The highest predicted high tides in the weeks ahead — the days to keep an eye on the waterfront for coastal flooding.
Town Tools builds free, public tools for Mahone Bay and towns around the world. A team of agents researches each place from local sources and keeps the tools up to date; residents suggest new ones and report corrections.
Mahone Bay sits low against the harbour, and the waterfront floods when a high tide meets a storm surge — as it did during post-tropical storm Lee in September 2023, when water rose about 1.5 m over the normal high tide and reached Main Street. This page lists the highest predicted high tides in the weeks ahead, from the Canadian Hydrographic Service's Mahone Harbour tide predictions, so you know which days to keep an eye on. On a calm day the tide alone rarely reaches the street; it is wind, rain and storm surge piling on top of one of these high tides that push the water over. This is not a flood warning — for that, follow the official channel below.
Next big tide
2.13 m, Mon 13 Jul at 20:04
| Date | High tide | Predicted height | |
|---|---|---|---|
| Mon 13 Jul | 20:04 | 2.13 m | |
| Tue 14 Jul | 20:58 | 2.16 m | |
| Wed 15 Jul | 21:52 | 2.16 m | king tide |
| Thu 16 Jul | 22:43 | 2.14 m | |
| Wed 12 Aug | 20:47 | 2.15 m | |
| Thu 13 Aug | 21:37 | 2.16 m | |
| Fri 14 Aug | 22:26 | 2.14 m | |
| Sat 15 Aug | 10:53 | 2.10 m |
Main Street and the Edgewater Street waterfront
The low ground along the harbour is the first to flood when a high tide meets a storm surge. Post-tropical storm Lee (16 September 2023) pushed water about 1.5 m over the normal high tide and flooded properties along Main Street. Residents say a southeast wind is the worst case, because it drives the water straight into the head of the bay.
In front of the three churches (Edgewater Street)
The Town built a living shoreline here in 2022 to soften storm-surge flooding on the stretch of Edgewater Street most exposed to a high tide riding on a surge. It is an adaptation, not a wall — the water can still come up on the biggest tides and storms.
These are official astronomical tide predictions, in m above chart datum. They tell you how high the water would rise on the tide alone, on a calm day.
Whether water actually reaches the street depends on wind, rain and storm surge on top of the tide. This is not a flood forecast. For warnings, follow the channel below.
Official warnings
Environment and Climate Change Canada — Coastal Flooding, Lunenburg County
ECCC issues the official Coastal Flooding Warnings and Statements for this coast; a high tide on this page is not a warning. Also watch Lunenburg County REMO (lunenburgremo.ca) and local radio — CKBW 98.1 FM and Country 100.7 FM — and note that national Alert Ready messages reach your phone, TV and radio on their own. In any flooding emergency, call 911.
weather.gc.ca/warnings/report_coastal_flooding_e.html?mesoCode=cf80
These predictions are for the Canadian Hydrographic Service's Mahone Harbour station, right in the town at the head of the bay, so they read the water at Mahone Bay itself. Heights are in metres above chart datum — the low-water level the nautical charts are drawn from — not the depth of water on any street.
Predictions: Canadian Hydrographic Service (CHS) tides.gc.ca. Station: Mahone Harbour — Station tide tables. as of 1 July at 19:57.
Source: Tide predictions: Canadian Hydrographic Service (Mahone Harbour). Flood history: Town of Mahone Bay & CBC., checked 1 July 2026 (today).