Weather by month for Zagreb, the best months to go and how Croatia's regions differ, scored from 10 years of climate data.
Apr, Jun, Sep, Oct
The highest month scores: comfortable temperatures, little rain and plenty of sun.
Highs 17°C to 26°C · 9–11 rain days
May, Jul, Aug
Still good weather, just not quite the top months.
Highs 21°C to 28°C · 9–15 rain days
Jan, Dec
The weakest weather of the year: too hot, too cold or too wet.
Highs 5°C to 6°C · 9–10 rain days
Weather by month
Average highs and lows, rain days, sunshine and our month score out of 10.
| Month | High / low | Rain days | Sunshine | Score |
|---|---|---|---|---|
| January | 5°C / -2°C | 10 days (63 mm) | 5.3 h/day | 2.6/10 |
| February | 9°C / 0°C | 8 days (64 mm) | 6.6 h/day | 4.0/10 |
| March | 13°C / 2°C | 9 days (56 mm) | 8.5 h/day | 5.7/10 |
| Best month: April | 17°C / 6°C | 9 days (62 mm) | 10.0 h/day | 7.8/10 |
| May | 21°C / 11°C | 15 days (117 mm) | 10.4 h/day | 7.4/10 |
| Best month: June | 26°C / 16°C | 11 days (82 mm) | 12.3 h/day | 7.9/10 |
| July | 28°C / 18°C | 9 days (81 mm) | 12.6 h/day | 7.7/10 |
| August | 28°C / 18°C | 9 days (76 mm) | 11.9 h/day | 7.8/10 |
| Best month: September | 22°C / 13°C | 10 days (95 mm) | 9.5 h/day | 8.4/10 |
| Best month: October | 17°C / 9°C | 9 days (87 mm) | 7.5 h/day | 8.0/10 |
| November | 11°C / 4°C | 9 days (87 mm) | 5.1 h/day | 4.7/10 |
| December | 6°C / 0°C | 9 days (62 mm) | 4.9 h/day | 3.1/10 |
Figures for Zagreb; the country's best months are weighted across its cities. Best months are highlighted. How we score months
Month by month
5°C / -2°C · 10 rain days · 5.3 h sun
January is the coldest month in Zagreb, with highs of 5.3°C and lows of -2°C, so nights fall below freezing. Expect about 10 rain days and only 5.3 hours of sunshine. It has the lowest score of the year, 2.6, because of the cold and grey skies. It still works for travellers who are happy with a chilly winter city trip.
9°C / 0°C · 8 rain days · 6.6 h sun
February stays cold but starts to improve, with highs of 8.9°C and lows near 0°C in Zagreb. Rain falls on about 8 days, the fewest of the winter months, and sunshine rises to 6.6 hours. With a score of 4, it rates as an ok month. Pack warm layers for the cold nights.
13°C / 2°C · 9 rain days · 8.5 h sun
March brings milder days in Zagreb, with highs of 12.5°C, but nights are still cool at 2.1°C. Expect about 9 rain days and 8.5 hours of sunshine. It scores 5.7, an ok month that sits between winter and the better spring weather. A warm jacket is still useful in the evenings.
17°C / 6°C · 9 rain days · 10.0 h sun
April is one of the best months, with a score of 7.8. Highs reach 16.8°C in Zagreb and lows are around 6°C. Rain falls on about 9 days, and sunshine climbs to 10 hours. It is a comfortable month for walking and sightseeing before the summer heat arrives.
21°C / 11°C · 15 rain days · 10.4 h sun
May is warm, with highs of 20.6°C and lows of 11°C in Zagreb. It is also the wettest month: rain falls on about 15 days and totals 117 mm, often in showers. Even so, there are 10.4 hours of sunshine, and the month scores a good 7.4. Bring a light rain jacket.
26°C / 16°C · 11 rain days · 12.3 h sun
June scores 7.9 and rates as one of the best months. Highs reach 26.2°C in Zagreb, with mild nights around 16°C. Rain falls on about 10 days, but sunshine is long at 12.3 hours. It is warm summer weather without the peak heat of July.
28°C / 18°C · 9 rain days · 12.6 h sun
July is the hottest month in Zagreb, with highs of 28.4°C and warm nights of 18°C. It also has the most sunshine, at 12.6 hours, and about 9 rain days. It scores 7.7, one of the best months. Plan outdoor sightseeing for the morning or evening on the hottest days.
28°C / 18°C · 9 rain days · 11.9 h sun
August is almost as hot as July, with highs of 28°C and lows of 17.8°C in Zagreb. Rain falls on about 9 days and sunshine is long at 11.9 hours. With a score of 7.8, it is one of the best months for warm, settled summer weather.
