Best Time to Visit Clearwater: Month-by-Month Weather, Sea Temperature and the Quiet Weeks

CLEARWATER · THE 12-MONTH VERDICT · 27.97° N

Clearwater’s year turns on four months. June through September drop 33.82 of the 53.62 inches that fall in an average year, roughly 63 percent of the rain packed into a third of the calendar. The other eight months are dry enough that the beach town’s whole reputation was built on them. November alone averages 1.64 inches across 2.5 days wet enough to register 0.10 inch.

So the question is rarely whether the sun turns up. It is whether the Gulf is warm enough to swim in, whether the afternoon stays under 85°F, and whether the week you can take off lands inside the spring-break weeks or after them. Our verdict goes to April, with October close behind and July the month that needs a plan for the afternoons.

On this page

• The twelve-month numbersHighs, lows, rain days and sea temperature
• The single best month to bookApril, and the case against May
• When the Gulf is warm enough to swimMay to October, 79.0°F and above
• The quiet weeks on the calendarAfter Labor Day, and early December
• The month to think hardest aboutJuly: 9.73 inches over 12.6 wet days
• Is October or November worth itThe shoulder trade, daylight included

Most Clearwater trips run as a long weekend or a full beach week, flown into St Pete–Clearwater (PIE) or Tampa International (TPA) and driven west to the sand. The statewide frame, dry season against wet season, sits in when to visit Florida. This one is local, month by month.

Clearwater weather month by month: highs, lows, rain and sea

From October through May, no month tops 4.5 days at 0.10 inch or more and none reaches 3 inches of precipitation. June through September sits in another climate altogether: 8.6 to 12.6 wet days apiece, and totals from 6.40 to 9.73 inches. Temperature moves on a far gentler curve, from 70.6°F afternoons in January to 90.6°F in August, and the nights never get properly cold, with 52.5°F the lowest monthly average of the twelve.

The flip happens between May and June. May averages 2.73 inches over 4.2 wet days, June 8.86 inches over 10.7, more than triple the rain in thirty days. The return is just as abrupt at the other end: September’s 6.40 inches and 8.6 wet days give way to 2.49 inches and 3.4 days in October, a drop of 3.91 inches, and the Gulf is still holding 79.0°F when it happens.

July is the hardest month of the twelve, and it is hard for one specific traveler: the one whose days run outdoors and away from water. Count 12.6 days at 0.10 inch or more, 2.8 of them at a full inch, under afternoons averaging 90.3°F with lows that stop at 75.9°F. A family working a pool, a beach and an air-conditioned afternoon barely registers it. A cyclist planning midday miles will. The detail belongs to Clearwater in July.

Every figure here comes from NOAA’s 1991-2020 normals recorded at St Petersburg International Airport (PIE), a station between St. Petersburg and Clearwater and on the bay side rather than the Gulf. That gap falls on the afternoon maximum and barely touches the overnight low, so read the highs as a bay-side measurement, not a beach one. Sea temperature comes from a different source entirely: the Open-Meteo Marine API, averaged over 2015-2024.

When is the best time to visit Clearwater?

April. Afternoons average 81.8°F, dawn sits at 64.2°F, rain totals 2.57 inches across 3.1 days at 0.10 inch or more, and the Gulf has already climbed to 76.5°F. Daylight runs 12 hours 54 minutes on April 15, long enough for a morning on the sand, a museum hour in St. Petersburg and a sunset with time to spare.

May brings warmer water, 82.5°F against April’s 76.5°F, and asks 5.3°F more afternoon heat for it at 87.1°F, plus an extra wet day, 4.2 against 3.1. March runs cooler in the water than most visitors expect, 73.1°F, and its middle weeks carry the spring-break calendar. April threads between the two.

Week-by-week detail lives on Clearwater in April, with March and May alongside for anyone whose dates will not move. Flights land at PIE or TPA, and the beaches sit west of both, which makes a car the simple answer (our Florida driving guide covers the tolls).

When can you swim in Clearwater? Sea temperature month by month

The Gulf clears 79°F from May through October: 82.5°F in May, 86.3 in June, 89.9 in July, 89.3 in August, 86.8 in September and 79.0 in October. April misses at 76.5°F, warm enough for most swimmers and cool enough to notice on the first step in. Below that the water falls quickly, 73.5°F in November and 65.5 in December, down to 61.7°F in January, the floor of the year. March, at 73.1°F, matches November almost exactly.

