Weather in Zagreb in September
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youIn September, Zagreb sees average highs of 23.0°C (73.4°F) and lows of 13.1°C. Conditions are warm and fairly wet (7 rainy days on average), with roughly 10.0 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Zagreb — every month compared. Once you know when to go, find your Zagreb packing list at 247PackingList.
Get ready for Zagreb in September
Search flights to Zagreb
Compare 100+ airlines for September — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Zagreb in September
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
Compare all months in Zagreb
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 6.1°C | 65.2mm | 10/10 |
| February | 10.0°C | 41.1mm | 10/10 |
| March | 12.2°C | 43.3mm | 10/10 |
| April | 15.4°C | 67.8mm | 10/10 |
| May | 20.4°C | 104.1mm | 9/10 |
| June | 26.2°C | 70.0mm | 10/10 |
| July | 28.0°C | 94.0mm | 10/10 |
| August | 27.1°C | 90.0mm | 10/10 |
| September | 23.0°C | 80.4mm | 10/10 |
| October | 17.5°C | 82.6mm | 10/10 |
| November | 10.0°C | 81.1mm | 10/10 |
| December | 6.5°C | 84.9mm | 10/10 |
Full month-by-month guide: best time to visit Zagreb →
For facts about Croatia — currency, language and dialling code — see our Croatia country guide at 247CountryInfo. Travellers also find it useful to keep a Zagreb travel guide to hand. Check clothing sizes in Croatia before you shop.
Frequently Asked Questions
Is September a good time to visit Zagreb?
September rates 10/10 for visiting Zagreb — excellent time to visit. Expect average highs of 23.0°C, 80.4mm of rain across the month and about 10.0 hours of daily sunshine.
What is the temperature in Zagreb in September?
In September, Zagreb has average highs of 23.0°C (73.4°F) and average lows of 13.1°C (55.6°F).
Does it rain in Zagreb in September?
Some rain is likely. Zagreb averages 80.4mm across about 7 rainy days in September, so a light waterproof layer is worth packing.
What should I wear in Zagreb in September?
For Zagreb in September (23.0°C highs / 13.1°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, light waterproof layer.
More essentials for Zagreb in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.