Skip to main content
Weather background

Weather Forecasts

Today
High
16°
Low
12°
70%
F4
Tomorrow
High
17°
Low
13°
30%
F4
Thu, 11 Jun
High
17°
Low
14°
40%
F5
Fri, 12 Jun
High
17°
Low
13°
20%
F5
Sat, 13 Jun
High
20°
Low
14°
10%
F2
Sun, 14 Jun
High
21°
Low
14°
10%
F3
Mon, 15 Jun
High
20°
Low
14°
10%
F3
Morning
Sunrise 04:06
Max
16°
70%
F4
Sunny periods but a few showers likely, perhaps rather heavy at times. Wind west to southwest moderate F4 to fresh F5.
UV 7
Afternoon
Sunset 20:15
Max
16°
25%
F4
The chance of a shower at first, otherwise mainly sunny. Wind west moderate F4, occasionally fresh F5, especially in Alderney.
UV 7
Night
Last Quarter
Min
12°
30%
F4
Mainly clear, becoming cloudier with the chance of a shower later. Wind west moderate F4, occasionally light F3 later.

Shipping Forecast

General Situation
At 18:00UTC low, 991mb, near Iceland, slow moving, expected Norwegian Sea by midday Wednesday. Azores high, 1031mb, extended a ridge to France, expected to persist.

15.4°C
Sea Temperature

Forecast from 00:00UTC Tuesday to 00:00UTC Wednesday.
Wind
West to southwest 4 to 5, perhaps locally 6 at times.
Sea State
Moderate to rather rough, decreasing slight to moderate with a low swell later.
Weather
Isolated showers, perhaps locally heavy for a time after dawn.
Visibility
Good, locally moderate at times.
Outlook from 00:00UTC Wednesday to 00:00UTC Thursday.
Wind
West 4 to 5, occasionally 6 mid-Channel later.
Sea State
Slight to moderate with a low swell, occasionally rather rough later.
Weather
Isolated showers, dying out later.
Visibility
Good, locally moderate at times.

Understanding the Forecast

The wind speed is given in the Beaufort Scale on an 8 point compass with a variability of +-45°. Terms commonly used in association with the wind and other parts of the forecast include:

Veering - a change of wind in the clockwise sense (up to 180°)
Backing – a change of wind in the anticlockwise sense (up to 180°)
At first – within the first 12 hours
Later – within the latter 12 hours
Occasional/occasionally – lasts less than half the time (location or time specific)
At times – non-persistent (lasts more than half the forecast period)
For a time – a transient state

Waves or sea state is the forecast of the mean of the largest 7% of combined wind and swell waves. Wind waves are locally produced waves; swell waves are produced by distant strong winds. Sea state descriptions equate to the following wave heights:

Description

Height

Smooth

< 0.5m

Slight

0.5 - 1.25m

Moderate

1.25 - 2.5m

Rough

2.5 - 4.0m

Very Rough

4.0 - 6.0m

High

6.0 - 9.0m

Very High

9.0 - 14.0m

Phenomenal

> 14m

Visibility measurements equate to the following distances in nautical miles and kilometers:

Description

Distance N.Mi

Distance Km

Good

> 5 n.mi

> 10 km

Moderate

2 - 5 n.mi

3.7 - 9 km

Poor

0.6 - 2 n.mi

1.0 - 3.7 km

Very Poor

< 0.6 n.mi

< 1000 m

Weather & Tide Info

Recent Stories