Temperature
Pleasant by day, brisk at night.
71°Ftypical May high
Typical range
May climate
May in Piran
Slovenia · Slovenian Littoral
Mild days and plenty of sun.
One of the best months here
Daytime high
71°F
Lows around 59°F
Rain
Several rainy days
Sun
12 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 13 wet days, the highest monthly average.
41%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
12 hMay sunshine
Heat & humidity by month
ComfortableMay
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In May, afternoons feel about 68° and nights feel near 58°.
Very coldColdCoolComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
45%May Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in May.
6 mphMay Calm
More detailIncludes daypart comfort
Typical May day
May late afternoons are around 70°F, easing to about 68°F in early evening.
Avg temp Typical range
Morning65°F
Rain20%
Cloud52%
Humid airLow
Sun intensityModerate
Best windowMidday70°F
Rain24%
Cloud55%
Humid airLow
Sun intensityStrong
Late afternoon70°F
Rain23%
Cloud55%
Humid airLow
Sun intensityStrong
Early evening68°F
Rain18%
Cloud54%
Humid airLow
Sun intensityLow
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 48 | 39 | 3.4 | 10 | 5.9 | 75 | 55 |
| Feb | 50 | 40 | 3.4 | 9 | 7.4 | 72 | 53 |
| Mar | 56 | 44 | 3.5 | 10 | 9.2 | 69 | 53 |
| Apr | 63 | 51 | 3.8 | 11 | 10.7 | 70 | 57 |
| May | 71 | 59 | 4.2 | 13 | 12.0 | 71 | 65 |
| Jun | 79 | 67 | 3.0 | 9 | 13.1 | 69 | 73 |
| Jul | 83 | 70 | 2.7 | 8 | 13.4 | 66 | 77 |
| Aug | 83 | 70 | 3.6 | 9 | 12.4 | 68 | 78 |
| Sep | 75 | 63 | 6.0 | 10 | 10.2 | 72 | 74 |
| Oct | 66 | 56 | 5.7 | 12 | 8.1 | 76 | 68 |
| Nov | 57 | 48 | 6.5 | 13 | 6.2 | 77 | 64 |
| Dec | 50 | 41 | 4.3 | 10 | 5.5 | 76 | 59 |
Similar climates
Similar
Similar climateBarcelonaSpainSimilar climateCefaluItalySimilar climateIstanbulTurkeySimilar climatePalermoItaly
Want a side-by-side climate view? Compare Piran with Barcelona.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 22, 2026
Data & methodology