WARM MINERAL SPRINGS · FLORIDA · 1991-2020 NORMALS
The question arrives long before the trip does: which month to drive down to Warm Mineral Springs. The air gives a clean answer. At Sarasota Bradenton airport, the nearest official thermometer, average highs run from 72.5°F in January to 91.5°F in August, and rainfall from 1.81 inches in November to 9.11 inches in August. Everything a visitor feels between the parking lot and the water sits inside that spread.
The water itself is another matter. The NOAA record used here measures air, at an airport about 27 miles (44 km) from the spring, and it carries no water temperature for the pool, no humidity reading and no visitor count. We quote none of those rather than guess at them.
THE YEAR AT A GLANCE · WARM MINERAL SPRINGS
April is the pick: 82.5°F afternoons, 2.46 inches of rain over three wet days, and the hurricane calendar still shut until June 1.
AIR NORMALS 1991-2020 · SARASOTA BRADENTON AP, 27 MILES AWAY · WET SEASON JUN-SEP
Go for: April and late October, when afternoons run in the 80s, monthly rain sits near 2.5 inches and the Gulf beaches are inside the same rental car.
Think twice before: booking August, which averages 9.11 inches of rain across 11.7 wet days, with nights that hold at 75.3°F.
Air: NOAA NCEI 1991-2020 normals · Daylight: sunrise-sunset.org · full sources at the end
On this page
- Every month’s highs, lows and rain daysThe twelve-month table
- The best month to bookApril, at 82.5°F and 2.46 inches
- Summer heat and nights that stay at 75°FJune to September
- The quiet weeks on the Florida calendarSeptember and early December
- The month to skip, and for whomAugust, 9.11 inches of rain
- Shoulder months worth a long weekendMay and October, with their gaps to April
The month decides how warm the walk back to the car feels, how many days of your trip carry measurable rain, and how long the light lasts afterward. April and November both stay under 2.5 inches of rain, at 2.46 and 1.81, and they sit two hours apart in daylight: 12 hours 52 minutes on April 15 against 10 hours 51 minutes on November 15.
Warm Mineral Springs weather month by month: highs, lows and rainfall
| Month | Avg high | Avg low | Rain | Wet days (0.10 in+) | Daylight (15th) |
|---|---|---|---|---|---|
| January | 72.5°F | 52.3°F | 2.79 in | 3.6 | 10h40 |
| February | 74.9°F | 54.6°F | 1.92 in | 3.1 | 11h17 |
| March | 78.2°F | 58.1°F | 2.85 in | 3.6 | 12h03 |
| April | 82.5°F | 62.7°F | 2.46 in | 3.0 | 12h52 |
| May | 87.5°F | 68.2°F | 2.58 in | 3.8 | 13h32 |
| June | 90.0°F | 73.6°F | 7.05 in | 9.0 | 13h53 |
| July | 91.1°F | 75.2°F | 7.39 in | 10.7 | 13h43 |
| August | 91.5°F | 75.3°F | 9.11 in | 11.7 | 13h08 |
| September | 90.2°F | 74.1°F | 6.00 in | 8.3 | 12h21 |
| October | 86.3°F | 68.3°F | 2.76 in | 4.1 | 11h33 |
| November | 80.0°F | 60.1°F | 1.81 in | 2.5 | 10h51 |
| December | 75.2°F | 55.2°F | 2.33 in | 3.0 | 10h29 |
Eight months of the year stay under 3 inches of rain, from November’s 1.81 to March’s 2.85, while June, July, August and September each carry 6.00 inches or more. Temperature moves less violently than that: the gap between the coldest average high (72.5°F in January) and the hottest (91.5°F in August) is 19 degrees, and no month averages a high below 72°F.
June is where the switch is thrown. May records 2.58 inches over 3.8 wet days, and June jumps to 7.05 inches over 9.0, an increase of 4.47 inches in a single step. October runs the process backward: 2.76 inches over 4.1 days, against September’s 6.00 inches over 8.3.
August is the hardest month for anyone traveling to a schedule. It posts 91.5°F by day and 75.3°F at night, with 9.11 inches of rain across 11.7 wet days, of which 2.2 deliver an inch or more. A family timing a midday swim, a driver covering distance, and anyone whose trip has one fixed outdoor afternoon all pay for that combination.
Every figure here comes from NOAA’s 1991-2020 monthly normals at station USW00012871, Sarasota Bradenton AP, about 27 miles (44 km) from the spring. Those are thirty-year averages of air temperature and precipitation taken at an airport, not readings from the pool. A wet day means a calendar day that recorded at least 0.10 inch, so lighter showers never enter the count.
When is the best time to visit Warm Mineral Springs?
April, and by a comfortable margin. Average high 82.5°F, average low 62.7°F, 2.46 inches of rain spread over 3.0 wet days, and 12 hours 52 minutes of daylight on the 15th with sunset at 7:54 p.m. local. The Atlantic hurricane season does not open until June 1, so an April booking is one of the few Florida trips that needs no storm hedge.
March runs 4.3°F cooler by day at 78.2°F and wetter at 2.85 inches over 3.6 days, and its middle weeks are Florida’s spring break. May pushes the other way: 87.5°F afternoons, nights that stop falling below 68.2°F, and 3.8 wet days. Of the three, April carries the lowest wet-day count.
