Fort Lauderdale in August: 90°F Days, 88°F Water and 11 Rain Days

FORT LAUDERDALE · AUGUST · THE MONTH IN NUMBERS

Ninety degrees by day, 77.9°F at night, 7.89 inches of rain, and ocean water at 88.2°F. That is August in Fort Lauderdale in four figures, three of them from NOAA’s 1991-2020 normals and one from a decade of marine readings. The month asks for an early start, a swim and a loose afternoon.

It also falls inside the Atlantic hurricane season, which NOAA’s National Hurricane Center runs from June 1 to November 30, peaking on September 10, with most activity between mid-August and mid-October. That line changes how you book far more than how you pack. Everything else is heat management, and this stretch of coast is built for it.

On this page

• Fort Lauderdale weather in August90.0°F highs, 77.9°F lows, 11.2 rain days
• Sea temperature in August88.2°F, and how that figure is built
• Room tax and booking rulesBroward’s 6% lodging tax, plus the storm clause
• Things to do in AugustMizell-Eula Johnson, Hugh Taylor Birch, Oleta River
• A two-day plan around the heatDay one and day two, hour by hour
• August against July and SeptemberHow the three months compare, in five rows
• Is August a good time to go?Who it suits, and who should shift four weeks

Rental cars, budget tiers and the choice of neighborhood do not move between June and August, and they live in getting around Florida, what a Florida trip costs and where to stay. Dated answers start with the thermometer.

Fort Lauderdale weather in August: average highs, lows and rain days

The normals above come from one thermometer rather than a grid cell: NOAA station USW00012849, filed as FT LAUDERDALE HOLLYWOOD AP, sitting about three miles inland from the sand. Its August average high is 90.0°F and its average low 77.9°F across the 1991-2020 period. Those three miles matter. The gauge misses the sea breeze that reaches the beach by late morning, and it sits among runways and parking aprons that hold heat after dark. Read the figures as the county baseline, not as the reading on your balcony.

Measurable rain arrives on 11.2 days at 0.10 inch or more, about one day in three, and 2.3 of those days carry an inch or more on their own. The heavy pair does most of the damage to a schedule, while the remaining total spreads thin across the other nine. Put the outdoor block in the first half of the day and leave the second half unbooked, because a soaked hour in August rarely costs you the evening.

Between 90.0°F and 77.9°F there are only 12.1 degrees, which means nothing really cools off. A night walk starts near 80°F with the humidity still on it, so the bag holds no sweater and no jeans. What it does hold: a second shirt for the afternoon, a zip pouch for the phone on the inch-plus days, and shoes that survive a soaking and go back on two hours later. Air conditioning provides the only temperature change of the day, and restaurants here run it cold.

August 15 delivers 13 hours 05 minutes of daylight, sunrise at 6:52 a.m. and sunset at 7:57 p.m. Eastern. That buys a genuine early morning, when the sand is walkable barefoot and the lots are empty, and a long evening at the other end. A 6 p.m. beach hour is still full daylight, and it is the coolest usable outdoor hour of the day.

Can you swim in Fort Lauderdale in August? Sea temperature and what it feels like

Sea surface off Fort Lauderdale averages 88.2°F in August, and the construction of that figure matters: it is the mean of daily maxima across 2015-2024 in the Open-Meteo marine series, so it runs a shade warmer than a 24-hour mean would. Take it as the afternoon water rather than the dawn water. It is also modeled sea surface, not a reading from a buoy at the end of the pier.

Nobody gasps going in. At 88.2°F there is no shock and no time limit: small children stay until they are bored, snorkelers need a rash guard for the sun rather than warmth, and the water gives back almost nothing in the way of cooling against a 90.0°F air normal. Shade and the breeze do that job instead, which is why the promenade benches fill before the sand does at two in the afternoon.

On wind and swell we have nothing to give you: no local buoy series could be read while this was researched, so no wave height or wind speed appears above. What is documented is the season. NOAA’s National Hurricane Center dates most Atlantic activity from mid-August to mid-October, and a storm still hundreds of miles offshore changes surf and rip current risk days before it changes anything in the local forecast. Read the flag at the lifeguard stand, and read the tropics before you fly.

