| Green - No warnings |
| Yellow - The weather is potentially dangerous |
| Orange - The weather is dangerous |
| Red - The weather is very dangerous |
| Marine forecast warning |
| Heat wave warning |
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| Region | Awareness type | Hours | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 24 | More | |||||||||||||||||
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| Osijek region | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 10:00:00 until 20.08.2026 18:00:00 | Awareness Level: Yellow Hot day. Maximum temperature > 35 °C STAY ALERT for expected high temperatures. Health risks are possible in the vulnerable population, in particular senior citizens and small children. | |||||||||||||||||||||||||||||
| Zagreb region | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 20:00:00 until 20.08.2026 23:59:59 | Awareness Level: Yellow Locally possible isolated severe thundershowers in the area next to the border with Slovenia. Lightning risk > 50 % STAY ALERT for possible heavy thunderstorms. Be especially careful in high-exposure areas such as mountains, forests, meadows and open grounds. Interruptions in outdoor activities are possible. | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 10:00:00 until 20.08.2026 18:00:00 | Awareness Level: Yellow Hot day. Maximum temperature > 34 °C STAY ALERT for expected high temperatures. Health risks are possible in the vulnerable population, in particular senior citizens and small children. | |||||||||||||||||||||||||||||
| Karlovac region | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 10:00:00 until 20.08.2026 18:00:00 | Awareness Level: Yellow Hot day. Maximum temperature > 34 °C STAY ALERT for expected high temperatures. Health risks are possible in the vulnerable population, in particular senior citizens and small children. | |||||||||||||||||||||||||||||
| Gospić region | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 18:00:00 until 20.08.2026 23:59:59 | Awareness Level: Yellow Locally in Gorski kotar possible severe thundershowers with strong and gale force wind gusts. Locally possible urban and flash floods. Maximum gust speed > 65 km/h; Lightning risk > 60 % STAY ALERT for possible heavy thunderstorms. Be especially careful in high-exposure areas such as mountains, forests, meadows and open grounds. Interruptions in outdoor activities are possible. | |||||||||||||||||||||||||||||
| Rijeka region | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 18:00:00 until 20.08.2026 23:59:59 | Awareness Level: Yellow Locally possible severe thundershowers accompanied. A moderate and strong jugo (SE) and S wind, suddenly turning to N and NW, with strong to gale force gusts. Locally possible urban and flash floods. Maximum gust speed > 65 km/h; Lightning risk > 60 % STAY ALERT for possible heavy thunderstorms. Be especially careful in high-exposure areas such as mountains, forests, meadows and open grounds. Interruptions in outdoor activities are possible. | |||||||||||||||||||||||||||||
| Dubrovnik region | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 00:00:00 until 20.08.2026 23:59:59 | Awareness Level: Yellow Heat wave. Maximum temperature > 32 °C STAY ALERT for expected high temperatures. Health risks are possible in the vulnerable population, in particular senior citizens and small children. | |||||||||||||||||||||||||||||
| Knin region | |||||||||||||||||||||||||||||
| Split region | |||||||||||||||||||||||||||||
| Coastal wind warnings for Croatian Adriatic climate regions | |||||||||||||||||||||||||||||
| West Istrian coast | |||||||||||||||||||||||||||||
| Kvarner i Kvarneric | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 20:00:00 until 20.08.2026 23:59:59 | Awareness Level: Yellow Locally strong SE wind. Maximum wind gusts 35-40 knots (65-75 km/h) IMPACT: Although rather usual in this region, locally or potentially dangerous wind speeds are expected to produce dangerous wave conditions to small crafts. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. Mariners should pay close attention to the marine forecast and consider wind and sea conditions in planning. It is possible that some ferry lines will not operate so follow traffic information if travelling. | |||||||||||||||||||||||||||||
| Velebit channel | |||||||||||||||||||||||||||||
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Valid from 20.08.2026 20:00:00 until 20.08.2026 23:59:59 | Awareness Level: Yellow Locally strong SE wind. Maximum wind gusts 35-40 knot (65-75 km/h) IMPACT: Although rather usual in this region, locally or potentially dangerous wind speeds are expected to produce dangerous wave conditions to small crafts. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. Mariners should pay close attention to the marine forecast and consider wind and sea conditions in planning. It is possible that some ferry lines will not operate so follow traffic information if travelling. | |||||||||||||||||||||||||||||
| North Dalmatia region | |||||||||||||||||||||||||||||
| Middle Dalmatia region | |||||||||||||||||||||||||||||
| South Dalmatia region | |||||||||||||||||||||||||||||
Hot day. Maximum temperature > 35 °C
Locally possible isolated severe thundershowers in the area next to the border with Slovenia. Lightning risk > 50 %
Hot day. Maximum temperature > 34 °C
Hot day. Maximum temperature > 34 °C
Locally in Gorski kotar possible severe thundershowers with strong and gale force wind gusts. Locally possible urban and flash floods. Maximum gust speed > 65 km/h; Lightning risk > 60 %
Locally possible severe thundershowers accompanied. A moderate and strong jugo (SE) and S wind, suddenly turning to N and NW, with strong to gale force gusts. Locally possible urban and flash floods. Maximum gust speed > 65 km/h; Lightning risk > 60 %
Heat wave. Maximum temperature > 32 °C
Locally strong SE wind. Maximum wind gusts 35-40 knots (65-75 km/h)
Locally strong SE wind. Maximum wind gusts 35-40 knot (65-75 km/h)
