Mersin, Turkey experiences average highs of 23°C (73°F) and lows of 14°C (57°F) throughout the year. The climate is relatively dry, with only 5 rainy days per month on average. Sunshine is abundant, averaging about 11 hours per day. Average highs have warmed by 1.0°C (1.8°F) across the available records.
Mersin, Turkey Weather & Climate 2026
Monthly climate averages for Mersin, Turkey. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Apr–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.6/10
Best: April, May, June, September, October
UV Index
6
High
Temperature 23°C / 14°C
Feels Like 24°C / 13°C
Rainy Days 5
Rainfall 42 mm
Sunshine 11 h
Humidity 69%
Wind Speed 18 km/h
Dew Point 13°C
Frost Days 2 days
Hottest Month
32°C
August
Avg Low24°C
Rain1days
Coldest Month
5°C
January
Avg High13°C
Rain10days
Driest Month
0days
July
Avg High32°C
Avg Low23°C
Windiest Month
20 km/h
August (Gusts 30)
Sea Temperature
17°C – 31°C
Warmest water: August (
31°C
)
Worst Time to Visit
Consider avoiding January, February, August, December due to less favorable weather conditions.
Sun Position
Sunrise 05:23
Daylight 14.7h
Sunset 20:03
Live conditions—
Mersin on the map · live conditions
Mersin, Turkey
- Continent
- Asia
- Country
- Turkey
- City
- Mersin
- Population
- 537.8K
- Coordinates
- 36.81°, 34.64°
Seasonal Breakdown
Spring
Mar–May
Avg High 21°C
Avg Low 12°C
Rain 5 days/mo
2/3 best months
Summer
Jun–Aug
Avg High 31°C
Avg Low 22°C
Rain 1 days/mo
1/3 best months
Autumn
Sep–Nov
Avg High 26°C
Avg Low 16°C
Rain 4 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 14°C
Avg Low 6°C
Rain 9 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: 13°C / 5°C . Feb: 15°C / 6°C . Mar: 18°C / 8°C . Apr: 22°C / 12°C . May: 25°C / 16°C . Jun: 29°C / 20°C . Jul: 32°C / 23°C . Aug: 32°C / 24°C . Sep: 30°C / 21°C . Oct: 27°C / 16°C . Nov: 21°C / 12°C . Dec: 15°C / 8°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 113 mm. Feb: 57 mm. Mar: 54 mm. Apr: 25 mm. May: 20 mm. Jun: 9 mm. Jul: 2 mm. Aug: 6 mm. Sep: 10 mm. Oct: 11 mm. Nov: 60 mm. Dec: 142 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 69%. Feb: 70%. Mar: 70%. Apr: 70%. May: 72%. Jun: 74%. Jul: 73%. Aug: 73%. Sep: 66%. Oct: 57%. Nov: 60%. Dec: 69%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 17 km/h . Mar: 19 km/h . Apr: 17 km/h . May: 17 km/h . Jun: 19 km/h . Jul: 20 km/h . Aug: 20 km/h . Sep: 17 km/h . Oct: 15 km/h . Nov: 17 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 8h. Feb: 9h. Mar: 10h. Apr: 12h. May: 13h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 11h. Oct: 10h. Nov: 8h. Dec: 7h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 18°C . Feb: 17°C . Mar: 18°C . Apr: 20°C . May: 23°C . Jun: 27°C . Jul: 30°C . Aug: 31°C . Sep: 29°C . Oct: 26°C . Nov: 23°C . Dec: 20°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 6. Oct: UV 5. Nov: UV 4. Dec: UV 3.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have warmed by 1.0°C (1.8°F) across the available records. Average rainfall is trending drier by about 22 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 33°C | Aug · 32°C |
| Coldest month | Feb 2025 · 3°C | Jan · 5°C |
| Wettest month | Dec 2025 · 113 mm | Dec · 142 mm |
| Windiest month | Jul 2025 · 22 km/h | Aug · 20 km/h |
Month-by-Month Weather Table
January
Fair 
February
Fair March
Good April best
Excellent May best
Excellent June best
Excellent July
Good August
Fair September best
Excellent October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 13°C / 5°C | 10°C / 2°C | 10days (113 mm) Wet | 7.5h Good | 69% Muggy | 2.9 Moderate | Fair | View Details |
| February | 15°C / 6°C | 13°C / 2°C | 7days (57 mm) Good | 9h Good | 70% Muggy | 4.1 Moderate | Fair | View Details |
| March | 18°C / 8°C | 16°C / 5°C | 7days (54 mm) Good | 10.1h Excellent | 70% Muggy | 5.6 High | Good | View Details |
| April best | 22°C / 12°C | 22°C / 10°C | 4days (25 mm) Good | 11.6h Excellent | 70% Muggy | 6.8 High | Excellent | View Details |
| May best | 25°C / 16°C | 27°C / 15°C | 5days (20 mm) Good | 12.6h Excellent | 72% Muggy | 7.5 Very High | Excellent | View Details |
| June best | 29°C / 20°C | 32°C / 22°C | 2days (9 mm) Excellent | 13.2h Excellent | 74% Muggy | 8 Very High | Excellent | View Details |
| July | 32°C / 23°C | 37°C / 26°C | 0days (2 mm) Excellent | 13.3h Excellent | 73% Muggy | 7.9 Very High | Good | View Details |
| August | 32°C / 24°C | 37°C / 28°C | 1days (6 mm) Excellent | 12.4h Excellent | 73% Muggy | 7.5 Very High | Fair | View Details |
| September best | 30°C / 21°C | 33°C / 22°C | 2days (10 mm) Excellent | 11.3h Excellent | 66% Muggy | 6.4 High | Excellent | View Details |
| October best | 27°C / 16°C | 27°C / 15°C | 3days (11 mm) Excellent | 10.2h Excellent | 57% Moderate | 5 Moderate | Excellent | View Details |
| November | 21°C / 12°C | 19°C / 9°C | 6days (60 mm) Good | 8.4h Good | 60% Moderate | 3.5 Moderate | Good | View Details |
| December | 15°C / 8°C | 13°C / 4°C | 9days (142 mm) Wet | 7.2h Good | 69% Muggy | 2.7 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Mersin are April, May, June, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Mersin, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Mersin is August, with average daytime highs of 32°C (90°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Mersin is January, with average overnight lows of 5°C (42°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Mersin is December, averaging 142mm of precipitation across 9 rainy days. An umbrella or waterproof jacket is essential.
Mersin receives approximately 127 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Mersin.
The least favorable months to visit Mersin are January, February, August, December, primarily due to less favorable weather conditions. For the best conditions, consider April, May, June, September, October instead.
The annual average UV index in Mersin is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Mersin is 69%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in May, June, July, August, September, October, November average 27°C (81°F), which is warm and comfortable for swimming and water activities.
Mersin rarely sees significant snowfall but does experience frost, averaging 2 frost days during the colder months.
Average wind speeds in Mersin are 18 km/h (11 mph). The windiest month is August with peak winds reaching 20 km/h (12 mph) (gusts up to 30 km/h / 19 mph).
Mersin averages 12 clear-sky days per month with overall cloud cover around 33%. The clearest skies occur in September.
The annual average dew point in Mersin is 13°C (55°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Mersin 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 Mersin ranges from 13°C (55°F) to 24°C (75°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Mersin. It earns a climate score of 9.4/10 with Excellent.
For June in Mersin, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 29°C (84°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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