5-day weather forecast Grožnjan 01-09-2026

Weather forecast Grožnjan today 01.09.2026: sunny, temperature from 24 °C to 28 °C.

Precipitation probability 14%. Wind up to 3.61 m/s (gusts 7.5 m/s). Air humidity 50–64%, atmospheric pressure 761–764 mm Hg, UV index up to 6.3.

Weather Alerts

Hide alerts

ModerateAug 31, 07:14 PM — Sep 1, 11:59 PMTranslate with Google

Yellow wind warning

Strong, locally near gale NE wind, from the middle of the day gradually easing to fresh. 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.

ModerateAug 31, 08:45 AM — Sep 2, 12:00 PMTranslate with Google

Yellow wind warning

Locally fresh NE breeze. Maximum wind gusts 35-40 knots (65-75 km/h)

ModerateAug 31, 07:20 AM — Sep 1, 11:59 PMTranslate with Google

Yellow high temperature warning

Heat wave. maximum temperature > 32 °C; minimum temperature > 26 °C

STAY ALERT for expected high temperatures. Health risks are possible in the vulnerable population, in particular senior citizens and small children.

5 days at a glance — tap a day to open it

Sunrise 06:26
Sunset 19:43

Waning Gibbous70% illuminated
Moonrise 21:08 · Moonset 11:06

Chart

Table

Tue, Sep 1, 2026

Wed, Sep 2 →

Forecast from 24 °C to 28 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	25	25	25	24	24	25	24	24	25	25	25	26	26	26	27	27	27	27	28	27	27	27	26	26
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	0	0	0	23	97	98	100	100	99	53	4	96	80	8	0	0	0	0	0	0	0	0	0	0
Rain chance (%)	4	4	4	5	14	13	14	14	13	6	3	11	9	3	2	2	2	3	3	4	4	4	4	4

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.19	3.19	3.31	2.81	2.81	2.61	2.61	2.81	2.69	3	2.19	0.81	1	2.5	1.61	2.31	2.5	2.39	2.89	2.89	3	3.61	3.5	2.89
Wind gust (m/s)	6.19	3.22	3.5	2.92	2.92	2.89	2.81	3.64	3.42	3.31	2.61	1.22	4.81	5.5	4.61	5.31	7.5	2.61	3.31	3.22	3.33	4.11	4.19	3.31
Wind direction (°)	ENE 76°	NE 49°	NE 48°	ENE 70°	E 94°	ESE 104°	ESE 103°	ENE 78°	NNE 32°	NNE 27°	N 8°	N 355°	WSW 249°	WSW 253°	WSW 247°	W 269°	WNW 290°	NW 316°	NNW 346°	N 349°	N 351°	N 1°	NNE 16°	NE 43°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	62	62	63	63	61	58	58	58	55	55	55	50	51	57	52	53	54	56	58	62	62	63	64	63

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	761	761	761	761	762	762	762	762	763	763	764	764	764	764	764	763	763	762	762	762	762	763	763	763

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.3	1.2	2.6	4.4	5.8	6.3	5.9	4.7	3.1	1.6	0.6	0.1	0	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	9.7	9.8	9.5	9.6	8.8	8.1	9	8.6	8.4	7.3	5.2	4.3	5.2	5.6	5.6	5.8	6	6.2	6.2	6.7	7	8	8.3	8.1
PM10 (µg/m³)	17.2	16.5	17.6	16.6	15.1	14.1	14.5	11.4	10.3	9	8	6.8	6.9	7.5	7.2	7.5	7.5	7.9	8.9	10	11.2	12.6	12.2	11.2
Ozone (O₃) (µg/m³)	67	66	63	62	59	53	55	67	69	66	80	88	92	94	97	103	110	113	110	103	94	88	78	70
NO₂ (µg/m³)	3.6	3	3	3.4	3.1	3.3	3.5	3.7	3.2	2.2	1.5	1.1	0.9	0.8	0.9	1	1.1	1.2	1.4	2	3.2	4.4	4.5	4.7
SO₂ (µg/m³)	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.4	0.4	0.3	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.4	0.4	0.3	0.2
CO (µg/m³)	149	152	153	154	149	144	147	147	151	148	145	143	147	145	145	145	147	146	147	150	150	150	151	153

Tue, Sep 1, 2026

Wed, Sep 2 →

Frequently asked questions about the 5-day weather in Grožnjan

What will the weather be like in Grožnjan over the next 5 days?

Over the next 5 days in Grožnjan the temperature is expected to range from about 23 to 29 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Grožnjan?

The chance of rain in Grožnjan over the next 5 days reaches 14%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Grožnjan?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Grožnjan will be the warmest and which the coolest?

Over the next 5 days the temperature in Grožnjan ranges from about 23 to 29 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Grožnjan over the next 5 days?

Over the next 5 days the wind in Grožnjan picks up to 5 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Grožnjan is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 14%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Grožnjan?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

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.

Learn more about our methodology →