5-day weather forecast Grožnjan 05-09-2026
Weather forecast Grožnjan Saturday, September 5 05.09.2026: sunny, temperature from 25 °C to 27 °C.
Precipitation probability 12%. Wind up to 3.61 m/s (gusts 7.89 m/s). Air humidity 46–72%, atmospheric pressure 761–764 mm Hg, UV index up to 6.4.
Weather Alerts
Hide alertsModerate High temperature Warning (Degree 2/4) - Slovenia / South-West
Moderate High temperature Warning
High temperatures may affect the health of sensitive members of the population.
You are recommended to stay in the shade at midday and in the afternoon, while intense physical effort in the open is not recommended. Eat light food and drink enough liquids.
Vehicles parked in the sun should be aired out before driving.
Yellow wind warning
Locally fresh NE 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.
Yellow wind warning
Locally fresh NE 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.
Yellow wind warning
Fresh NE 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.
Yellow wind warning
Locally fresh NE 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.
5 days at a glance — tap a day to open it
Sunrise 06:31
Sunset 19:35
Sunset 19:35
Waning Crescent29% illuminated
Moonrise 23:52 · Moonset 15:52
Moonrise 23:52 · Moonset 15:52
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 26 °C | 3% | 0% | 60% | 763 mm Hg | SE 126° 3.61 (4.5) m/s | 0 |
| 01:00 | Clear | 25 °C | 3% | 0% | 56% | 763 mm Hg | E 94° 3 (3.31) m/s | 0 |
| 02:00 | Clear | 25 °C | 2% | 0% | 54% | 762 mm Hg | ENE 76° 3.11 (3.14) m/s | 0 |
| 03:00 | Clear | 25 °C | 2% | 2% | 53% | 762 mm Hg | ENE 78° 3 (3.03) m/s | 0 |
| 04:00 | Clear | 25 °C | 2% | 0% | 52% | 761 mm Hg | E 89° 2.89 (3.03) m/s | 0 |
| 05:00 | Clear | 25 °C | 2% | 0% | 50% | 761 mm Hg | E 79° 2.81 (5.81) m/s | 0 |
| 06:00 | Clear | 25 °C | 2% | 2% | 49% | 761 mm Hg | E 91° 2.69 (2.69) m/s | 0 |
| 07:00 |  Sunny | 25 °C | 2% | 5% | 48% | 761 mm Hg | E 96° 2.61 (2.61) m/s | 0 |
| 08:00 | Sunny | 25 °C | 2% | 5% | 48% | 762 mm Hg | E 88° 2.39 (2.5) m/s | 0.4 |
| 09:00 | Sunny | 26 °C | 1% | 5% | 46% | 762 mm Hg | E 95° 2 (2.42) m/s | 1.3 |
| 10:00 | Sunny | 27 °C | 2% | 1% | 48% | 763 mm Hg | SE 131° 1.31 (2.31) m/s | 2.7 |
| 11:00 | Sunny | 27 °C | 2% | 4% | 48% | 763 mm Hg | WSW 241° 1.31 (1.53) m/s | 4.4 |
| 12:00 | Sunny | 27 °C | 3% | 17% | 52% | 762 mm Hg | WSW 240° 2.69 (2.81) m/s | 5.8 |
| 13:00 | Sunny | 27 °C | 3% | 5% | 58% | 763 mm Hg | W 259° 2.89 (7.89) m/s | 6.4 |
| 14:00 | Sunny | 27 °C | 4% | 5% | 60% | 763 mm Hg | WSW 246° 2.39 (2.61) m/s | 6 |
| 15:00 | Sunny | 27 °C | 4% | 5% | 62% | 762 mm Hg | W 262° 1.81 (2) m/s | 4.8 |
| 16:00 | Sunny | 27 °C | 4% | 5% | 61% | 762 mm Hg | W 271° 1.39 (6.39) m/s | 3.1 |
| 17:00 | Sunny | 27 °C | 4% | 5% | 60% | 762 mm Hg | W 277° 0.31 (0.64) m/s | 1.6 |
| 18:00 | Sunny | 27 °C | 4% | 5% | 63% | 762 mm Hg | ESE 109° 1.19 (1.53) m/s | 0.6 |
| 19:00 | Sunny | 27 °C | 5% | 7% | 66% | 762 mm Hg | E 91° 1.61 (1.72) m/s | 0.1 |
| 20:00 | Clear | 27 °C | 6% | 11% | 68% | 762 mm Hg | ESE 105° 1.5 (1.72) m/s | 0 |
| 21:00 | Clear | 27 °C | 6% | 5% | 72% | 763 mm Hg | SSE 148° 0.89 (0.94) m/s | 0 |
| 22:00 | Clear | 26 °C | 6% | 5% | 72% | 764 mm Hg | SSW 193° 1.5 (1.61) m/s | 0 |
| 23:00 |  Cloudy | 26 °C | 12% | 64% | 71% | 764 mm Hg | SE 143° 1.81 (1.81) m/s | 0 |
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.