Best Time to Visit Weeki Wachee Springs: Month-by-Month Highs, Lows, Rain Days and the Swim Season

WEEKI WACHEE SPRINGS · BEST TIME TO VISIT · FLORIDA

The water has no season at Weeki Wachee Springs, so the month you pick never changes the swim. It changes everything around it: the air you dry off in, the odds of an afternoon storm, the hour the light goes. Twenty-seven miles inland at the Brooksville gauge, average highs run from 70.7°F in January to 90.9°F in August, and monthly rainfall from 1.59 inches in November to 9.41 inches in July.

April is the answer for most trips: 82.8°F afternoons, 2.18 inches of rain across 3.4 measurable days, sunset at 7:57 pm on the 15th. Summer travelers get the longest daylight and the bill that comes with it, 13.1 rain days in July. Winter visitors get 77.9°F November weekdays and, by January, 44.3°F mornings.

On this page

• Month-by-month highs, lows and rain daysThe twelve-month table
• The single best month to plan aroundApril, 82.8°F and 2.18 in
• How hot July and August get90.6°F days, 72.1°F nights
• The quietest weeks of the yearNovember and the in-session school weeks
• The month to avoid, and for whomAugust on land
• Shoulder months worth bookingHow May and October compare
• Florida’s seasons state-wideThe state calendar

Weeki Wachee Springs is a Florida state park on the Gulf side north of Tampa: the underwater mermaid theater, the swimming area on the spring run, and a river paddle that starts at the source. What moves from month to month is the air, the rain and the daylight, plus the school weeks that fill the parking lot. The spring itself does not move at all.

Weeki Wachee Springs weather month by month: highs, lows and rainfall

Two different years live in that rain column. From November through May, no month tops 3.35 inches or 4.4 measurable rain days. From June through September, the lowest figure is 5.79 inches over 8.1 days, and July alone carries nearly six times November’s rainfall.

The switch happens between May and June, well before the heat peaks. May averages 3.35 inches over 4.4 rain days; June jumps to 7.91 inches over 10.9, while the average high moves only 2.1°F. The reverse swing belongs to October: September’s 5.79 inches fall to 2.79, rain days drop from 8.1 to 4.0, and afternoons cool 5.0°F.

July is the hardest month for anyone whose day includes standing on land. Some 13.1 days record at least 0.10 inch of rain and 2.9 of them an inch or more, on top of 90.6°F afternoons and nights that stop at 72.0°F. A swimmer already in the spring run feels none of that as a problem, since the rain lands warm and the water underneath is unchanged. It is families booking a full park day, with a show, a picnic and a paddle, who lose the most to the pattern.

Every figure here comes from NOAA’s 1991-2020 normals for BROOKSVILLE HERNANDO CO AP, station USW00012818, about 27 miles (44 km) from the spring, and each one describes the AIR. The spring water has no season, so none of these numbers applies to it. Read the normals here as the weather you will dry off in, not the temperature you will swim in, and remember that a thirty-year average is not a forecast for your Saturday.

When is the best time to visit Weeki Wachee Springs?

April is the month to plan around. Average highs of 82.8°F, lows of 55.7°F, 2.18 inches of rain (second-driest of the twelve months, behind November alone), 3.4 days with measurable rain, and on the 15th about 12 hours 55 minutes of daylight with sunset at 7:57 pm. Warm enough that a wet swimsuit is comfortable on the walk back to the car, dry enough that an afternoon plan holds.

March runs 5.2°F cooler by day, 77.6°F against 82.8°F, and still averages 1.4 nights at or below freezing where April averages 0.1. Cool air plus unheated spring water makes for a short swim. Go the other way and May adds 5.3°F of heat and 1.17 inches of rain, its 4.4 rain days being the first trace of the summer pattern.

Two booking habits follow. Weekdays beat weekends in April, since Florida’s spring-break weeks land in March and Easter floats into April in some years, and we hold no attendance figures for the park to sharpen that any further. If April is already spoken for, the wider state picture is in our Florida timing guide, and the winter manatee season up the same coast has its own window in the manatee guide.

How hot does Weeki Wachee Springs get in summer?

Summer afternoons average 90.2°F in June, 90.6°F in July and 90.9°F in August, a three-month plateau inside a single degree. Travelers underestimate the nights: average lows of 69.9°F, 72.0°F and 72.1°F mean the parking lot is still warm after dark. Daylight pays part of that back, about 13 hours 49 minutes on July 15 with sunset at 8:30 pm, long enough for a second swim after an early dinner.

One number that would settle the summer argument is missing. The normals we read carry temperature and precipitation only, not dew point, relative humidity or heat index, so the figure that explains why 90.9°F in Hernando County is harder work than the same reading in a dry climate is not one we can quote. Treat the August high as a floor for discomfort rather than a ceiling, and keep land time for mornings.

