Vienna or Prague in May?
On climate data, Vienna comes out ahead overall in May. See the per-criterion details below.
ViennaPhoto: Ninanuri · CC BY 2.5
PraguePhoto: Lucas Garron · CC0Key figures in May
| Criterion | Vienna | Prague |
|---|---|---|
| Day | 20 °C ★ | 19 °C |
| Night | 9 °C ★ | 8 °C |
| Rainy days | 9 rainy days ★ | 10 rainy days |
| Sun | 7 h/day ★ | 6 h/day |
Winner by travel type
Vienna or Prague in May: the short answer
In May, Vienna comes out ahead on the overall climate score (Vienna 74/100 vs Prague 69/100). That is a snapshot of one month, though — which one truly fits depends on what you want from the trip, so the breakdown below goes criterion by criterion.
Across the whole year Vienna averages a climate score of 59/100, Prague 56/100. Both profiles below are historical monthly averages, not a forecast.
Weather in May, side by side
By day, Vienna sits near 20 °C and Prague near 19 °C — warmer in Vienna. At night it is roughly 9 °C versus 8 °C.
On rain, Vienna sees about 9 rainy days in May and Prague about 10 — drier in Vienna. Vienna gets more sunshine (7 vs 6 hours a day).
Rain and sun across the year
Over a full year Vienna records roughly 96 rainy days and Prague about 105 — the drier of the two overall is Vienna. At their sunniest, Vienna reaches about 7 hours of sun a day (June) and Prague about 7 (June). If dependable dry, sunny weather is your top priority, weigh these annual totals alongside the single month above.
Best time to visit each
Climatically, Vienna is at its best in June, July, August and September, while Prague peaks in June, July, August and September. If your dates are fixed, pick the destination whose strong season overlaps them; if you are flexible, plan around these windows.
Which suits which kind of trip
Based on the May scores for each travel style:
City breaks: Vienna scores higher in May.
Active & hiking: Vienna scores higher in May.
Family: Vienna scores higher in May.
Verdict: which should you pick?
There is no single winner — it depends on your month and your priority. For May specifically, use the head-to-head above; over the year, Vienna carries the slightly higher overall climate score. Choose Vienna if its strong months and profile match your plan, Prague if its do. The month-by-month pages for each destination give you the full picture before you book.