The best times to visit Treasure Island for ideal weather are
October 29th to April 22nd
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Treasure Island Travel Guide
Other Treasure Island Travel Info
Weather in Treasure Island
Average temperatures in Treasure Island vary somewhat. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is somewhat temperate — in the 48th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Treasure Island, the hottest months are August, July, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid August where highs are regularly around 90.7°F (32.6°C) with temperatures rarely dropping below 79.3°F (26.3°C) at night.
Treasure Island Temperatures (Fahrenheit)
Treasure Island Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Treasure Island Perceived Temperature (F)
Treasure Island Perceived Temperature (C)
Average Treasure Island Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Treasure Island are November, April, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid May. For example, on the week of May 7th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early July with an average of 3 days of significant precipitation the week of July 2nd.
When can you find snow in Treasure Island? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Treasure Island.
Snow on the Ground
The graph below shows the average snow on the ground in Treasure Island (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Treasure Island has some very humid months, and above average humidity throughout the year. The least humid month is May (60.3% relative humidity), and the most humid month is December (71.6%).
Wind in Treasure Island is usually moderate. The windiest month is May, followed by October and November. May’s average wind speed of around 8.3 knots (9.5 MPH or 15.3 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid to late August where average top sustained speeds reach 17 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Treasure Island.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||7.1||Gentle breeze||13||Significant breeze|
|Feb||7.2||Gentle breeze||13.1||Significant breeze|
|Mar||8.1||Gentle breeze||14.2||Significant breeze|
|Apr||8.1||Gentle breeze||14.4||Significant breeze|
|May||8.3||Gentle breeze||15.1||Significant breeze|
|Jun||7.2||Gentle breeze||15.5||Significant breeze|
|Jul||6.2||Light breeze||14.6||Significant breeze|
|Aug||6.8||Light breeze||15.8||Significant breeze|
|Sep||7.8||Gentle breeze||15.3||Significant breeze|
|Oct||8.2||Gentle breeze||13.9||Significant breeze|
|Nov||8.1||Gentle breeze||13.6||Significant breeze|
|Dec||7.2||Gentle breeze||12.7||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Treasure Island?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Treasure Island, FL, US is March, followed by February and January. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Treasure Island in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Treasure Island Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 88.9°F (31.6°C) and 72.6°F (22.6°C) with warmer temperatures in the later months. Rain is rare with 3 to 4 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 9 to 12 days of precipitation per month. June – August is fairly slow season for tourism in Treasure Island, so lodging and other accommodations may cost slightly less.
Fall (September through November)
Fall daily highs range from 89.8°F (32.1°C) and 74.5°F (23.6°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 3 to 10 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is somewhat cool this time of year in Treasure Island to be enjoyable for warm weather travelers. The average high during this season is between 74.2°F (23.4°C) and 68.5°F (20.3°C). On average, it rains or snows a smalll amount: 3 to 4 times per month. These times of year are the second busiest with tourists.