5-day weather forecast Grožnjan Oct 15, 2026

19°16° · Sunny

Weather forecast Grožnjan tomorrow Oct 15, 2026: sunny, temperature from 16 °C to 19 °C.

Precipitation probability 19%. Wind up to 3.61 m/s (gusts 7.61 m/s). Air humidity 63–71%, atmospheric pressure 768–771 mm Hg, UV index up to 2.9.

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 07:21
Sunset 18:20

Waxing Crescent27% illuminated
Moonrise 13:00 · Moonset 20:56

Chart

Table

← Wed, Oct 14

Thu, Oct 15, 2026

Fri, Oct 16 →

Forecast from 16 °C to 19 °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)	17	17	17	17	17	16	16	16	16	17	17	18	18	19	19	19	19	19	19	19	19	19	18	18
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 (%)	4	1	53	39	88	5	11	52	97	66	100	38	57	24	100	65	12	16	5	14	100	85	98	99
Rain chance (%)	5	5	9	8	15	6	5	9	17	12	16	7	9	5	15	10	5	5	4	5	16	14	17	19

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)	3	2.61	2.81	2.31	2.31	2.39	1.39	2.39	2.31	2.31	1.69	1.89	2.61	3.19	3.19	3.5	3.61	3.19	2.89	2.61	2.39	2.39	2.5	2.39
Wind gust (m/s)	3.31	2.81	2.92	7.31	6.31	2.42	4.39	6.39	2.31	2.42	1.81	2.03	7.61	6.19	7.19	7.5	7.61	6.19	6.89	2.61	2.72	2.61	2.64	5.39
Wind direction (°)	NE 34°	NE 38°	NE 43°	NE 45°	NE 43°	NE 51°	ENE 72°	NE 35°	NE 37°	NNE 27°	NNE 27°	N 351°	NNW 336°	NNW 330°	NW 325°	NW 322°	NNW 329°	NW 326°	NNW 330°	NNW 341°	N 6°	NNE 27°	NE 40°	NE 55°

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	67	67	68	68	67	68	69	68	65	64	63	63	63	64	63	63	63	63	64	66	69	71

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)	771	771	771	770	770	770	770	770	770	770	770	770	770	770	769	769	768	768	768	768	768	768	768	768

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	0.4	1	1.8	2.7	2.9	2.7	2	1.2	0.5	0	0	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)	11.8	11	10.1	9.5	8.6	7.6	7	7.1	8.4	7.2	6.1	6.1	5.8	5.4	5.8	6.6	7.1	7.7	9.8	11.1	11.7	12.7	13.4	14.3
PM10 (µg/m³)	14.8	14.3	12.9	11.2	9.5	8.8	8.2	8.9	9.4	9.8	8.6	8	7.6	7.8	8.2	9	9.3	10	11.8	13.8	15.1	16	16.4	15.9
Ozone (O₃) (µg/m³)	56	54	51	51	53	50	48	46	41	44	57	66	73	79	82	85	89	90	84	80	71	68	65	60
NO₂ (µg/m³)	7.1	6.2	5	4.1	3.6	3.4	3.3	3.9	6.2	6.7	4.3	3.1	2.2	1.5	1.4	1.4	1.5	1.7	2.6	3.6	5.1	6.2	6.4	6.1
SO₂ (µg/m³)	0.5	0.4	0.4	0.4	0.4	0.3	0.2	0.2	0.3	0.5	0.7	0.7	0.7	0.6	0.6	0.5	0.5	0.5	0.5	0.5	0.4	0.4	0.3	0.3
CO (µg/m³)	185	181	172	164	160	160	158	156	163	166	159	156	153	148	148	151	152	156	161	169	176	184	184	184