Ioánnina weather in May

In May, Ioánnina sees average daytime highs of 20°C and overnight lows near 9°C, with 78 mm of rain across 11 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 38% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 36 min by month's end. Set against the rest of the year, May is Ioánnina's 6th-clearest and 7th-windiest month. For the whole year in context, see Ioánnina's year-round climate.

Daytime high
20°
5th warmest
Overnight low
8th coldest
Rainfall
78 mm
11 wet days
Daylight
14 h 12 min
5:28 AM – 7:38 PM
Cloud cover
50%
6th clearest
Wind
6 km/h
7th windiest
Solar energy
6.21 kWh/m²
Travel score
6.4
out of 10

Ioánnina is capital and largest city of Ioannina and Epirus, Greece.

Air quality
Elevated
PM2.5 19.7 µg/m³ · 2019
Density
163/km²
people per km²
Founded
~879 CE

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 22°C by the end.

A typical May day in Ioánnina reaches about 20°C in the afternoon and slips back to 9°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1187
2187
3197
4198
5198
6198
7198
8198
9208
10208
11208
12209
13209
14209
15209
16209
17209
18219
19219
20219
212110
222110
232110
242110
252110
262110
272210
282210
292210
302210
312211

How May really feels in Ioánnina

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May 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 May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°12911.13.59.51.0
Feb / -1°13211.64.210.41.4
Mar12° / 12412.42.311.72.9
Apr16° / 9712.70.2134.5
May20° / 7811014.26.4
Jun25° / 13°387.3014.77.6
Jul28° / 15°255014.57.5
Aug28° / 15°214.4013.67.2
Sep24° / 12°807.3012.37.6
Oct19° / 1248.90.110.96.3
Nov13° / 178120.89.83.5
Dec / 17313.22.69.21.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35545
45545
55644
65644
75743
85743
95842
105941
115941
125941
135941
145941
156040
166040
176139
186139
196238
206238
216238
226436
236535
246535
256634
266733
276832
286832
296931
306931
317129

Chance of precipitation in May

Any precipitation

Ioánnina gets around 78 mm of rain over 11 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
340
439
539
639
739
838
938
1038
1137
1237
1336
1436
1536
1635
1735
1835
1935
2034
2134
2234
2334
2433
2533
2633
2733
2833
2932
3032
3132

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79820
89820
99820
109820
119820
129730
139730
149730
159730
169640
179640
189550
199550
209460
219370
229280
239190
2490100
2589110
2688120
2787130
2886140
2985150
3084160
3182171

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:44 AM to 5:17 AM, and sunset from 7:23 PM to 7:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:447:23
213.75:437:24
313.75:427:25
413.85:407:26
513.85:397:27
613.85:387:28
713.95:377:29
813.95:367:30
913.95:357:31
1014.05:347:32
1114.05:337:33
1214.05:317:34
1314.15:307:35
1414.15:297:36
1514.15:287:37
1614.25:287:38
1714.25:277:39
1814.25:267:40
1914.35:257:41
2014.35:247:42
2114.35:237:43
2214.45:227:44
2314.45:227:45
2414.45:217:45
2514.45:207:46
2614.55:207:47
2714.55:197:48
2814.55:187:49
2914.55:187:50
3014.55:177:50
3114.65:177:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.21 kWh/m².

For context, solar energy here swings from a low near 1.72 kWh/m² to a high of 6.99 kWh/m² in June across the year — May's 6.21 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.4Intense
246.4Intense
256.4Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.6Intense
316.6Intense
Planning a trip in May

Hazard calendar for Ioánnina

In seasonPeak

None of Ioánnina's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Ioánnina's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Ioánnina?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
5th-best month of the year
3.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Ioánnina for sightseeing.

What to pack for Ioánnina in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Ioánnina sees daytime highs around 20°C and nights near 9°C. Pack sun protection. Worth having: rain gear. About 11 days see rain.

sun protectionrain gear

Sea temperature near Ioánnina in May

The nearest coast averages about 19°C in May — 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.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov20Cool
Dec17Cool

UV index in Ioánnina in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 23UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr7Very high
May7Very high
Jun10Very high
Jul9Very high
Aug10Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Ioánnina in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1725 µg/m³Dec 1116 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar23Moderate
Apr25Moderate
May24Moderate
Jun20Moderate
Jul19Moderate
Aug20Moderate
Sep17Moderate
Oct17Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

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.

ÁrtaKalambakaSarandeGjirokastërPrévezaTríkalaCorfu

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.

3 km
177 m
16 km
1,476 m
80 km
2,590 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Zagorochoria 24 km · Árta 57 km · Kalambaka 66 km · Sarande 76 km · Gjirokastër 76 km · Préveza 79 km · Tríkala 79 km · Corfu 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
other 3%Muslim 2%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).