How busy is Fort Lauderdale in August? Crowds, prices and the demand peak

Two calendars overlap here. Florida’s wet season runs May through October, and the hurricane season’s active stretch runs mid-August to mid-October by NOAA’s dating, with the peak landing on September 10. Those are calendar facts. A ranking of room rates is not: we could not read a monthly rate or occupancy series for Broward County, so we rank nothing and crown no cheapest month.

The storm window shows up in the cancellation clause rather than the nightly figure. Book refundable, keep the flight changeable if your dates fall after the 15th, and buy named-storm coverage before any storm has a name, which is the one deadline the calendar sets for you. Six to eight weeks of lead is usually enough for an August room (est.), and the clause you sign matters more than the week you book.

One layer of the bill ignores the season entirely: Broward County levies a 6.0% transient rental tax, filed and paid alongside the 6% state sales tax, per Florida Department of Revenue form DR-15TDT. That is 12% on the room before a property adds its own resort fee or parking charge. Those property charges were not readable at source, so budget for them without a number from us and check the line items at trip cost level before you confirm.

Paying up changes exactly one thing in August: distance to the sand. With 11.2 rain days and 90.0°F afternoons, a beach five minutes on foot gets used twice a day and a beach twenty minutes by car gets used once. Covered parking is the runner-up, since a car left in the open at noon is unusable for its first ten minutes.

Things to do in Fort Lauderdale in August

Plan the month around water rather than around walking. At 88.2°F the ocean runs warmer than July’s 88.1°F and September’s 87.7°F in the same marine series, and a two-hour swim costs nothing in effort while a two-hour midday walk costs the rest of your day. Everything that happens between eleven and four belongs indoors, in shade, or in the sea.

Three state parks sit inside the metro area, and the state counts what is in them. Dr. Von D. Mizell-Eula Johnson State Park holds 2.2 miles of beach, 4,531 feet of boardwalk, 2.6 miles of hiking trail, one designated swimming area and 1,410 parking spaces. Hugh Taylor Birch State Park is the pocket version: 275 parking spaces, 0.1 miles of beach, 0.3 miles of trail, 60 feet of boardwalk and one canoe, kayak and tube launch. On the bay, Oleta River State Park counts 925 spaces, 0.3 miles of beach, two launches and 14 cabins. Counts come from Florida DEP’s 2024 Recreational Facilities Inventory.

Those counts hold all year. August changes the air around them, not the inventory. The 2.6 miles of trail at Mizell-Eula Johnson make a pleasant hour at 7:30 a.m. and a poor decision at 2 p.m. under a 90.0°F normal, while the swimming area sits at 88.2°F either way. The 4,531 feet of boardwalk stay walkable on the days when an inch of rain has already landed, which happens 2.3 times in an average August.

On free things we came up empty, and we would rather say so. The park fee pages and the county transit pages either refused machine reads or rendered only in a browser on September 11, 2026, so we carry no entrance fee, no bus fare and no opening hour for any of the three. Nothing in the state inventory says free, and we will not say it on their behalf. Call the park or read the gate sign before you drive, especially on a day when you are choosing between them.

Fort Lauderdale in August: a two-day itinerary

Day one runs on the light. Sunrise at 6:52 a.m. makes a 7 o’clock beach hour realistic, with 1,410 spaces waiting at Mizell-Eula Johnson and 2.2 miles of sand to choose from. Swim from eight, walk the boardwalk before ten, take lunch indoors from noon to two, and treat the afternoon as the rain slot, because something falls on 11.2 days of the month. Back out at six, with sunset at 7:57 p.m. leaving nearly two hours of usable evening.

Day two swaps ocean for bay. Oleta River’s two launches put a kayak on flat water early, and its 14 cabins are the one way to sleep inside a state park without leaving the metro area. Let the afternoon decide the rest: if the sky holds, Hugh Taylor Birch’s 0.3 miles of trail and 60 feet of boardwalk make a short loop before dinner; if an inch is falling, that is an indoor afternoon, and Miami sits down the line for a museum and a late dinner.