The statewide version of the same argument, including the November to April dry season and the hurricane calendar that closes on November 30, sits in our Florida calendar. If April is your window, the flights guide sorts which airport to fly into and where to stay puts the Gulf coast in reach of the same rental car. Add a beach day at Siesta Key and two nights cover both (est.).
How hot does Warm Mineral Springs get in summer?
June, July, August and September all average highs of 90°F or more: 90.0, 91.1, 91.5 and 90.2 respectively. The nights are the part travelers underestimate. Average lows across those four months run from 73.6°F to 75.3°F, which means the air at dawn in July is warmer than the average afternoon high in January, 72.5°F.
Humidity is missing from the record. The normals below give temperature, rainfall and freezing nights, not dewpoint or heat index, so no summer “feels like” number appears anywhere here. Rainfall is the closest proxy available: 7.39 inches in July across 10.7 wet days is a great deal of moisture, and Florida’s summer storms generally build in the afternoon.
When is Warm Mineral Springs quietest?
The quiet weeks are datable from the calendar. Florida’s wet season runs May through October, the hurricane season June 1 to November 30, and the school summer fills mid-June to mid-August. That leaves the weeks after Labor Day and the first half of December sitting outside every national break. We carry no price or occupancy series for North Port, so no month gets called the cheapest here.
Those weeks buy length of day and elbow room. September still holds 12 hours 21 minutes of daylight with sunset at 7:34 p.m., and its rain has already fallen back from August’s 9.11 inches to 6.00. Early December turns a different dial: 75.2°F highs, 2.33 inches over 3.0 wet days, and the storm calendar shut on November 30.
What you give up is named. September carries 8.3 wet days, 1.9 of them at an inch or more, and the statistical peak of the hurricane season around September 10, which is why fall bookings should stay refundable. December pays in light instead: 10 hours 29 minutes on the 15th, sunset at 5:39 p.m., and 0.3 nights at or below 32°F.
Which month should you avoid at Warm Mineral Springs?
August is hardest on anyone whose day contains a fixed outdoor hour: families with a midday plan, drivers covering distance, photographers waiting on light. The month averages 91.5°F highs, 75.3°F lows, 9.11 inches of rain and 11.7 days at 0.10 inch or more, with 2.2 of those delivering an inch or more in a single day. That rainfall total is five times November’s 1.81 inches.
Long evenings hold through it: 13 hours 08 minutes of light on August 15, sunrise at 6:59 a.m. and sunset at 8:07 p.m., which leaves room on either side of an afternoon storm. Subtract the 2.2 heavy days and roughly nine and a half wet days record less than an inch. A traveler who treats the water as the point of the trip, rather than the drive or the beach day, loses little in August.
Is the shoulder season worth it at Warm Mineral Springs?
May and October are the shoulders. October runs 3.8°F warmer by day than April (86.3°F against 82.5°F) and 5.6°F warmer at night (68.3°F against 62.7°F), with 2.76 inches of rain over 4.1 wet days. May sits 5.0°F above April by day at 87.5°F, with 2.58 inches over 3.8 days.
May holds the longest evenings of the two: 13 hours 32 minutes of daylight on the 15th, sunset at 8:11 p.m., a full 40 minutes more light than April. October trades on the collapse of the summer rain instead, 2.76 inches against September’s 6.00 and 4.1 wet days against 8.3, while keeping afternoons at 86.3°F rather than December’s 75.2°F.
The subtraction is daylight and certainty. October gives 11 hours 33 minutes on the 15th, an hour and 19 minutes less than April, with sunset at 7:01 p.m., and it sits inside the hurricane season that closes November 30. May opens before June 1 and stays clear of that calendar, but its nights hold at 68.2°F, 5.5 degrees above April’s.
Take October for a long weekend, May for a full week. October’s rain is back at April levels and the afternoons are warmer, provided the booking stays refundable until the storm season ends. May costs 5.0°F of afternoon heat against April and returns 40 minutes of evening light, which suits anyone arriving late in the day with one swim left in them.
The last word
The decision is short. April if the trip is fixed months ahead, October if it is opportunistic and refundable, August only if the water is the whole reason you are driving. One figure has not been served yet: an average January records 0.8 nights at or below 32°F and December 0.3, the only freezing nights in the record alongside February’s 0.1. Pack a fleece for the walk back to the car at dawn, and book the nights before the weekend rather than after.
Sources & data for this guide
- Monthly air normals 1991-2020, station USW00012871, Sarasota Bradenton AP, about 27 miles (44 km) from the spring · NOAA NCEI · checked Sep 12, 2026
- Sunrise, sunset and daylight length on the 15th of each month, converted to local time · sunrise-sunset.org · checked Sep 12, 2026
- Hurricane season dates (June 1 to November 30) and the Sept 10 statistical peak · NOAA National Hurricane Center · checked Sep 12, 2026
- Editorial admission: the water temperature of the spring itself, humidity and heat index, and any visitor or price series are absent from the record used here. We quote none of them.
- Park hours, access rules and closures change · check the park operator before you drive.