When is Weeki Wachee Springs quietest?

Quiet here is a calendar question, and we hold no gate counts for the park to rank the months by. The weeks with no school holiday in them run from after Labor Day to the December break, then from mid-January to spring break. Weather backs the first stretch: November averages 1.59 inches of rain over 3.0 measurable days, both the lowest figures of the year, under 77.9°F afternoons.

A November weekday buys the driest air the calendar offers, 77.9°F by day and 52.3°F at night, and that inch and a half spread over three days means an afternoon plan rarely needs rewriting. Show, paddle and picnic fit into one visit without racing a storm front. December sits close behind on rain, 2.56 inches over 3.4 days, once you stay clear of the holiday weeks.

You pay for it in daylight. Sunset on November 15 falls at 5:37 pm local, closing a day of 10 hours 46 minutes, and December 15 is shorter still at 10 hours 23. Cold arrives with the quiet: the Brooksville gauge averages 1.0 freezing night in November, 3.4 in December and 5.4 in January. We could not confirm the seasonal operating schedule of the park’s swimming area, so check the state park before driving out for a winter swim.

Which month should you avoid at Weeki Wachee Springs?

August is the month to skip if your day sits on land. Afternoons average 90.9°F, the high mark of the year, nights bottom out at 72.1°F, and 8.12 inches of rain arrive across 12.3 measurable days, 2.7 of them an inch or more. Strollers, picnic tables, a queue for the theater and a shadeless lot all get harder in that combination. For a swimmer in the water by ten and out by two, August is barely a month at all: the spring reads the same as it does in February.

The same month carries about 13 hours 11 minutes of daylight on the 15th, sunset at 8:10 pm, so an early arrival and a long evening both work. Florida’s summer rain runs to an afternoon pattern, and 2.7 days at an inch or more account for at least a third of August’s total, which is a different thing from all-day gray. Late summer is also Atlantic hurricane season across the state, and our Florida calendar carries the dates.

Is the shoulder season worth it at Weeki Wachee Springs?

May and October sit on the edges of the wet season and stay well clear of it on rain. October averages 2.79 inches over 4.0 days at 84.5°F, against July’s 9.41 inches over 13.1 days at 90.6°F, a gap of 6.1°F and nine rain days. May runs 3.35 inches over 4.4 days under 88.1°F afternoons.

October gives back the nights. Lows fall from 70.1°F in September to 61.7°F, an 8.4°F drop, so an evening at a picnic table is pleasant rather than endured, and sunset at 7:01 pm on the 15th still leaves an hour after the swim. May’s advantage runs the other way: 62.6°F mornings under 88.1°F afternoons put an early paddle and a midday swim in the same day.

What the shoulder removes is light and margin. October 15 carries 11 hours 31 minutes of daylight against July 15’s 13 hours 49, two hours and eighteen minutes less water time per day. May takes its cut from reliability: 4.4 rain days already exceed April’s 3.4, and June’s count is 10.9, so a late-May trip is exposed if the pattern starts early.

Take October unless your dates are fixed to a school schedule. It runs 3.6°F cooler by day than May, 0.56 inch drier, 0.4 of a rain day fewer, and it follows the wet season instead of leading into it, so the risk curve is falling rather than rising. May’s single argument is the calendar, landing before the summer breaks. Given a free choice, book the second half of October and keep April as the first pick of the year.

The last word

Put April first, late October second, and November weekdays third for anyone willing to trade daylight for the driest air on the table. One figure not yet served: January averages 5.4 nights at or below 32°F at the Brooksville gauge, against 2.8 in February. The spring is unchanged on those mornings, and you are not, so pack a towel big enough to wrap up in and a warm layer for the walk back to the car, whatever month the ticket says.

Sources & data for this guide

• Monthly air normals 1991-2020 (highs, lows, precipitation, days at 0.10 in and 1.00 in, freezing nights) · NOAA NCEI, station USW00012818, BROOKSVILLE HERNANDO CO AP, FL US, about 27 miles (44 km) from the spring · checked Sep 13, 2026
• Sunrise, sunset and daylight length on the 15th of each month · sunrise-sunset.org, UTC times converted to local · checked Sep 13, 2026
• Spring water temperature: our source states only that the spring water has no season, so no water figure is quoted here.
• Humidity, dew point and heat index: not carried by the normals we read, so no summer comfort index appears above.
• Visitor numbers: we hold no attendance or gate counts for Weeki Wachee Springs State Park, so the quiet-month reading is calendar reasoning, not a count.
• Park operations (show times, the swimming area’s seasonal schedule, fees) change · confirm with the Florida state park before you travel.