Fort Lauderdale in August vs July and September

Across the three months the air barely moves. July and August share the same 90.0°F average high, September drops to 88.3°F, and the three overnight lows sit within 0.8 of a degree of each other. They separate on rain: 5.41 inches in July, 7.89 in August, 8.02 in September, all from station USW00012849. The sea stays a bathtub throughout, 88.1°F, 88.2°F and 87.7°F, from the marine series rather than the station.

Move four weeks earlier and you gain 2.48 inches of dry, give up a tenth of a degree of water, and start your trip before the season’s active stretch opens. Move four weeks later and you take 1.7°F off the daytime high, which is the only real cooling anywhere in this table, but you buy 8.02 inches of rain, water 0.5°F cooler, and the September 10 peak date sitting in the middle of your week.

Is August a good time to visit Fort Lauderdale?

Yes for swimmers, for families who want a pool-and-beach rhythm, and for anyone who values a long evening: 13 hours 05 minutes of daylight on the 15th, water at 88.2°F, sand usable until 7:57 p.m. No for anyone whose plan is walking a city at midday under a 90.0°F normal with 77.9°F nights behind it. And no for anyone signing a non-refundable rate, given where the month sits on NOAA’s activity curve.

When the answer is no, July is the near fix: identical 90.0°F high, 2.48 fewer inches of rain, water within a tenth of a degree, and the month reads out in full on our July page. If the trip can travel further in the calendar, the dry season from November through April is Florida’s other self, laid out in the twelve-month verdict. September is the one swap that does not pay: 0.13 inch more rain and the season’s peak date inside it.

What August gives that neither neighbor matches is the warmest water of the three at 88.2°F with a 7:57 p.m. sunset behind it, which turns the hottest part of the year into a two-swim day.

The last word

Book the refundable room, put the outdoor hours before eleven, and hold one indoor afternoon in reserve for the 2.3 days when an inch of rain lands. One figure not yet served: Fort Lauderdale-Hollywood International boarded 17,096,131 passengers in 2024, which the FAA classes a large hub, so an August arrival still queues at a busy terminal even in a wet month. Check the airline’s rebooking policy with the same attention you give the hotel’s.

Sources & data for this guide

• August highs, lows, precipitation and rain-day counts · NOAA NCEI monthly normals 1991-2020, station USW00012849 (Fort Lauderdale-Hollywood International) · checked Sep 12, 2026
• Station identity and inland position · NOAA NCEI Search service, station name verified · checked Sep 12, 2026
• Sea surface 88.2°F, mean of daily maxima 2015-2024 · Open-Meteo Marine API · checked Sep 12, 2026
• Daylight 13h 05m, sunrise 6:52 a.m. and sunset 7:57 p.m. on August 15, converted to America/New_York · sunrise-sunset.org · checked Sep 12, 2026
• Atlantic hurricane season dates, September 10 peak, mid-August to mid-October activity · NOAA National Hurricane Center · checked Sep 12, 2026
• July and September normals used in the comparison table · NOAA NCEI, same station and same 1991-2020 period · checked Sep 12, 2026
• 6.0% Broward County transient rental tax, filed with the 6% state sales tax · Florida Department of Revenue, form DR-15TDT · checked Sep 12, 2026
• Parking spaces, beach and trail miles, boardwalk feet, cabins at Mizell-Eula Johnson, Hugh Taylor Birch and Oleta River · Florida DEP Recreational Facilities Inventory, 2024 annual report · checked Sep 12, 2026
• FLL boardings, 17,096,131 in CY2024, large-hub classification · Federal Aviation Administration · checked Sep 12, 2026
• Editorial note: park entrance fees, park hours and local bus fares could not be read on Sep 11, 2026 (county transit page renders client-side, other operator pages refused machine reads), so no such amount is quoted anywhere above.