5-day weather forecast Grožnjan 16-08-2026
Weather forecast Grožnjan Sunday, August 16 16.08.2026: sunny, temperature from 23 °C to 30 °C.
Precipitation probability 4%. Wind up to 5.61 m/s (gusts 10.11 m/s). Air humidity 36–59%, atmospheric pressure 758–760 mm Hg, UV index up to 7.2.
Weather Alerts
Hide alertsSevere High temperature Warning (Degree 3/4) - Slovenia / South-West
Severe High temperature Warning
High temperatures will affect the health of sensitive members of the population.
Stay in the shade at midday and in the afternoon, while intense physical effort is not recommended. Eat light food and drink enough liquids. Wear airy and light clothes.
Drinking coffee, alcohol or very sweet drinks is not recommended. If you take medication for regulating blood pressure, consult your doctor. Air conditioning should be set to a temperature that is no more than 8 °C lower than the outside temperature. Domestic animals should have enough fresh water and shade. Living premises should be aired out at night and in the morning and sufficient air circulation should be ensured. We recommend shading premises externally. Vehicles parked in the sun should be aired out thoroughly before driving.
Extreme Forestfire danger Warning (Degree 4/4) - Slovenia / South-West
Extreme Forestfire danger Warning
There is an extreme risk of forest and bush fire.
Stay very vigilant. Be ready to take action to protect yourself from a rapidly developing fire. The public are asked to exercise extreme caution in the countryside, and immediately notify emergency services on any fire.
Moderate 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.
Severe High temperature Warning (Degree 3/4) - Slovenia / South-West
Severe High temperature Warning
High temperatures will affect the health of sensitive members of the population.
Stay in the shade at midday and in the afternoon, while intense physical effort is not recommended. Eat light food and drink enough liquids. Wear airy and light clothes.
Drinking coffee, alcohol or very sweet drinks is not recommended. If you take medication for regulating blood pressure, consult your doctor. Air conditioning should be set to a temperature that is no more than 8 °C lower than the outside temperature. Domestic animals should have enough fresh water and shade. Living premises should be aired out at night and in the morning and sufficient air circulation should be ensured. We recommend shading premises externally. Vehicles parked in the sun should be aired out thoroughly before driving.
Moderate 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.
5 days at a glance — tap a day to open it
Sunrise 06:07
Sunset 20:11
Sunset 20:11
Waxing Crescent18% illuminated
Moonrise 10:28 · Moonset 21:37
Moonrise 10:28 · Moonset 21:37
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 25 °C | 1% | 5% | 46% | 760 mm Hg | SE 129° 1.81 (3.78) m/s | 0 |
| 01:00 | Clear | 24 °C | 1% | 4% | 46% | 760 mm Hg | SE 126° 1.69 (3.58) m/s | 0 |
| 02:00 | Clear | 24 °C | 1% | 3% | 45% | 760 mm Hg | E 89° 2 (4.19) m/s | 0 |
| 03:00 | Clear | 24 °C | 1% | 3% | 42% | 759 mm Hg | ENE 64° 2.31 (4.83) m/s | 0 |
| 04:00 | Clear | 23 °C | 1% | 3% | 42% | 759 mm Hg | ENE 60° 2.31 (4.83) m/s | 0 |
| 05:00 | Clear | 23 °C | 1% | 2% | 42% | 759 mm Hg | ENE 63° 2.31 (4.83) m/s | 0 |
| 06:00 | Clear | 23 °C | 1% | 8% | 42% | 759 mm Hg | ENE 76° 2.19 (4.61) m/s | 0 |
| 07:00 |  Sunny | 23 °C | 1% | 5% | 42% | 759 mm Hg | E 90° 1.81 (3.78) m/s | 0.2 |
| 08:00 | Sunny | 26 °C | 1% | 7% | 39% | 760 mm Hg | SE 131° 1.69 (2.86) m/s | 0.7 |
| 09:00 | Sunny | 28 °C | 1% | 6% | 36% | 760 mm Hg | SSE 162° 1.69 (2.14) m/s | 1.9 |
| 10:00 | Sunny | 29 °C | 1% | 2% | 36% | 760 mm Hg | SSW 196° 1.89 (2.25) m/s | 3.5 |
| 11:00 | Sunny | 29 °C | 1% | 3% | 38% | 760 mm Hg | SW 217° 2.39 (2.83) m/s | 5.2 |
| 12:00 | Sunny | 30 °C | 1% | 4% | 40% | 760 mm Hg | SW 226° 2.81 (3.22) m/s | 6.6 |
| 13:00 | Sunny | 30 °C | 1% | 5% | 40% | 760 mm Hg | SW 219° 2.69 (3.11) m/s | 7.2 |
| 14:00 | Sunny | 30 °C | 1% | 5% | 40% | 760 mm Hg | SW 216° 3.11 (3.58) m/s | 6.8 |
| 15:00 | Sunny | 30 °C | 1% | 6% | 41% | 759 mm Hg | SSW 209° 3.61 (4.22) m/s | 5.5 |
| 16:00 | Sunny | 30 °C | 1% | 5% | 43% | 759 mm Hg | SSW 198° 3.61 (4.33) m/s | 3.8 |
| 17:00 | Sunny | 30 °C | 1% | 3% | 45% | 759 mm Hg | SSW 193° 3.61 (4.64) m/s | 2.1 |
| 18:00 | Sunny | 30 °C | 1% | 2% | 46% | 758 mm Hg | S 176° 3.31 (4.64) m/s | 0.9 |
| 19:00 | Sunny | 29 °C | 2% | 4% | 51% | 758 mm Hg | S 182° 5.11 (8.19) m/s | 0.2 |
| 20:00 | Sunny | 27 °C | 3% | 4% | 57% | 758 mm Hg | SSE 154° 5.61 (10.11) m/s | 0 |
| 21:00 | Clear | 25 °C | 3% | 5% | 57% | 759 mm Hg | SE 128° 4.31 (9.03) m/s | 0 |
| 22:00 | Clear | 24 °C | 4% | 8% | 59% | 759 mm Hg | SE 130° 4.31 (9.03) m/s | 0 |
| 23:00 | Clear | 23 °C | 3% | 10% | 58% | 759 mm Hg | ESE 108° 4.39 (9.25) 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.