Sinop, Turkey experiences average highs of 18°C (64°F) and lows of 11°C (52°F) throughout the year. Rainfall is moderate, averaging about 9 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 0.6°C (1.1°F) across the available records.
Sinop, Turkey Weather & Climate 2026
Monthly climate averages for Sinop, Turkey. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Apr–Sep 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.8/10
Best: June, July, August, September
UV Index
5
Low
Temperature 18°C / 11°C
Feels Like 17°C / 8°C
Rainy Days 9
Rainfall 53 mm
Sunshine 9 h
Humidity 76%
Wind Speed 23 km/h
Dew Point 10°C
Snow Days 2 days
Frost Days 4 days
Hottest Month
28°C
August
Avg Low 20°C
Rain 3 days
Coldest Month
3°C
January
Avg High 10°C
Rain 14 days
Driest Month
2 days
July
Avg High 27°C
Avg Low 20°C
Windiest Month
24 km/h
February (Gusts 35)
Sea Temperature
10°C – 25°C
Warmest water: August (
24.8°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to frequent rain.
Sun Position
Sunrise 05:17
Daylight 14.9h
Sunset 20:13
Live conditions —
Sinop on the map · live conditions
Sinop, Turkey
- Continent
- Asia
- Country
- Turkey
- City
- Sinop
- Population
- 34.8K
- Coordinates
- 42.03°, 35.16°
Seasonal Breakdown
Spring
Mar–May
Avg High 16°C
Avg Low 8°C
Rain 9 days/mo
Summer
Jun–Aug
Avg High 27°C
Avg Low 19°C
Rain 3 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 20°C
Avg Low 13°C
Rain 9 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 10°C
Avg Low 4°C
Rain 13 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: 10°C / 3°C . Feb: 10°C / 3°C . Mar: 12°C / 4°C . Apr: 15°C / 7°C . May: 19°C / 12°C . Jun: 24°C / 17°C . Jul: 27°C / 20°C . Aug: 28°C / 20°C . Sep: 24°C / 17°C . Oct: 20°C / 13°C . Nov: 16°C / 8°C . Dec: 12°C / 5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 85 mm. Feb: 69 mm. Mar: 72 mm. Apr: 38 mm. May: 38 mm. Jun: 25 mm. Jul: 18 mm. Aug: 23 mm. Sep: 49 mm. Oct: 66 mm. Nov: 64 mm. Dec: 91 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 78%. Feb: 80%. Mar: 80%. Apr: 79%. May: 78%. Jun: 75%. Jul: 69%. Aug: 70%. Sep: 73%. Oct: 78%. Nov: 77%. Dec: 79%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 24 km/h . Feb: 24 km/h . Mar: 23 km/h . Apr: 24 km/h . May: 22 km/h . Jun: 22 km/h . Jul: 24 km/h . Aug: 22 km/h . Sep: 23 km/h . Oct: 23 km/h . Nov: 22 km/h . Dec: 23 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 10h. May: 11h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 10h. Oct: 9h. Nov: 7h. Dec: 6h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 11°C . Feb: 10°C . Mar: 10°C . Apr: 11°C . May: 14°C . Jun: 20°C . Jul: 24°C . Aug: 25°C . Sep: 23°C . Oct: 20°C . Nov: 17°C . Dec: 13°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 4. 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: 3 days. Feb: 3 days. Mar: 1 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 1 days.
Climate Trends
Average highs have warmed by 0.6°C (1.1°F) across the available records. Average rainfall is trending drier by about 10 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 28°C | Aug · 28°C |
| Coldest month | Feb 2025 · 1°C | Jan · 3°C |
| Wettest month | Dec 2025 · 162 mm | Dec · 91 mm |
| Windiest month | Dec 2025 · 26 km/h | Feb · 24 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Good May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Fair December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 10°C / 3°C | 6°C / -2°C | 14days (85 mm) Wet | 5.9h Fair | 78% Humid | 2 Low | Poor | View Details |
| February | 10°C / 3°C | 6°C / -1°C | 11days (69 mm) Wet | 7.1h Good | 80% Humid | 2.7 Moderate | Poor | View Details |
| March | 12°C / 4°C | 9°C / 1°C | 11days (72 mm) Wet | 8.5h Good | 80% Humid | 4.3 Moderate | Poor | View Details |
| April | 15°C / 7°C | 14°C / 4°C | 9days (38 mm) Wet | 10.3h Excellent | 79% Humid | 5.6 High | Good | View Details |
| May | 19°C / 12°C | 19°C / 10°C | 7days (38 mm) Good | 11.3h Excellent | 78% Humid | 6.3 High | Good | View Details |
| June best | 24°C / 17°C | 25°C / 17°C | 4days (25 mm) Good | 12.9h Excellent | 75% Muggy | 7.3 Very High | Excellent | View Details |
| July best | 27°C / 20°C | 28°C / 20°C | 2days (18 mm) Excellent | 13.3h Excellent | 69% Muggy | 7.3 Very High | Excellent | View Details |
| August best | 28°C / 20°C | 29°C / 21°C | 3days (23 mm) Excellent | 12.3h Excellent | 70% Muggy | 6.7 High | Excellent | View Details |
| September best | 24°C / 17°C | 24°C / 16°C | 8days (49 mm) Wet | 10.3h Excellent | 73% Muggy | 5.3 High | Excellent | View Details |
| October | 20°C / 13°C | 18°C / 11°C | 10days (66 mm) Wet | 8.5h Good | 78% Humid | 3.7 Moderate | Good | View Details |
| November | 16°C / 8°C | 13°C / 5°C | 10days (64 mm) Wet | 7h Good | 77% Humid | 2.3 Moderate | Fair | View Details |
| December | 12°C / 5°C | 9°C / 1°C | 14days (91 mm) Wet | 5.7h Fair | 79% Humid | 1.8 Low | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Sinop are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Sinop, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Sinop is August, with average daytime highs of 28°C (82°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Sinop is January, with average overnight lows of 3°C (37°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Sinop is December, averaging 91mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Sinop runs through January, December, February, March, with the heaviest rainfall in January. Based on 10-year averages for Sinop.
Sinop receives approximately 113 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Sinop.
The least favorable months to visit Sinop are January, February, March, December, primarily due to frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Sinop is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Sinop is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in July, August, September average 24°C (75°F), which is warm and comfortable for swimming and water activities.
Yes, Sinop receives snow. Months with snowfall average 2 snow days and 3 cm (1 in) of accumulation, with about 4 frost days during winter.
Average wind speeds in Sinop are 23 km/h (14 mph). The windiest month is February with peak winds reaching 24 km/h (15 mph) (gusts up to 35 km/h / 22 mph).
Sinop averages 8 clear-sky days per month with overall cloud cover around 49%. The clearest skies occur in July.
The annual average dew point in Sinop is 10°C (50°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Sinop has a Hot-Summer Mediterranean climate, classified as Csa 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 Sinop ranges from 8°C (46°F) to 17°C (63°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 Sinop. It earns a climate score of 10/10 with Excellent.
For July in Sinop, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Comfortable walking shoes. With average highs of 27°C (81°F) and 2 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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