5-day weather forecast Grožnjan Oct 18, 2026
19°Weather forecast Grožnjan Sunday Oct 18, 2026: partly cloudy, temperature from 16 °C to 19 °C.
Precipitation probability 16%. Wind up to 2.81 m/s (gusts 7.19 m/s). Air humidity 49–65%, atmospheric pressure 764–768 mm Hg, UV index up to 5.
Weather Alerts
Yellow wind warning
Strong, locally near gale NE wind. Maximum wind gusts 35-55 knots (65-100 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 07:25
Sunset 18:15
Sunset 18:15
First Quarter58% illuminated
Moonrise 15:04 · Moonset does not set today
Moonrise 15:04 · Moonset does not set today
Chart
Table
Sun, Oct 18, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 17 °C | 16% | 100% | 64% | 764 mm Hg | ENE 71° 1.89 (5.89) m/s | 0 |
| 01:00 | Overcast | 16 °C | 16% | 100% | 65% | 764 mm Hg | ENE 72° 1.89 (6.89) m/s | 0 |
| 02:00 | Overcast | 16 °C | 16% | 100% | 65% | 764 mm Hg | E 79° 2.19 (7.19) m/s | 0 |
| 03:00 | Overcast | 16 °C | 16% | 100% | 64% | 764 mm Hg | E 91° 2.19 (6.19) m/s | 0 |
| 04:00 | Overcast | 16 °C | 15% | 100% | 63% | 764 mm Hg | E 96° 2.19 (5.19) m/s | 0 |
| 05:00 | Overcast | 16 °C | 15% | 100% | 60% | 764 mm Hg | E 96° 2.11 (6.11) m/s | 0 |
| 06:00 | Overcast | 16 °C | 14% | 100% | 59% | 764 mm Hg | E 96° 1.89 (4.89) m/s | 0 |
| 07:00 |  Cloudy | 16 °C | 9% | 70% | 58% | 764 mm Hg | E 94° 1.81 (4.81) m/s | 0 |
| 08:00 | Partly cloudy | 16 °C | 7% | 49% | 58% | 765 mm Hg | E 92° 1.81 (6.81) m/s | 0 |
| 09:00 | Partly cloudy | 16 °C | 5% | 38% | 57% | 766 mm Hg | E 89° 1.61 (4.61) m/s | 0.3 |
| 10:00 | Partly cloudy | 17 °C | 6% | 50% | 55% | 766 mm Hg | E 99° 1.31 (5.31) m/s | 0.9 |
| 11:00 | Partly cloudy | 17 °C | 4% | 27% | 53% | 767 mm Hg | SE 127° 0.69 (0.72) m/s | 1.8 |
| 12:00 | Partly cloudy | 18 °C | 5% | 48% | 51% | 767 mm Hg | SSW 211° 0.69 (4.69) m/s | 2.5 |
| 13:00 |  Cloudy | 18 °C | 8% | 71% | 51% | 767 mm Hg | WSW 238° 1.11 (4.11) m/s | 2.9 |
| 14:00 | Partly cloudy | 18 °C | 4% | 34% | 52% | 767 mm Hg | WSW 258° 1.39 (4.39) m/s | 2.7 |
| 15:00 | Partly cloudy | 18 °C | 7% | 62% | 51% | 767 mm Hg | W 270° 1.5 (5.5) m/s | 5 |
| 16:00 | Partly cloudy | 19 °C | 4% | 32% | 50% | 767 mm Hg | W 279° 1.31 (6.31) m/s | 5 |
| 17:00 | Partly cloudy | 19 °C | 5% | 53% | 50% | 767 mm Hg | W 280° 1 (1) m/s | 5 |
| 18:00 |  Sunny | 19 °C | 2% | 6% | 49% | 767 mm Hg | WNW 293° 0.61 (0.69) m/s | 5 |
| 19:00 |  Clear | 18 °C | 2% | 5% | 50% | 767 mm Hg | N 357° 0.81 (0.81) m/s | 0 |
| 20:00 | Clear | 18 °C | 3% | 5% | 53% | 767 mm Hg | NNE 25° 1.61 (4.61) m/s | 0 |
| 21:00 | Clear | 18 °C | 3% | 5% | 58% | 768 mm Hg | NE 35° 2.31 (5.31) m/s | 0 |
| 22:00 | Clear | 17 °C | 4% | 5% | 61% | 768 mm Hg | NE 39° 2.69 (2.72) m/s | 0 |
| 23:00 | Clear | 17 °C | 4% | 5% | 62% | 768 mm Hg | NE 43° 2.81 (2.92) m/s | 0 |
Sun, Oct 18, 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.