Ioánnina in Summer
In summer (June, July and August), Ioánnina sees average daytime highs around 27°C and overnight lows near 14°C, with 84 mm of rain over about 17 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 23°C in early June to 27°C by late August. The sky is clear or mostly clear about 74% of the time across summer, and the air most often feels comfortable.
Summer is Ioánnina's best season of the year to visit on our travel score. For the whole year in context, see Ioánnina's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 84 mm
- 17 wet days
- Avg wind
- 6 km/h
- Travel score
- 7.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Ioánnina in Summer
Over the season highs climb from about 23°C in early June to 27°C by late August.
A typical summer day in Ioánnina reaches about 27°C and drops to 14°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Ioánnina
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ioánnina 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 | 7° / -1° | 129 | 11.1 | 3.5 | 9.5 | 1.0 |
| Feb | 8° / -1° | 132 | 11.6 | 4.2 | 10.4 | 1.4 |
| Mar | 12° / 2° | 124 | 12.4 | 2.3 | 11.7 | 2.9 |
| Apr | 16° / 5° | 97 | 12.7 | 0.2 | 13 | 4.5 |
| May | 20° / 9° | 78 | 11 | 0 | 14.2 | 6.4 |
| Jun | 25° / 13° | 38 | 7.3 | 0 | 14.7 | 7.6 |
| Jul | 28° / 15° | 25 | 5 | 0 | 14.5 | 7.5 |
| Aug | 28° / 15° | 21 | 4.4 | 0 | 13.6 | 7.2 |
| Sep | 24° / 12° | 80 | 7.3 | 0 | 12.3 | 7.6 |
| Oct | 19° / 8° | 124 | 8.9 | 0.1 | 10.9 | 6.3 |
| Nov | 13° / 4° | 178 | 12 | 0.8 | 9.8 | 3.5 |
| Dec | 8° / 0° | 173 | 13.2 | 2.6 | 9.2 | 1.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 74% of the time across summer.
Chance of precipitation in Summer
Ioánnina gets around 84 mm of rain over 17 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 36 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 6.7 kWh/m².
Hazard calendar for Ioánnina
None of Ioánnina's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Ioánnina's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit Ioánnina?
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 Ioánnina for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ioánnina in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ioánnina sees daytime highs around 27°C and nights near 14°C. Pack light clothes and sun protection. About 17 days see rain.
Sea temperature near Ioánnina 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 62 km away) is warmest in August at about 26°C and coldest in February near 15°C.
It's comfortable for a long swim from May 26 to Nov 12 — about 5.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 15 | 16 | 19 | 22 | 24 | 26 | 25 | 22 | 20 | 17 |
| Comfort | Cool | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Bracing |
| Apr | 16 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 20 | Cool |
| Dec | 17 | Cool |
UV index in Ioánnina 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 Ioánnina peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 7 | 10 | 9 | 10 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 7 | Very high |
| May | 7 | Very high |
| Jun | 10 | Very high |
| Jul | 9 | Very high |
| Aug | 10 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Ioánnina 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 Ioánnina is worst in April — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Seasonal pattern from CAMS reanalysis, scaled to Ioánnina's WHO annual average of 19.7 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 20 | 23 | 25 | 24 | 20 | 19 | 20 | 17 | 17 | 16 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 20 | Moderate |
| Mar | 23 | Moderate |
| Apr | 25 | Moderate |
| May | 24 | Moderate |
| Jun | 20 | Moderate |
| Jul | 19 | Moderate |
| Aug | 20 | Moderate |
| Sep | 17 | Moderate |
| Oct | 17 | Moderate |
| Nov | 16 | Moderate |
| Dec | 16 | Moderate |
Where is Ioánnina?
Ioánnina sits at 39.7°N, 20.9°E, 468 m above sea level, in Greece. The nearest listed city is Zagorochoria, 24 km away.
Topography around Ioánnina
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ioánnina.
Within 3 km, the terrain around Ioánnina has only modest variations in elevation — a maximum elevation change of 177 m around an average of 490 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,476 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,590 m.
The land around Ioánnina is covered by water (32%), artificial surfaces (28%) and trees (21%) within 3 km, trees (63%) and grassland (27%) within 16 km, and trees (62%) within 80 km.
Greece travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $26,948
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.8
- per 100k, 2023
- Road deaths
- 8.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- High
- EF EPI 592
- 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 Ioánnina (39.6634°, 20.8519°, elevation 468 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.