Weather report issued by The Marine Meteorological Center Department Split on 20.05.2026 at 12


Warning
In the Central and South Adriatic occasional gusts of NW, at night and tomorrow of NE wind 35-45 knots. From the middle of the night occasional gusts of NE wind 35-50 knots in the North Adriatic, southwards of Istria.
Synopsis
A ridge of a high is gradually intensifying from the northwest across the Adriatic.
Weather forecast for the Adriatic for the first 12 hours
NW wind increasing to 6-16, in the Central and South Adriatic to 10-20, in the afternoon up to 24 knots. At night, first along the coast the wind will turn to NE 10-20, locally up to 24 knots, westwards and northwards of Istria 6-16 knots. The sea 2-3, in the open of the Central and South Adriatic 3-4. Visibility 10-20 km. Mostly clear skies but in the afternoon with some increased cloudiness locally along the coast of the North Adriatic there is a low risk of rain.
Weather forecast for the next 12 hours
Moderate to fresh, locally strong NE wind, westwards and northwards of Istria light, only in some places also moderate. Still initially in the open sea light to moderate, in the Central and South Adriatic moderate to fresh NW wind. The sea smooth to slight, in the open of the Central and South Adriatic and at the foot of Velebit also moderate. Mostly clear skies.
PMC - Split

Douglas scale
State of the sea Description Waves average height (m)
0 calm (glassy) 0
1 calm (rippled) 0 - 0.1
2 smooth 0.1 - 0.5
3 slight 0.5 - 1.2
4 moderate 1.25 - 2.5
5 rough 2.5 - 4
6 very rough 4 - 6
7 high 6 - 9
8 very high 9 - 14
9 phenomenal > 14

Beaufort scale
Wind speed Waves height
km/h m/s kt mph m ft
0 Bf calm < 1 0 - 0.2 < 1 < 1 - -
1 Bf light air 1 - 5 0.3 - 1.5 1 - 3 1-3 0.1 (0.1) 0.25 (0.25)
2 Bf light breeze 6 - 11 1.6 - 3.3 4 - 6 4 - 7 0.2 (0.3) 0.5 (1)
3 Bf gentle breeze 12 - 19 3.4 - 5.4 7 - 10 8 - 12 0.6 (1) 2 (3)
4 Bf moderate breeze 20 - 28 5.5 - 7.9 11 - 16 13 - 18 1 (1.5) 3.5 (5)
5 Bf fresh breeze 29 - 38 8.0 - 10.7 17 - 21 19 - 24 2 (2.5) 6 (8.5)
6 Bf strong breeze 39 - 49 10.8 - 13.8 22 - 27 25 - 31 3 (4) 9.5 (13)
7 Bf near gale 50 - 61 13.9 - 17.1 28 - 33 32 - 38 4 (5.5) 13.5 (19)
8 Bf gale 62 - 74 17.2 - 20.7 34 - 40 39 - 46 5.5 (7.5) 18 (25)
9 Bf strong gale 75 - 88 20.8 - 24.4 41 - 47 47 - 54 7 (10) 23 (32)
10 Bf storm 89 - 102 24.5 - 28.4 48 - 55 55 - 63 9 (12.5) 29 (41)
11 Bf violent storm 103 - 117 28.5 - 32.6 56 - 63 64 - 72 11.5 (16) 37 (52)
12 Bf hurricane >= 118 >= 32.7 >= 64 >= 73 14 (-) 45 (-)

Adriatic sub-basins