LIVE SHORE ROAD STATUS
Is Shore Road likely to flood today?
Monday, 24 August 2026
Road expected to remain dry
- NEXT HIGH TIDE
- 11:03 4.0m
- PARKING RISK
- SAFE ALL DAY
- ESTIMATED FLOOD WINDOW
- No flood window predicted for the next high water (below about 4.0m Chart Datum).
WEATHER WATCH: Borderline tide — strong southerly wind or low pressure could push the water above the flood level even though the prediction is below it.
BOSHAMTIDE.COM
Monday, 24 August 2026
NEXT TIDE THAT MAY FLOOD SHORE ROAD
Tomorrow 23:07
4.0m
Estimated flood window 22:39–23:34
Estimate from Admiralty UKHO predictions. Always check conditions on arrival.
Today's Bosham high tides
| TIME | HEIGHT | SHORE ROAD |
|---|---|---|
| 10:09 | 3.7m | Stayed dry |
| 22:22 | 3.8m | Stayed dry (borderline) |
What tide height floods Shore Road?
BoshamTide currently uses an approximate threshold of about 4.0m Chart Datum for Shore Road flooding. That figure is a local working estimate for this site — not a published UKHO constant — so treat it as guidance, not a guarantee.
Predicted high water at or above that level is treated as likely to cover the road. High water within about 0.3m of 4.0m is treated as borderline: wind and low pressure can tip it either way. Below that band, the road is generally expected to stay dry.
Real water can differ from the table because of weather, atmospheric pressure, wind set-up and the shape of Bosham Harbour. Always look at the road on arrival. See how BoshamTide calculates Shore Road flooding.
When should I move my car from Shore Road?
Do not use the exact high-tide time as the only moment to move a car. If a tide is high enough to flood, water usually starts covering the road before high water and can still be on the tarmac after the tide has turned.
Where BoshamTide predicts a flooding window, that start and end is shown in the live status above. Leave a safety margin around the predicted flooding window — arrive earlier than the start, and do not assume the road is clear the minute the window ends.
The next high water is not currently predicted to reach the flood level. That can still change in a surge or a strong southerly, especially on a borderline tide.
This is not a safety guarantee. If you are unsure, park further inland and walk down.
Why does Shore Road flood?
Shore Road runs immediately beside Bosham Harbour. Parts of the carriageway sit low enough that a large high tide comes over the quay edge and across the tarmac — the same stretch visitors use for parking by the water.
That is why a quiet neap can leave the road dry all day, while a spring tide can put cars in the water if they are left too long. The live Bosham tide times dashboard is built around that local problem, not around a generic tide table.
Tide-height guide
BoshamTide does not use a long ladder of flood bands. Parking advice follows one working threshold (4.0m) and a borderline margin of 0.3m:
| PREDICTED TIDE | TYPICAL BOSHAMTIDE STATUS |
|---|---|
| Below about 3.7m | Shore Road generally expected to remain dry |
| About 3.7m to just below 4.0m | Possible / marginal flooding — weather can decide it |
| 4.0m and above | Flooding increasingly likely around high water |
Heights are Admiralty predictions for Bosham, not a live gauge on Shore Road. See Bosham tide data and methodology for how the flood window is modelled.
Shore Road flooding FAQ
- Does Shore Road in Bosham flood every day?
- No. Shore Road floods when a high tide is large enough to reach the harbour edge — typically around 4.0m Chart Datum on this site. On smaller neap tides the road may stay dry all day. On spring tides it can be underwater for hours.
- What tide height does Shore Road flood?
- BoshamTide uses an approximate working threshold of about 4.0 metres above Chart Datum. That is a local estimate for Shore Road, not a published UK Hydrographic Office constant. Real water can sit above or below the prediction.
- Can I park on Shore Road at high tide?
- Right now Shore Road parking looks safe all day. High tide itself is not a guarantee of flooding — only tides that reach about 4.0m Chart Datum typically cover the road. On smaller neap tides the road may stay dry; on higher tides use the live flood window above.
- How accurate are Bosham tide predictions?
- High-water times and heights come from UK Hydrographic Office predictions via the Admiralty API. Flood windows are modelled from those predictions and a harbour curve, so they are estimates. Weather, pressure and local harbour conditions can change the outcome. Always judge what you see on the ground.
- Does weather affect flooding in Bosham?
- Yes. Wind, low pressure and surge can raise water above a predicted height, especially when high water is within about 0.3m of the 4.0m flood level. A borderline tide can stay dry on a calm day and cover the road in a southerly blow.