5-day weather forecast Grožnjan Sep 28, 2026
22°Weather forecast Grožnjan Monday Sep 28, 2026: sunny, temperature from 18 °C to 22 °C.
Precipitation probability 9%. Wind up to 3.61 m/s (gusts 7.61 m/s). Air humidity 56–64%, atmospheric pressure 765–767 mm Hg, UV index up to 6.
Weather Alerts
Moderate Thunderstorms Warning (Degree 2/4) - Slovenia / South-West
Moderate Thunderstorms Warning
Thunderstorms are possible, accompanied by local intense precipitation and gusty winds. Intense local showers with wind blasts and lightning strikes are possible. Torrential watercourses may rise quickly. Rainwater floods are possible.
Beware of approaching storm clouds. Do not linger in exposed locations, e.g. under trees or power lines. Wait in a safe place, as storms usually do not last long.
Moderate Thunderstorms Warning (Degree 2/4) - Slovenia / South-West
Moderate Thunderstorms Warning
Thunderstorms are possible, accompanied by local intense precipitation and gusty winds. Intense local showers with wind blasts and lightning strikes are possible. Torrential watercourses may rise quickly. Rainwater floods are possible.
Beware of approaching storm clouds. Do not linger in exposed locations, e.g. under trees or power lines. Wait in a safe place, as storms usually do not last long.
Yellow thunderstorm warning
Severe thundershowers locally.
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.
Yellow thunderstorm warning
Severe thundershowers locally.
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.
Yellow wind warning
Strong bura (NE wind) with gale force gusts.
STAY ALERT for debris carried by strong winds. Debris and tree branches carried by the wind may cause localised interruptions in outdoor activities.
5 days at a glance — tap a day to open it
Sunrise 06:59
Sunset 18:51
Sunset 18:51
Waning Gibbous91% illuminated
Moonrise 19:14 · Moonset 08:56
Moonrise 19:14 · Moonset 08:56
Chart
Table
Mon, Sep 28, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 19 °C | 4% | 2% | 63% | 765 mm Hg | E 96° 2.11 (5.11) m/s | 0 |
| 01:00 | Clear | 19 °C | 4% | 4% | 63% | 765 mm Hg | E 100° 2 (6) m/s | 0 |
| 02:00 | Clear | 19 °C | 4% | 0% | 63% | 765 mm Hg | E 99° 1.89 (5.89) m/s | 0 |
| 03:00 | Clear | 19 °C | 4% | 0% | 63% | 767 mm Hg | NE 45° 2.31 (6.31) m/s | 0 |
| 04:00 | Clear | 18 °C | 4% | 2% | 63% | 767 mm Hg | NE 42° 2.19 (6.19) m/s | 0 |
| 05:00 |  Partly cloudy | 18 °C | 6% | 25% | 63% | 765 mm Hg | E 91° 2 (5) m/s | 0 |
| 06:00 | Clear | 18 °C | 4% | 0% | 63% | 766 mm Hg | NE 47° 2.11 (7.11) m/s | 0 |
| 07:00 | Clear | 18 °C | 4% | 0% | 63% | 766 mm Hg | NE 46° 2.11 (6.11) m/s | 0 |
| 08:00 |  Partly cloudy | 18 °C | 7% | 48% | 62% | 765 mm Hg | E 90° 2 (5) m/s | 0.2 |
| 09:00 | Sunny | 19 °C | 3% | 0% | 59% | 767 mm Hg | NNE 25° 2 (2) m/s | 0.7 |
| 10:00 | Sunny | 19 °C | 3% | 0% | 57% | 767 mm Hg | N 1° 2.19 (2.53) m/s | 1.7 |
| 11:00 | Sunny | 20 °C | 3% | 5% | 57% | 766 mm Hg | SSW 205° 0.69 (0.81) m/s | 3 |
| 12:00 | Sunny | 21 °C | 3% | 0% | 56% | 767 mm Hg | NNW 332° 2.69 (2.69) m/s | 4 |
| 13:00 | Sunny | 21 °C | 3% | 0% | 56% | 767 mm Hg | NW 319° 3.19 (7.19) m/s | 4.5 |
| 14:00 |  Cloudy | 21 °C | 9% | 64% | 61% | 766 mm Hg | WSW 253° 1.19 (5.19) m/s | 4.1 |
| 15:00 | Sunny | 21 °C | 3% | 0% | 59% | 766 mm Hg | NW 313° 3.5 (6.5) m/s | 6 |
| 16:00 | Sunny | 21 °C | 3% | 0% | 58% | 766 mm Hg | NW 313° 3.61 (7.61) m/s | 6 |
| 17:00 | Sunny | 21 °C | 4% | 5% | 60% | 765 mm Hg | W 269° 1 (1.03) m/s | 6 |
| 18:00 | Sunny | 22 °C | 3% | 0% | 59% | 766 mm Hg | NNW 329° 2.61 (2.72) m/s | 6 |
| 19:00 | Clear | 21 °C | 3% | 0% | 59% | 766 mm Hg | N 349° 2.19 (2.42) m/s | 0 |
| 20:00 | Clear | 21 °C | 4% | 6% | 62% | 765 mm Hg | NE 42° 1.69 (5.69) m/s | 0 |
| 21:00 | Partly cloudy | 20 °C | 5% | 14% | 63% | 765 mm Hg | NE 52° 1.81 (6.11) m/s | 0 |
| 22:00 | Clear | 20 °C | 5% | 22% | 63% | 766 mm Hg | ENE 62° 1.81 (6.5) m/s | 0 |
| 23:00 | Partly cloudy | 20 °C | 6% | 30% | 64% | 766 mm Hg | ENE 71° 1.89 (6.89) m/s | 0 |
Mon, Sep 28, 2026
Grožnjan on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.