Weather report issued by The Marine Meteorological Center Department Split on 21.04.2026 at 12


Warning
At the foot of Velebit, from the night also elsewhere occasional gusts of NE wind 35-45, at night at the foot of Velebit up to 60 knots. Still today the gusts of S wind 35-40 knots are likely in the far south of the Adriatic. Isolated thunderstorms.
Synopsis
A shallow trough with a frontal system is slowly shifting across the Adriatic and a ridge of a high will be gradually intensifying from the north.
Weather forecast for the Adriatic for the first 12 hours
NE, in the Central and South Adriatic also NW wind 6-16, at the foot of Velebit up to 24 knots. At night NE wind will increase to 10-20, locally in the North and Central Adriatic up to 24, at the foot of Velebit up to 32 knots. In the far south of the Adriatic S wind 12-24 knots. The sea 2-3, still initially 4 locally in the far south of the Adriatic. Visibility 10-20 km. Variably cloudy with scattered rain and rain showers with thunder.
Weather forecast for the next 12 hours
Moderate to fresh, locally in the North and Central Adriatic strong, at the foot of Velebit also near gale NE wind. In the open sea of the Central and South Adriatic light to moderate NW wind. The sea smooth to slight, locally in the North and in a part of the Central Adriatic also moderate. Variably cloudy with scattered rain and rain showers with thunder but a partial clearing up is expected in the North Adriatic.

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