Mersin in Summer
In summer (June, July and August), Mersin sees average daytime highs around 29°C and overnight lows near 25°C, with 10 mm of rain over about 3 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 26°C in early June to 30°C by late August. The sky is clear or mostly clear about 93% of the time across summer, and the air most often feels oppressive.
Summer is Mersin's 2nd-best season to visit on our travel score. For the whole year in context, see Mersin's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 10 mm
- 3 wet days
- Avg wind
- 10 km/h
- Travel score
- 7.5
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Mersin in Summer
Over the season highs climb from about 26°C in early June to 30°C by late August.
A typical summer day in Mersin reaches about 29°C and drops to 25°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Mersin
Once humidity and wind are folded in, summer brings about 58 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mersin weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 10° | 99 | 9.6 | 9.8 | 4.2 |
| Feb | 15° / 10° | 62 | 7.9 | 10.6 | 4.6 |
| Mar | 17° / 12° | 47 | 6.7 | 11.7 | 6.1 |
| Apr | 20° / 15° | 29 | 5.3 | 12.9 | 7.2 |
| May | 24° / 19° | 21 | 3.8 | 13.9 | 8.4 |
| Jun | 27° / 23° | 5 | 1.4 | 14.5 | 8.5 |
| Jul | 29° / 26° | 2 | 0.4 | 14.3 | 7.3 |
| Aug | 30° / 26° | 3 | 0.8 | 13.4 | 6.6 |
| Sep | 29° / 24° | 11 | 2.4 | 12.2 | 7.4 |
| Oct | 26° / 21° | 30 | 3.8 | 11 | 8.2 |
| Nov | 20° / 16° | 70 | 5.5 | 10 | 7.4 |
| Dec | 16° / 12° | 126 | 9.4 | 9.5 | 5.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 93% of the time across summer.
Chance of precipitation in Summer
Mersin gets around 10 mm of rain over 3 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 18 min in early June to 12 h 54 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.0 kWh/m².
Hazard calendar for Mersin
None of Mersin's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Mersin's rainy season runs November–February, when most of the year's rain falls.
Is summer a good time to visit Mersin?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Mersin for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Mersin in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mersin sees daytime highs around 29°C and nights near 25°C. Pack light clothes and sun protection.
Sea temperature near Mersin in Summer
The nearest coast averages about 27°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 21 km away) is warmest in August at about 29°C and coldest in February near 17°C.
It's comfortable for a long swim from May 3 to Dec 16 — about 7.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 17 | 17 | 18 | 21 | 25 | 28 | 29 | 28 | 26 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Tropical | Tropical | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 17 | Cool |
| Mar | 17 | Cool |
| Apr | 18 | Cool |
| May | 21 | Refreshing |
| Jun | 25 | Warm |
| Jul | 28 | Warm |
| Aug | 29 | Tropical |
| Sep | 28 | Tropical |
| Oct | 26 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Refreshing |
UV index in Mersin in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mersin peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 4 | 7 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | Very high | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Mersin in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Mersin is worst in May — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 16 | 20 | 21 | 21 | 18 | 15 | 17 | 17 | 15 | 15 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 16 | Moderate |
| Mar | 20 | Moderate |
| Apr | 21 | Moderate |
| May | 21 | Moderate |
| Jun | 18 | Moderate |
| Jul | 15 | Moderate |
| Aug | 17 | Moderate |
| Sep | 17 | Moderate |
| Oct | 15 | Moderate |
| Nov | 15 | Moderate |
| Dec | 13 | Moderate |
Where is Mersin?
Mersin sits at 36.8°N, 34.6°E, 10 m above sea level, in Turkey. The nearest listed city is Tarsus, 25 km away.
Topography around Mersin
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mersin.
Within 3 km, the terrain around Mersin has only modest variations in elevation — a maximum elevation change of 69 m around an average of 19 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,068 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,484 m.
The land around Mersin is covered by artificial surfaces (70%) and water (22%) within 3 km, water (37%) and trees (25%) within 16 km, and grassland (27%), trees (25%) and water (25%) within 80 km.
Turkey travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $18,599
- 2025
- Happiness
- 5.3 / 10
- World Happiness, 2025
- Homicide rate
- 3.2
- per 100k, 2023
- Road deaths
- 6.7
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 488
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mersin (36.812°, 34.6389°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.