May · Italy
Best time to visit Trieste in May Weather, crowds & prices
Weather in Trieste in May
Average temperature 17°C, 127 mm of rain, about 24 days with 6+ hours of sunshine and 76% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
7.6/10
Ranked #4 of 12 months
- Avg temp
- 17°C
- Rainfall
- 127 mm
- Humidity
- 76%
- Days with 6h+ sun
- 24
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Trieste scores 7.6/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 17°C, 127 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Trieste faces the Adriatic with Habsburg cafés, a grand piazza on the water, and a Mitteleuropean literary past. Best window: April-June and September-October.
May in Trieste: strong conditions, 4th of 12
May averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 127 mm — wet for this destination — but about 24 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.6/10 here, 4th of 12 months, against 8.6/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Trieste in May?
- In May, Trieste averages 17°C, 127 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is May a good time to visit Trieste?
- May earns a 7.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Trieste in May?
- Expect about 127 mm of rain in May. Average humidity is 76% and there are about 24 days with 6+ hours of sunshine.
Curated in Trieste
Tickets & experiences
Things to do in Trieste
Trieste, Italy. Live activities and tours from GetYourGuide, matched to this destination.