Anna Maria Island weather in short
Anna Maria Island weather follows two seasons. From June to September the days are hot and the rain is heavy, with 150 to 230 mm (6 to 9 inches) per month. From November to April the days are mild, the nights are cool and rainfall is lower. The Atlantic hurricane season runs from 1 June to 30 November, so it overlaps with the wet months and the early part of the dry ones.
The numbers below are 30-year averages for 1991 to 2020 from the weather station at Sarasota Bradenton airport on the mainland. They show typical months. They are not a forecast for your dates. If your trip includes a boat trip, look at the weather again a few days before, because wind and rain affect Anna Maria Island dolphin tours more than the temperature does.
Anna Maria Island weather by month
Average daily high and low, and average rainfall per month, 1991 to 2020.
| Month | High | Low | Rainfall |
|---|---|---|---|
| January | 22.5 °C (72 °F) | 11.3 °C (52 °F) | 70.9 mm (2.8 in) |
| February | 23.8 °C (75 °F) | 12.6 °C (55 °F) | 48.8 mm (1.9 in) |
| March | 25.7 °C (78 °F) | 14.5 °C (58 °F) | 72.4 mm (2.9 in) |
| April | 28.1 °C (83 °F) | 17.1 °C (63 °F) | 62.5 mm (2.5 in) |
| May | 30.8 °C (87 °F) | 20.1 °C (68 °F) | 65.5 mm (2.6 in) |
| June | 32.2 °C (90 °F) | 23.1 °C (74 °F) | 179.1 mm (7.1 in) |
| July | 32.8 °C (91 °F) | 24.0 °C (75 °F) | 187.7 mm (7.4 in) |
| August | 33.1 °C (92 °F) | 24.1 °C (75 °F) | 231.4 mm (9.1 in) |
| September | 32.3 °C (90 °F) | 23.4 °C (74 °F) | 152.4 mm (6.0 in) |
| October | 30.2 °C (86 °F) | 20.2 °C (68 °F) | 70.1 mm (2.8 in) |
| November | 26.7 °C (80 °F) | 15.6 °C (60 °F) | 46.0 mm (1.8 in) |
| December | 24.0 °C (75 °F) | 12.9 °C (55 °F) | 59.2 mm (2.3 in) |
The station is on the mainland, not on the island, so the beach can feel a little different from the airport on a given day. Use the table to compare months, not to predict a day. For most visitors, the months from November to April give a good mix of mild days and low rainfall.
Our pick: a sunset cruise
A trip around sunset is the usual way to spend a warm Gulf evening on the water.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in US dollars (as of October 2026). Tap a tour for live availability and the current price in your currency.
Boat tours and activities on Anna Maria Island
Dolphin cruises, sunset boats, kayak trips and fishing charters, with live prices and availability.
Best time to visit Anna Maria Island
A judgment call between heat, rain and hurricane season.
November to April
These months are cooler and have the lowest rainfall. In November the average high is 26.7 °C (80 °F) and monthly rain is 46.0 mm (1.8 in). That makes them the easiest months for long beach days, walks at Robinson Preserve and time on the water. A drier month is still not a guarantee of dry days.
May and October
May has highs of 30.8 °C (87 °F) with only 65.5 mm (2.6 in) of rain, and October has 30.2 °C (86 °F) with 70.1 mm (2.8 in). Both are warm and fairly dry compared with the summer. October is still inside hurricane season.
June to September
Expect highs of 32 to 33 °C (90 to 92 °F), warm nights and the heaviest rain of the year. These are the months to plan beach mornings and keep a flexible afternoon. They also sit fully inside hurricane season, so read the hurricane guide before you book.
Anna Maria Island in December
December is mild. The average high is 24.0 °C (75 °F), the average low is 12.9 °C (55 °F) and rainfall averages 59.2 mm (2.3 in). Evenings feel cool once the sun is down, so bring a layer. Hurricane season has ended by then. The trolley runs every day of the year. Holiday trolley timetables can differ, so check them in the trolley guide.
Weather and the beach: safety and season rules
What changes with the calendar and the sea.
Hurricane season
The Atlantic season runs from 1 June to 30 November. A storm-free period outside that window is not guaranteed, so treat the dates as a guide, not a promise.
Beach flags
Double red means the water is closed to the public. Single red means high hazard, yellow means medium hazard, green means lower hazard and caution, and purple means dangerous marine life. A beach without a flag is not a safe beach.
Lifeguards
Manatee Public Beach has lifeguards 365 days a year, from 9:00 a.m. to 5:00 p.m. between Labor Day and Memorial Day and from 9:00 a.m. to 7:00 p.m. between Memorial Day and Labor Day. Coquina Beach and Cortez Beach are guarded too. Bean Point is not.
Turtle nesting season
The local nesting season runs from 1 May to 31 October. After sunset there is no lighting on the beach, and you take furniture away at dusk. Do not disturb animals or nests.
Red tide
Red tide is separate from climate averages and can change from week to week. Check the current status for the Gulf Coast before you travel, and do not assume any month is free of it.
Siesta Key, to the south, shares the same Gulf climate. For that coast, see the Siesta Key weather guide.
Plan the rest of your trip
Where to go once you know the season.
Anna Maria Island weather: frequently asked questions
When is the best time to visit Anna Maria Island?
For mild days and low rain, the months from November to April work well. They are cooler and drier than summer, though no month guarantees dry weather. Pick your month by what matters most to you: heat, rain or hurricane risk.
How hot is Anna Maria Island in summer?
Average highs reach 32 to 33 °C (90 to 92 °F) from June to September, and lows stay around 23 to 24 °C (74 to 75 °F). Summer also has the most rain, with 150 to 230 mm (6 to 9 in) per month.
Is it safe to visit during hurricane season?
The season runs from 1 June to 30 November, and storms are possible in that window. Check forecasts before and during your trip, and ask about cancellation terms when you book.
What is the weather like on Anna Maria Island in December?
Mild. The average high is 24.0 °C (75 °F) and the average low is 12.9 °C (55 °F), with about 59.2 mm (2.3 in) of rain. Bring a layer for the evenings.
Is the temperature data from the island itself?
No. It comes from a weather station at Sarasota Bradenton airport on the mainland. It is a good guide to typical months, not an exact reading for the beach on a given day.
Is red tide a risk on Anna Maria Island?
Red tide is separate from climate averages and can change from week to week. Check the current status for the Gulf Coast before you travel, and do not assume any month is free of it.