Forecast summary

Experimental 5 day AI weather summaries for UK nations, focusing on rainfall and coastal conditions. Data via Open-Meteo. Take a detailed look at how this approach works here.

Key limitations
- AI summaries: Not human-reviewed.
- Deterministic model: No uncertainty shown.
- No hydrology: Lacks knowledge of anecdent conditions & forecast flows.
- Regional synthesis from point locations: Local variations & knowledge of syoptic conditions may not be captured effectively.

Use with caution and supplement with official guidance from the Met Office, Environment Agency, SEPA, and Natural Resources Wales.


Last updated: Fri 05 Dec 2025 20:44

This forecast covers Friday 05 December 2025 to Tuesday 09 December 2025.
Based on ECMWF deterministic guidance.

Headline: Persistent wet and windy conditions across Wales and southern England, with moderate rain and coastal winds easing late in the period.
Friday 05 to Sunday 07 December

Widespread drizzle and light rain will persist across Wales and much of southern England, with moderate rain developing at times, particularly in South West England and parts of South Wales. Moderate rain is expected to peak on Friday afternoon into early evening in these areas, with lighter rain and drizzle continuing overnight. Inland Wales and West Midlands will see mainly light rain or drizzle, while northern and eastern England remain mostly dry with occasional light rain or drizzle. Cloud cover will be extensive, with overcast skies prevailing.

Monday 08 to Tuesday 09 December

Rainfall will continue across southern and western parts of England and Wales, with moderate rain persisting especially in South West England and South Wales. Light rain and drizzle will affect much of the Midlands and southern England, with drier conditions and mainly overcast skies in northern England and East Midlands. Rainfall intensity may ease slightly by Tuesday but remains mostly light to moderate.

Coastal/tidal information

The tidal cycle will progress from peak spring tides early Saturday towards mid-cycle tides by Tuesday, with a gradual reduction in tidal range. Coastal winds will be moderate to fresh (Force 4-5) along the south and west coasts of England and Wales, coinciding with high tides on Friday and Saturday, potentially enhancing coastal water levels. Winds will ease later in the forecast period, reducing wind–tide interaction risks.

Nothing currently indicated that seems likely to exacerbate or create new flood risk.

Last updated: Fri 05 Dec 2025 20:43

This forecast covers Friday 05 December 2025 to Tuesday 09 December 2025.
Based on ECMWF deterministic guidance.

Headline: Persistent light rain and drizzle with moderate rain episodes, especially in southern and western England.
Friday 05 to Sunday 07 December

England will experience mainly overcast conditions with widespread light rain and drizzle, particularly in the South West and South East, extending into the Midlands. Rainfall amounts are generally light to moderate, with drizzle persisting through much of the period. Northern and North West England see drier spells with mainly cloudy to overcast skies and occasional light drizzle. Snowfall is confined to higher ground in the North West early Friday but will quickly give way to rain. Overall, rainfall totals remain moderate, with no intense downpours expected.

Monday 08 to Tuesday 09 December

Rainfall intensifies somewhat across southern and western England, with moderate rain developing especially in the South West and parts of the Midlands by Monday, continuing into Tuesday. Light rain and drizzle persist elsewhere, including East and North East England. Rainfall totals increase but remain moderate, with no significant heavy or prolonged rain events forecast. Cloud cover remains extensive, with occasional breaks in the east. Temperatures stay mild, limiting snow risk.

Nothing currently indicated that seems likely to exacerbate or create new flood risk.

Coastal/tidal information

Tidal levels will gradually reduce from the current spring tide phase towards mid-cycle tides by Tuesday. No large spring tides are expected during this period. Coastal winds will be moderate to fresh (Force 4-5) at times, especially along the South West and South East coasts during high tides on Friday and Monday evenings. These conditions may enhance wave action but are not expected to coincide with exceptionally high tides. Overall, coastal flood risk remains low.

Last updated: Fri 05 Dec 2025 20:43

This forecast covers Friday 05 December 2025 to Tuesday 09 December 2025.
Based on ECMWF deterministic guidance.

Headline: Persistent light to moderate rain with occasional heavier spells, easing slightly towards Tuesday.
Friday 05 to Sunday 07 December

Wales will experience predominantly overcast conditions with widespread drizzle and light rain, particularly across southern and western areas. Moderate rain is likely during Friday afternoon into early evening, especially in the south and southwest, with totals locally reaching a few millimetres. Northern and eastern parts will see mainly light rain or drizzle, with some drier spells overnight into Saturday. Sunday continues with mostly light rain and drizzle, with occasional moderate bursts mainly in the west and southwest. Overall, rainfall amounts remain modest but persistent.

Monday 08 to Tuesday 09 December

Rainfall intensity is expected to increase somewhat, with moderate rain developing widely across Wales, especially in the west and southwest. Light rain and drizzle will persist elsewhere, with some brighter intervals possible in the northeast later Tuesday. Rain totals over these two days may be locally significant, with moderate rain episodes lasting several hours. Cloud cover remains extensive, limiting any prolonged dry or bright spells.

Nothing currently indicated that seems likely to exacerbate or create new flood risk.

Coastal/tidal information

The tidal cycle is in a phase of large spring tides early in the period, peaking on Saturday morning, then gradually easing towards mid-cycle tides by Tuesday. Coastal winds will be moderate to fresh (Force 4-5) mainly from the southeast to south, with strongest gusts coinciding with the higher spring tides on Friday and Saturday. This wind-tide interaction may enhance coastal water levels and wave action, particularly along south and southwest coasts. Winds ease slightly later in the forecast period as tides reduce in range.

Last updated: Fri 05 Dec 2025 20:44

This forecast covers Friday 05 December 2025 to Tuesday 09 December 2025.
Based on ECMWF deterministic guidance.

Headline: Persistent light rain and drizzle with moderate rain developing late in the period, accompanied by strengthening winds.
Friday 05 to Saturday 06 December

Scotland will experience predominantly overcast conditions with widespread light rain and drizzle, particularly across the east and northeast. Rainfall amounts are generally light, though persistent drizzle may maintain damp conditions. Winds will be moderate, increasing through Friday evening, especially in coastal and northern areas. Western and Highland regions will see mainly light rain and drizzle, with some drier spells inland.

Sunday 07 to Tuesday 09 December

Rainfall intensity is expected to increase gradually, with moderate rain developing by Monday evening and continuing into Tuesday, especially in southern and western parts of Scotland. Drizzle and light rain will persist elsewhere, with occasional breaks in cloud cover. Winds will strengthen notably, reaching fresh to strong (Force 5-6) at times, particularly along western coasts and northern areas. This increase in rainfall and wind may raise local flood concerns later in the forecast period.

Nothing currently indicated that seems likely to exacerbate or create new flood risk through the weekend, but the moderate rain and stronger winds from Monday into Tuesday warrant monitoring.

Coastal/tidal information

Tidal heights will remain elevated early in the period, with spring tides easing from Saturday. The tidal cycle will transition to mid-cycle tides by Monday and Tuesday, reducing towards neap conditions. Stronger winds, reaching fresh to strong (Force 5-6), are forecast to coincide with high tides on Monday and Tuesday, particularly along western and northern coasts. This wind-tide interaction may enhance coastal wave action but no extreme tidal surge is expected.