 21°C / 13°C . Oct: 14°C / 7°C . Nov: 5°C / -1°C . Dec: -1°C / -7°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 77 mm. Feb: 80 mm. Mar: 89 mm. Apr: 111 mm. May: 97 mm. Jun: 101 mm. Jul: 113 mm. Aug: 106 mm. Sep: 67 mm. Oct: 112 mm. Nov: 81 mm. Dec: 89 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 78%. Feb: 76%. Mar: 72%. Apr: 67%. May: 67%. Jun: 71%. Jul: 74%. Aug: 76%. Sep: 76%. Oct: 77%. Nov: 78%. Dec: 78%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 18 km/h . Mar: 18 km/h . Apr: 18 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 13 km/h . Sep: 14 km/h . Oct: 16 km/h . Nov: 17 km/h . Dec: 17 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 6h. Mar: 8h. Apr: 8h. May: 10h. Jun: 11h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 7h. Nov: 5h. Dec: 4h.
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: 17 days. Feb: 16 days. Mar: 11 days. Apr: 5 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 8 days. Dec: 15 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 · 27°C | Jul · 26°C |
| Coldest month | Feb 2025 · -13°C | Jan · -12°C |
| Wettest month | Oct 2025 · 118 mm | Jul · 113 mm |
| Windiest month | Mar 2025 · 19 km/h | Apr · 18 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Good 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 | -4°C / -12°C | -8°C / -17°C | 11days (77 mm) Wet | 4.9h Fair | 78% Humid | 1.8 Low | Poor | View Details |
| February | -2°C / -11°C | -7°C / -16°C | 12days (80 mm) Wet | 6h Fair | 76% Humid | 2.9 Moderate | Poor | View Details |
| March | 3°C / -5°C | -1°C / -10°C | 12days (89 mm) Wet | 7.5h Good | 72% Muggy | 3.8 Moderate | Poor | View Details |
| April | 10°C / 1°C | 7°C / -3°C | 12days (111 mm) Wet | 8.3h Good | 67% Muggy | 4.6 Moderate | Poor | View Details |
| May best | 19°C / 9°C | 18°C / 6°C | 11days (97 mm) Wet | 10.2h Excellent | 67% Muggy | 5.5 High | Good | View Details |
| June best | 24°C / 14°C | 24°C / 13°C | 12days (101 mm) Wet | 10.8h Excellent | 71% Muggy | 6.2 High | Excellent | View Details |
| July best | 26°C / 18°C | 28°C / 18°C | 12days (113 mm) Wet | 11.9h Excellent | 74% Muggy | 6.5 High | Excellent | View Details |
| August best | 25°C / 17°C | 26°C / 17°C | 12days (106 mm) Wet | 10.5h Excellent | 76% Humid | 5.6 High | Excellent | View Details |
| September best | 21°C / 13°C | 21°C / 12°C | 7days (67 mm) Good | 9.3h Good | 76% Humid | 4.8 Moderate | Excellent | View Details |
| October | 14°C / 7°C | 12°C / 4°C | 12days (112 mm) Wet | 6.5h Fair | 77% Humid | 3 Moderate | Fair | View Details |
| November | 5°C / -1°C | 2°C / -5°C | 12days (81 mm) Wet | 4.8h Fair | 78% Humid | 2 Low | Poor | View Details |
| December | -1°C / -7°C | -5°C / -12°C | 12days (89 mm) Wet | 4.1h Fair | 78% Humid | 1.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Thurso are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Thurso, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Thurso is July, with average daytime highs of 26°C (80°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Thurso is January, with average overnight lows of -12°C (11°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Thurso is July, averaging 113mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Thurso runs through February, March, April, June, with the heaviest rainfall in February. Based on 10-year averages for Thurso.
Thurso receives approximately 95 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Thurso.
The least favorable months to visit Thurso are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Thurso is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Thurso is 74%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Thurso receives snow. Months with snowfall average 10 snow days and 22 cm (9 in) of accumulation, with about 18 frost days during winter.
Average wind speeds in Thurso are 16 km/h (10 mph). The windiest month is April with peak winds reaching 18 km/h (11 mph) (gusts up to 42 km/h / 26 mph).
Thurso averages 3 clear-sky days per month with overall cloud cover around 65%. The clearest skies occur in September.
The annual average dew point in Thurso is 3°C (37°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Thurso 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 Thurso ranges from 1°C (34°F) to 10°C (50°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 Thurso. It earns a climate score of 8.4/10 with Excellent.
For July in Thurso, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 26°C (80°F) and 12 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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