In short
- Water: at the Fort Myers gauge, average sea level runs about 10 inches higher in September than in January (1996 to 2025).
- Rain: June to September brings 36.1 of the 53.4 inches of normal yearly rain (68%). November to April brings 11.1 inches (21%).
- Storms: the Atlantic hurricane season runs June 1 to November 30, and 14 of the 16 coastal storm days NOAA logged for Lee County in 2006 to 2025 fell inside it.
- So: winter and early spring are the calmest months on paper. The best month is still the one a licensed contractor can start with permits in hand.
On this page
If you are wondering about the best time of year for seawall work in Cape Coral, the public weather and water records give a clear seasonal pattern. We put NOAA's monthly water levels next to its rainfall normals for the Fort Myers area. We are an independent referral service that connects homeowners with local providers, not a contractor. En español: mejor época para el muro de contención en Cape Coral.
What this is not: the data shows weather and water, not contractor schedules, prices or permit wait times. We found no public data on those, so we make no claim about them. Ask each contractor what their calendar looks like.
Canal water runs about 10 inches higher in September than in January
Each bar is the average monthly mean sea level for that month, measured above the lowest month (January). We removed each year's own average first, so the long-term rise does not tilt the chart. Only the 27 years with all 12 months reported are used.
Average water level above January, by month (inches)
Source: NOAA CO-OPS monthly mean sea level, Fort Myers station 8725520 (Caloosahatchee River), 27 complete years between 1996 and 2025. This is a river-mouth gauge a few miles from Cape Coral; a canal can behave differently.
68% of the year's rain falls June to September
Rain matters on a seawall job because water pooling behind the wall, or running off the yard, is part of what a crew works around. Normal monthly rain at the Fort Myers airport station is below.
Normal rainfall by month, 1991 to 2020 (inches)
| Season | Months | Normal rain |
|---|---|---|
| Dry season | November to April | 11.1 in |
| Transition | May and October | 6.1 in |
| Wet season | June to September | 36.1 in |
Source: NOAA NCEI U.S. Climate Normals 1991 to 2020, station USW00012894 (Fort Myers Southwest Florida Regional Airport). The airport is inland of Cape Coral, so your rain can differ. Normals are averages, not forecasts.
Storm season overlaps the highest water
NOAA's Atlantic hurricane season is June 1 to November 30. Our Cape Coral hurricane history counted 16 coastal storm days in Lee County for 2006 to 2025, and 14 fell in those six months. The two others were December coastal-flood days. September, the month with the highest average water here, is also in the middle of that season.
November to April
- Lowest average water of the year
- Least rain: 11.1 inches in six months
- Outside hurricane season (December coastal-flood days did occur)
Weather fit: the easiest on paper. Ask each contractor how booked they are in this window.
June to October
- Water up to 10 inches above January levels
- Daily summer storms and heavy rain
- Hurricane season, 14 of 16 storm days
Weather fit: harder. Work can still be done, but delays from weather are likelier.
How to use this when planning a seawall job
- If the wall is failing now (soil washing out, leaning, cap cracks), do not wait for winter. See our seawall failure signs and have it inspected.
- Ask for quotes in summer or fall for a start in the dry season, since permits and scheduling take time. Our permit guide shows the path.
- Ask each contractor how they handle rain delays and what happens if a named storm is forecast mid-job.
- Ask how long the quote is valid and whether the price holds if the start date moves.
- Compare bids side by side with our bid comparison worksheet.
Plan ahead: getting quotes and permits sorted by early fall can line a start up with the November to April window. Whether that saves money or time depends on the contractor. We have no data on seasonal pricing.
Sources and method
- Water levels. NOAA CO-OPS Tides and Currents, monthly mean sea level, station 8725520 Fort Myers, 1996 to 2025, queried 2026-10-27. Average of each month's difference from its year's mean, for 27 years with all 12 months. Public domain.
- Rainfall. NOAA NCEI Climate Normals 1991 to 2020 (monthly), station USW00012894. Public domain.
- Storm days. NOAA NCEI Storm Events Database, as counted on our hurricane history page.
Cape Coral Seawall Contractors is a referral service. We connect visitors with independent local providers and do not do the work ourselves.
Frequently asked questions
What is the best time of year for seawall work in Cape Coral?
On weather and water alone, November to April: the lowest average water level (September averages 10 inches above January at the Fort Myers gauge), the least rain (11.1 inches in six months) and outside hurricane season. A contractor's calendar and your permit timing matter as much, and we have no data on those.
Does a seawall have to be replaced in winter?
No. If your wall is leaning, washing out soil or cracking, the risk grows with each storm, so waiting for a season is not a good plan. Have it inspected and ask a licensed contractor how urgent it is.
Is the Fort Myers gauge the same as my canal?
No. It sits on the Caloosahatchee River at Fort Myers. Canal levels can differ, so treat the numbers as a regional pattern, not a reading for your property.
Does rainy season make seawall work cost more?
We found no public data on seasonal seawall pricing and will not guess. Ask contractors whether their price changes by season or if the start date slips.
Where does the rainfall figure come from?
NOAA NCEI 1991 to 2020 Climate Normals for the Fort Myers airport station. It is inland of Cape Coral, so local totals can differ, and a normal is an average, not a forecast.