5-day weather forecast Grožnjan Oct 17, 2026

18°15° · Overcast

Weather forecast Grožnjan Saturday Oct 17, 2026: overcast, temperature from 15 °C to 18 °C.

Precipitation probability 16%. Wind up to 3 m/s (gusts 7.39 m/s). Air humidity 51–66%, atmospheric pressure 761–764 mm Hg, UV index up to 2.7.

Weather Alerts

ModerateOct 12, 07:02 PM — Oct 14, 11:59 PMTranslate with Google

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 07:24
Sunset 18:16

First Quarter47% illuminated
Moonrise 14:32 · Moonset 22:58

Chart

Table

← Fri, Oct 16

Sat, Oct 17, 2026

Sun, Oct 18 →

Forecast from 15 °C to 18 °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)	16	16	16	16	16	15	15	15	15	16	16	17	17	17	17	17	17	17	17	18	17	17	17	17
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 (%)	100	100	100	98	100	100	100	100	100	100	100	100	100	100	100	100	98	100	100	100	100	100	100	100
Rain chance (%)	16	16	16	16	16	15	15	14	13	13	13	12	12	12	13	13	13	13	14	14	14	15	15	15

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)	1.89	1.31	1.39	2.11	2.5	3	2.81	2.39	2.11	1.89	1.5	0.61	0.39	1.19	1.31	0.81	0.39	0.69	0.89	0.81	1.19	1.69	1.81	1.81
Wind gust (m/s)	5.89	5.31	1.53	2.42	2.83	3.11	2.83	7.39	6.11	5.89	5.5	0.72	5.39	5.19	6.31	3.81	0.42	0.83	1.11	1	1.22	6.69	5.81	4.81
Wind direction (°)	E 90°	ENE 62°	NE 45°	NE 47°	NE 52°	ENE 72°	E 82°	E 85°	E 82°	E 84°	E 91°	E 95°	WNW 282°	W 279°	WNW 282°	W 280°	SW 233°	SSW 197°	S 186°	SSE 160°	ESE 121°	ESE 115°	ESE 111°	ESE 104°

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 (%)	65	66	65	66	65	63	60	58	56	55	53	51	51	52	53	54	54	56	57	58	59	61	62	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)	764	764	764	764	763	763	763	762	762	763	762	762	762	762	762	761	761	761	761	761	762	762	762	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	0.3	0.9	1.7	2.4	2.7	2.5	1.9	1.1	0.4	0	0	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.