22°C / 13°C · 10 rain days · 9.5 h sun
September has the top score of the year, 8.4. Highs ease to 22.4°C in Zagreb, with lows around 13°C, so days are warm but not hot. Rain falls on about 10 days and totals 95 mm. There are still 9.5 hours of sunshine for outdoor plans.
17°C / 9°C · 9 rain days · 7.5 h sun
October scores 8, still one of the best months. Highs are a mild 17.1°C in Zagreb and lows drop to 8.6°C. Rain falls on about 9 days, and sunshine shortens to 7.5 hours. Bring a jacket for the cooler evenings.
11°C / 4°C · 9 rain days · 5.1 h sun
November turns cool and grey, with highs of 10.5°C and lows of 3.7°C in Zagreb. Rain falls on about 9 days and totals 87 mm, while sunshine drops to 5.1 hours. It scores 4.7, an ok month for travellers who don't mind damp, short days.
6°C / 0°C · 9 rain days · 4.9 h sun
December is cold, with highs of 6.3°C and nights just below freezing in Zagreb. It has the least sunshine of the year, only 4.9 hours, and about 9 rain days. Its score of 3.1 is the second lowest of the year, because of the cold and dark days. Warm clothes make a winter city trip comfortable.
Regional differences
Average daytime high each month, coloured by that city's own month score.
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zagreb | 5°C | 9°C | 13°C | 17°C | 21°C | 26°C | 28°C | 28°C | 22°C | 17°C | 11°C | 6°C |
| Split | 11°C | 13°C | 15°C | 18°C | 22°C | 28°C | 31°C | 31°C | 26°C | 21°C | 16°C | 13°C |
| Rijeka | 9°C | 11°C | 13°C | 17°C | 21°C | 26°C | 29°C | 29°C | 23°C | 19°C | 14°C | 11°C |
| Osijek | 5°C | 10°C | 13°C | 18°C | 22°C | 27°C | 29°C | 29°C | 24°C | 18°C | 12°C | 7°C |
| Zadar | 10°C | 12°C | 14°C | 17°C | 21°C | 27°C | 30°C | 30°C | 25°C | 20°C | 15°C | 12°C |
Best Good OK Tough weather
By trip type
City sightseeing
September, October, April and June suit city breaks. In Zagreb, highs reach about 17°C in April and October and 22°C in September, which is comfortable for long walks. June is warmer at 26°C, with 12.3 hours of sun.
Beach
July and August are the warmest months, with Zagreb highs of about 28°C and around 12 hours of sun. June is close behind at 26°C. September is milder at 22°C, with 9.5 sun hours.
Hiking & nature
April, September and October bring mild highs of 17–22°C in Zagreb, so long climbs feel easier than in summer heat. Each has about 9–10 rain days, fewer than the 15 in May.
Events calendar
Public holidays: New Year's Day (1 Jan), Epiphany (6 Jan)
Public holidays: Easter Sunday (5 Apr), Easter Monday (6 Apr)
Public holidays: International Workers' Day (1 May), National Day (30 May)
Public holidays: Corpus Christi (4 Jun), Anti-Fascist Struggle Day (22 Jun)
Public holidays: Victory and Homeland Thanksgiving Day and the Day of Croatian defenders (5 Aug), Assumption Day (15 Aug)
Public holidays: All Saints' Day (1 Nov), Remembrance Day (18 Nov)
Public holidays: Christmas Day (25 Dec), St. Stephen's Day (26 Dec)
Keep planning
FAQ
Yes. September gets our highest score of the year, 8.4. In Zagreb, days reach about 22.4°C and nights drop to about 13.1°C, so it is warm without the peak summer heat. You still get about 9.5 hours of sun a day. Pack a light rain jacket: September brings 95 mm of rain over about 10 rain days. These figures are for Zagreb, inland.
Yes, August is one of the best months, with a score of 7.8. It is hot and sunny. Zagreb highs average 28°C, nights stay near 17.8°C, and you get about 11.9 hours of sun a day. Rain is moderate, with about 9 rain days and 76 mm. Only July is slightly warmer, at 28.4°C. Data is for Zagreb.
Yes, May is the wettest month in the Zagreb data. It has about 15 rain days and 117 mm of rain. It still scores 7.4 because it is mild, with highs of about 20.6°C and lows of 11°C, and it gets about 10.4 hours of sun a day. Expect showers, but also many pleasant spring days.
January is the coldest month, and it has the lowest score, 2.6. In Zagreb, days reach about 5.3°C and nights fall to about -2°C. There are only about 5.3 hours of sun a day and around 10 rain days. Bring warm layers for a winter city trip. These figures are for Zagreb, inland.
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