Weather in Ioánnina in May
Greece · 20-year averages, May
Prime time. May is about as good as Ioánnina gets. Highs average 22.2 °C, lows 12.5 °C, and rain falls on 8 days — nothing in the month is working against you.
May is the highest-scoring month of the twelve. The nearest rival is June, and the month at the other end of the year is January.
Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average May reaches 30 °C. Across the twenty years measured, the hottest May day reached 33.1 °C and the coldest night fell to 5.6 °C, and the wettest single day dropped 57 mm — roughly 124% of the month's rain in one day.
May is moderately variable: 14 mm in the driest year against 110 mm in the wettest, around an average of 46 mm. Roughly two Mays in three land near that average, and the third does something else entirely.
Wind is light at 6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 68%.
How May sits in the year
The month is on the way up: 4.7 °C warmer than April, and June adds another 6 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in May
14.3 hours of daylight, gaining 0.9 hours across the month. That is between Ioánnina's extremes of 15 and 9.4 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 30.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
May in Ioánnina versus nearby
If Ioánnina is one option among several, the nearby comparison is worth making. Lárisa is close enough to be a coin toss — 5.1 °C warmer, 1 day less rain. Pátra is close enough to be a coin toss — 4 °C warmer, 2 days less rain.
So: May is the answer for Ioánnina. If it is booked out or priced out, June is the next best thing at 1 points behind, and January is the month to keep off the shortlist.
Every month in Ioánnina
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 9.3 | 2.4 | 13 | 121 | 82 | 9.7 | 38 |
| February | 10.3 | 3 | 12 | 102 | 81 | 10.7 | 46 |
| March | 13.7 | 5.2 | 11 | 86 | 78 | 11.9 | 58 |
| April | 17.5 | 8.1 | 8 | 53 | 73 | 13.2 | 76 |
| May | 22.2 | 12.5 | 8 | 46 | 68 | 14.3 | 86 |
| June | 28.2 | 17.1 | 6 | 28 | 57 | 15 | 85 |
| July | 32.5 | 20.2 | 3 | 16 | 47 | 14.7 | 70 |
| August | 32.7 | 20.6 | 4 | 25 | 47 | 13.8 | 68 |
| September | 26.7 | 16.4 | 8 | 84 | 60 | 12.5 | 84 |
| October | 21.2 | 11.9 | 9 | 111 | 72 | 11.2 | 80 |
| November | 15.6 | 7.9 | 12 | 138 | 79 | 10 | 60 |
| December | 10.7 | 3.9 | 13 | 153 | 82 | 9.4 | 42 |
See all twelve months in Ioánnina, or where else to go in May.
Planning the rest of the trip
- Flight time to Ioánnina how long you are actually in the air
- Ioánnina time zone and the difference from home
- Days until your trip count down to the departure date