Giresun in Summer
In summer (June, July and August), Giresun sees average daytime highs around 24°C and overnight lows near 20°C, with 283 mm of rain over about 38 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 21°C in early June to 24°C by late August. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels muggy.
Summer is Giresun's best season of the year to visit on our travel score. For the whole year in context, see Giresun's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 283 mm
- 38 wet days
- Avg wind
- 8 km/h
- Travel score
- 6.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Giresun in Summer
Over the season highs climb from about 21°C in early June to 24°C by late August.
A typical summer day in Giresun reaches about 24°C and drops to 20°C overnight. The warmest of the three months is August, the coolest June.
Giresun 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 9° / 5° | 132 | 15.6 | 5.4 | 9.4 | 1.6 |
| Feb | 9° / 5° | 98 | 13.6 | 5.2 | 10.4 | 1.6 |
| Mar | 11° / 6° | 119 | 15.8 | 3.3 | 11.7 | 2.4 |
| Apr | 14° / 9° | 106 | 14.2 | 0.2 | 13.1 | 3.9 |
| May | 18° / 14° | 110 | 13.8 | 0 | 14.3 | 5.5 |
| Jun | 22° / 18° | 99 | 12.4 | 0 | 14.9 | 6.5 |
| Jul | 25° / 21° | 82 | 12.1 | 0 | 14.6 | 6.8 |
| Aug | 25° / 21° | 102 | 13.8 | 0 | 13.6 | 6.4 |
| Sep | 23° / 18° | 176 | 14.6 | 0 | 12.3 | 6.1 |
| Oct | 19° / 15° | 213 | 16.2 | 0 | 10.9 | 5.4 |
| Nov | 15° / 11° | 149 | 12.8 | 0.5 | 9.7 | 4.3 |
| Dec | 11° / 7° | 131 | 14.7 | 2.4 | 9.1 | 2.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
Giresun gets around 283 mm of rain over 38 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 42 min in early June to 13 hours 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 5.9 kWh/m².
Is summer a good time to visit Giresun?
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 a reasonable time to visit Giresun for sightseeing.
What to pack for Giresun in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Giresun sees daytime highs around 24°C and nights near 20°C. Pack sun protection. Worth having: light clothes and rain gear. About 38 days see rain.
Sea temperature near Giresun in Summer
The nearest coast averages about 24°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 23 km away) is warmest in August at about 25°C and coldest in February near 8°C.
It's comfortable for a long swim from Jun 10 to Oct 15 — about 4.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 8 | 8 | 11 | 16 | 21 | 24 | 25 | 24 | 20 | 16 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 11 | Bracing |
| May | 16 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Warm |
| Aug | 25 | Warm |
| Sep | 24 | Refreshing |
| Oct | 20 | Cool |
| Nov | 16 | Cool |
| Dec | 12 | Bracing |
UV index in Giresun 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 Giresun peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 2 (low).
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 | 3 | 7 | 7 | 9 | 9 | 9 | 7 | 4 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 3 | Moderate |
| Apr | 7 | High |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Giresun 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 Giresun is worst in March — around 32 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 16 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Giresun's WHO annual average of 21.8 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 18 | 25 | 32 | 31 | 24 | 19 | 20 | 21 | 18 | 19 | 18 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 25 | Moderate |
| Mar | 32 | Moderate |
| Apr | 31 | Moderate |
| May | 24 | Moderate |
| Jun | 19 | Moderate |
| Jul | 20 | Moderate |
| Aug | 21 | Moderate |
| Sep | 18 | Moderate |
| Oct | 19 | Moderate |
| Nov | 18 | Moderate |
| Dec | 16 | Moderate |
Where is Giresun?
Giresun sits at 40.9°N, 38.4°E, 39 m above sea level, in Turkey. The nearest listed city is Bulancak, 13 km away.
Topography around Giresun
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Giresun.
Within 3 km, the terrain around Giresun has significant variations in elevation — a maximum elevation change of 508 m around an average of 76 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,205 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,262 m.
The land around Giresun is covered by water (54%) and trees (32%) within 3 km, trees (51%) and water (47%) within 16 km, and trees (45%), water (31%) and grassland (22%) 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 Giresun (40.917°, 38.3874°, elevation 39 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.