Rough water today
forecastNo weather alert for Crandon Park, but the forecast has waves to 5 ft and wind to 21 mph. Fine for a walk, not for a swim.
Rough water today. Overcast, high near 82°. Rain chance peaks at 35% around 5 PM. Driest stretch: 10 AM to 5 PM, but dry isn't calm. Keep out of rough water. Breezy, up to 21 mph.
forecastRain OutlookOpen-Meteo
tap an hourPeak rain chance 35% around 5 PM — plan beach time outside that window.
Tide
0.3 ft · falling ↘
Next low tide
12:24 PM 0.2 ft
T−…
1.9 ft of drop from the 7:54 AM high; the wet sand is widest from about 11:24 AM.
Wind
18 mph
from the E
UV Index
High
reapply every 80 min
Time to Burn
UV 6 · incl. sand glarefor unprotected fair skin (burns easily, tans a little). SPF 30+, reapply every 2 hours and after every swim.
Strongest 12 PM to 2 PM · peaks at UV 6
An estimate from the standard erythemal dose model, not a medical limit. Darker skin burns more slowly than this, people vary either way, and sunscreen only helps if you use enough of it and reapply.
Rip Current Riskestimated
todayDangerous currents likely. Knee-deep only, lifeguarded sand only.
Caught in one? Don’t fight it. Swim parallel to the beach until you’re free, then angle back in.
Beach Flag
Red Flag
knee-deep only
estimated · trust the lifeguard
Red Tide
Checking…
asking FWC
Stingers & Biters
modelled, not observedBased on wind, water temperature and humidity. Nobody publishes a live count, so this is what conditions favour today.
Portuguese man o' warUnlikely
The wind has been blowing along or off the beach, which keeps them offshore.
No-see-umsUnlikely
13 mph breeze around sunset should keep them down.
Water Quality
bacteria testingWater here is sampled by the Florida Healthy Beaches Program at the Crandon Park North - Key Biscayne station (0.6 km from the beach centre). We do not restate the result, because the state publishes it only on its own page and a stale copy here could be wrong about today.
Today’s official resultSource: Florida Department of Health
Sargassum WatchNOAA satellite
seaweed outlookLatest 7-day NOAA satellite composite detects moderate sargassum offshore. Some may drift onto the beach. Offshore satellite estimate only — on-the-ground conditions may differ.
Water by Monthtypical
avg 2021–2024Warmest around July (90°), coolest around January (73°).
surf’s up (gently)
Tides are NOAA predictions (Crandon Park station 8723232); temps, wind, UV, waves and water temp are live from Open-Meteo; rip current risk from the NWS surf-zone forecast; red tide from FWC sampling. Flag status is estimated from wave height and wind, so always trust the lifeguard’s actual flag over this app.
Weather watch in effect. The National Weather Service has a Flood Watch out for Crandon Park. FLOOD WATCH NOW IN EFFECT THROUGH MONDAY EVENING Meanwhile, a Rip Current Statement is in effect: Strong rip currents. Stay out of the water unless a lifeguard is on duty. The water at Crandon Park is 80°F (27°C) today, about normal for November. For swimming it is warm. Waves are 4–5 ft (rough). The air is 79°F, with windy 19 mph winds from the ESE. The UV index reaches 6 (high), strongest from 12 PM to 2 PM. The National Weather Service rip current risk is high.
The water warms about 2°F by Sun Nov 8.
The week ahead at Crandon Park, day by day: the sky, the high, the strongest wind and the biggest waves, the UV peak and the daytime chance of rain, and the water temperature. The calmest day for a swim looks like Sun Nov 8.
| Day | Sky | High | Wind | Waves | UV | Rain | Water |
|---|---|---|---|---|---|---|---|
| Today | Cloudy | 82°F | 21 mph | 4.7 ft | 6 | 35% | 80°F |
| Tue Nov 3 | Cloudy | 83°F | 17 mph | 3.1 ft | 6 | 24% | 80°F |
| Wed Nov 4 | Rain | 83°F | 15 mph | 2.6 ft | 6 | 62% | 81°F |
| Thu Nov 5 | Drizzle | 83°F | 12 mph | 1.3 ft | 6 | 11% | 81°F |
| Fri Nov 6 | Drizzle | 81°F | 12 mph | 1 ft | 6 | 4% | 81°F |
| Sat Nov 7 | Drizzle | 84°F | 11 mph | 1 ft | 6 | 4% | 82°F |
| Sun Nov 8 | Partly cloudy | 86°F | 13 mph | 0.7 ft | 6 | 15% | 82°F |
High and low tides for the next 7 days, from NOAA’s predictions for tide station 8723232. Heights are in feet above the average low tide. The shell window is the last hour and a quarter of the ebb and the first three-quarters of the flood around the day’s lowest daylight low, when the most sand is bare; the lowest low of the week is marked.
| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Shell window |
|---|---|---|---|---|---|
| Today | High 2:52 AM 2.3 | Low 9:41 AM 0.5 | High 3:34 PM 2.4 | Low 10:20 PM 0.6 | 8:26 AM–10:26 AM · best |
| Tue Nov 3 | High 4:03 AM 2.4 | Low 10:48 AM 0.5 | High 4:35 PM 2.4 | Low 11:21 PM 0.5 | 9:33 AM–11:33 AM |
| Wed Nov 4 | High 5:08 AM 2.4 | Low 11:49 AM 0.5 | High 5:31 PM 2.4 | — | 10:34 AM–12:34 PM |
| Thu Nov 5 | Low 12:15 AM 0.4 | High 6:07 AM 2.5 | Low 12:42 PM 0.5 | High 6:21 PM 2.5 | 11:27 AM–1:27 PM |
| Fri Nov 6 | Low 1:03 AM 0.3 | High 6:58 AM 2.6 | Low 1:31 PM 0.5 | High 7:07 PM 2.5 | 12:16 PM–2:16 PM |
| Sat Nov 7 | Low 1:47 AM 0.2 | High 7:44 AM 2.6 | Low 2:15 PM 0.5 | High 7:49 PM 2.5 | 1:00 PM–3:00 PM |
| Sun Nov 8 | Low 2:28 AM 0.1 | High 8:26 AM 2.6 | Low 2:56 PM 0.5 | High 8:29 PM 2.4 | 1:41 PM–3:41 PM |
The average sea temperature at Crandon Park for each month (2021–2024). The water is warmest in July (90°F) and coolest in January (73°F). It averages 74°F or warmer, comfortable for most swimmers, in February, March, April, May, June, July, August, September, October, November, December.
| Month | Water °F | Water °C | For swimming |
|---|---|---|---|
| January | 73°F | 23°C | Cool |
| February | 75°F | 24°C | Comfortable |
| March | 78°F | 25°C | Comfortable |
| April | 79°F | 26°C | Comfortable |
| May | 84°F | 29°C | Warm |
| June | 86°F | 30°C | Very warm |
| July | 90°F | 32°C | Very warm |
| August | 89°F | 31°C | Very warm |
| September | 87°F | 31°C | Very warm |
| October | 83°F | 28°C | Warm |
| November (now) | 79°F | 26°C | Comfortable |
| December | 76°F | 24°C | Comfortable |
Rip currents. Today’s National Weather Service rip current risk is high. If a current pulls you away from shore, don’t fight it: swim parallel to the beach until you are out of it, then swim back in. If you can’t, float and wave for help.
Sun. The UV index peaks at 6 today, when unprotected fair skin burns in about 24 minutes. Wear SPF 30 or higher, reapply every two hours and after swimming, and find shade in the middle of the day.
Red tide. Florida's state sampling (FWC) has flagged nothing near Crandon Park this week. Red tide can make you cough and sting your eyes near the water.
Seaweed. The NOAA satellite shows moderate sargassum offshore.
Water quality. Water at Crandon Park is sampled by the Florida Healthy Beaches Program at the Crandon Park North - Key Biscayne station. Official sampling results →
Dogs. Dogs are not allowed on this beach.
Weather alerts in effect: Flood Watch, Rip Current Statement, Coastal Flood Advisory.
Swim near a lifeguard when one is on duty, and follow the beach flags and posted signs. The Crandon Park rules page covers dogs, alcohol, fires and more.
Under 1 ft is calm, good for small children and floating. 1–2 ft is small, fine for most swimmers. 2–4 ft is moderate: fun for bodyboarding, harder for weak swimmers. 4–6 ft is rough, and over 6 ft is dangerous for swimming. Today at Crandon Park it’s rough.
Under 8 mph is light and pleasant. 8–15 mph is breezy, good for kites and cooler on a hot day. 15–25 mph blows sand and whips up the water. Over 25 mph most people pack up. Today at Crandon Park it’s windy.
0–2 is low, 3–5 moderate, 6–7 high, 8–10 very high and 11 or more extreme. At 8 or more, fair skin can burn in under 20 minutes. The UV index is highest around midday even when it is cloudy.
Under 60°F is cold and most people want a wetsuit. 68–73°F is cool but swimmable. 74–79°F feels comfortable, and 80°F or more feels warm.
80°F (27°C), about normal for November.
At 80°F the water is warm. Waves are 4–5 ft, which is rough. The rip current risk is high.
4–5 ft, which is rough. The wind is 19 mph from the ESE.
High tide is at 2:52 AM and 3:34 PM, and low tide is at 9:41 AM and 10:20 PM. Times are NOAA predictions.
The UV index peaks at 6 (high). At that peak, unprotected fair skin burns in about 24 minutes. Wear SPF 30 or higher, reapply every two hours and after swimming, and find shade in the middle of the day.
The National Weather Service rates the rip current risk at Crandon Park high today. If a current pulls you out, swim parallel to the shore until you are out of it, then swim back in.
Florida's state sampling (FWC) has flagged nothing near Crandon Park this week.
The NOAA satellite shows moderate sargassum offshore.
Highs run 81–86°F over the next 7 days. Rain is likely on Wed Nov 4. The calmest day for a swim looks like Sun Nov 8.
The water at Crandon Park averages about 79°F (26°C) in November.
July is the warmest month, averaging 90°F. January is the coolest, at 73°F.
The water averages 74°F or warmer from February, March, April, May, June, July, August, September, October, November and December. July is the warmest, at 90°F.
The usual water temperature in November at the nearest beaches. Tap one for its live conditions.
| Key Biscayne conditions | 2 mi | 79°F |
|---|---|---|
| South Beach Miami conditions | 5 mi | 79°F |
| Sunny Isles Beach conditions | 15 mi | 80°F |
| Hollywood Beach conditions | 21 mi | 82°F |
| Dania Beach conditions | 24 mi | 82°F |
| Fort Lauderdale Beach conditions | 29 mi | 82°F |
More for Crandon Park: parking · sunset time tonight · things to do · US water temperatures today →