Zagreb in May

In May, Zagreb averages 21°C (69°F) during the day and 11°C (52°F) at night, with frequent rain — about 23 days of the month see precipitation (113 mm total).

Shoulder

Conditions are comfortable for sightseeing without being sweltering. Expect daily rain or showers, often in heavy bursts.

May offers comfortable temperatures in Zagreb, with some rain to plan around.

21°C
Avg high
11°C
Avg low
23
Rain days
113 mm
Rainfall

How May compares to the rest of the year in Zagreb

5th
warmest month of the 12
1st
wettest month of the 12
12%
of yearly rainfall falls in May
14 h 55 min
daylight on the 15th

May is in the middle of the year for warmth in Zagreb (5th of 12) and one of the wettest months (1st of 12). Daytime temperature runs 4°C above the annual average (17°C). May runs 4°C warmer than April (17°C) and warms a further 6°C into June (26°C).

May sunrise & sunset in Zagreb

🌅
Sunrise (15th)
5:25 AM
🌇
Sunset (15th)
8:20 PM
Day length
14 h 55 min

Times shown for Zagreb local time (Europe/Zagreb), calculated for the 15th of May. They shift by a few minutes day to day across the month.

Photography light in Zagreb — May

Golden-hour and blue-hour windows for the 15th of May, in Zagreb's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
4:25 AM – 5:05 AM
🌄 Golden hour (AM)
5:05 AM – 6:05 AM
🌇 Golden hour (PM)
7:40 PM – 8:40 PM
🌆 Blue hour (PM)
8:40 PM – 9:20 PM
Milky Way galactic core
Good
Galactic core is up but lower on the horizon; head well outside city limits for a clean view.

📅 When to book — Zagreb in May

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on May's tier (Shoulder) and Zagreb's popularity.

✈ Flights — lead time
6-10 weeks
Sweet spot for value. Major fare-sales (US: Black Friday, EU: post-Easter) hit hardest in shoulder months for shoulder travel.
🏨 Lodging — lead time
4-8 weeks
Lots of selection. Look for shoulder-season packages — many hotels add value (free breakfast, spa credit) to fill rooms.

Crowds & pricing — May in Zagreb

Shoulder

Zagreb is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.

Why this tier: comfortable tourism weather

Sun & mosquito risk — May in Zagreb

☀️ UV Index (noon, 15th)
11.2
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●○
High
Peak mosquito activity. DEET 30%+, long sleeves at dawn/dusk, sleep under nets if rural.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Zagreb in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 6°C / 42°F -2°C / 29°F 64 mm 17
February 9°C / 47°F 0°C / 32°F 75 mm 14
March 13°C / 55°F 2°C / 36°F 47 mm 14
April 17°C / 62°F 6°C / 44°F 69 mm 16
May 21°C / 69°F 11°C / 52°F 113 mm 23
June 26°C / 79°F 16°C / 61°F 81 mm 17
July 28°C / 82°F 18°C / 64°F 86 mm 17
August 27°C / 81°F 17°C / 63°F 80 mm 15
September 22°C / 72°F 13°C / 55°F 102 mm 15
October 17°C / 63°F 9°C / 47°F 89 mm 12
November 11°C / 51°F 4°C / 39°F 86 mm 15
December 6°C / 44°F 0°C / 32°F 64 mm 13

Other cities with similar May weather

🌍 See the full ranked list of climate twins for Zagreb in May →

Frequently asked questions

How hot is Zagreb in May?

In May, Zagreb averages a high of 21°C (69°F) and a low of 11°C (52°F) — generally mild and pleasant.

Does it rain a lot in Zagreb in May?

May is quite rainy in Zagreb, with about 23 rainy days on average.

Is May a good time to visit Zagreb?

May is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Zagreb in May?

Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full May packing list for Zagreb for a complete, climate-based checklist.

Open Zagreb on the interactive map

Check the live 10-day forecast and sunrise/sunset.