One nuance changes how those readings should be used. They are the mean of DAILY MAXIMA from the Open-Meteo Marine API over 2015-2024, not a 24-hour average, so each figure sits a shade above what the Gulf holds at sunrise. October’s 79.0°F is an afternoon number, and a January swim starts colder than 61.7°F suggests.

When is Clearwater quietest?

Quiet here is a calendar fact, not a price we hold data for. The weeks between Labor Day and Thanksgiving thin out first, then the opening days of December ahead of the holiday arrivals, then the run from late April into May once the spring-break weeks have finished.

November is the reward in that stretch: 1.64 inches over 2.5 wet days, the lowest totals of the twelve months, with afternoons at 77.2°F and a Gulf still at 73.5°F. September keeps the warmest water of the quiet season at 86.8°F, and December afternoons average 72.8°F, shirtsleeve weather for a long walk on the sand.

What that costs is easy to name. September carries 6.40 inches over 8.6 wet days and sits inside the Atlantic hurricane season, which runs June 1 to November 30 across the whole state. December 15 gives only 10 hours 25 minutes of daylight, the shortest of the year, and by then the water has dropped to 65.5°F, cold enough to end swimming for all but the determined.

Which month should you avoid in Clearwater?

July carries 9.73 inches of rain over 12.6 days at 0.10 inch or more, 2.8 of them at a full inch. Afternoons average 90.3°F and the night gives back only to 75.9°F, with August’s 76.3°F barely different. For a traveler whose plan is a kayak trip, a long ride on the Pinellas Trail or a day of walking, that combination is the year’s worst hand.

July also holds the warmest water of the year at 89.9°F and 13 hours 47 minutes of daylight on the 15th. Rain in that month arrives in short heavy bursts rather than gray days: 2.8 of the 12.6 wet days hit an inch or more. A pool-and-Gulf week with an indoor afternoon survives it comfortably, and a family trip often lands there anyway because school does the booking.

Is the shoulder season worth it in Clearwater?

October and November are the shoulder. October runs 84.2°F in the afternoon against April’s 81.8°F, a 2.4°F edge, with the Gulf at 79.0°F against April’s 76.5°F. November’s 1.64 inches undercut March’s 2.43 by nearly a third, and its 2.5 wet days are the fewest on the twelve-month record.

Dry warmth outside the peak weeks is what the shoulder adds: 3.4 wet days in October and 2.5 in November, against 4.2 in May and 4.5 in January. Swimming holds through October, and November’s 77.2°F afternoons suit Honeymoon Island and the Pinellas Trail far better than an August morning does.

The shoulder takes back daylight. November 15 gives 10 hours 48 minutes against 12 hours 54 on April 15, a loss of 2 hours 6 minutes, with the sun down at 5:39 p.m. local. Water follows the same slope, 73.5°F in November and 65.5 by December. And the hurricane season does not close until November 30.

Take October if swimming is the point: 79.0°F water, 3.4 wet days, 84.2°F afternoons. Take November if the trip is built on walking, cycling and shelling, and accept the 5:39 p.m. sunset as the price of 1.64 inches of rain. Anyone who wants both warm water and long evenings is back at April.

The last word

Book April if the dates are yours to choose, October if the water decides everything, and treat July as a trip built around shade and a pool. Then pack a fleece regardless: January averages 0.3 nights at or below 32°F and December 0.1, rare but real, and April itself starts the day at 64.2°F before the sand warms up. The Gulf is patient about all of it.

Sources & data for this guide

• Monthly air normals 1991-2020, station USW00012873, St Petersburg International Airport (PIE) · NOAA NCEI · checked Sep 12, 2026
• Rain-day counts at 0.10 inch and at 1 inch, and nights at or below 32°F · NOAA NCEI 1991-2020 · checked Sep 12, 2026
• Sea surface temperature, mean of daily maxima 2015-2024 · Open-Meteo Marine API · checked Sep 12, 2026
• Daylight length, sunrise and sunset on the 15th of each month, converted to local time · sunrise-sunset.org · checked Sep 12, 2026
• Atlantic hurricane season dates, June 1 to November 30 · NOAA National Hurricane Center · checked Sep 12, 2026
• Quiet-week patterns are editorial, read off the school and holiday calendar: we hold no price series for Clearwater and rank no month as cheapest.