2025 Compare Climate & Weather:
St. Petersburg, FL vs Sanibel, FL

Highlights

On average, there are 262 sunny days per year in Sanibel. St. Petersburg averages 248 sunny days per year. The US average is 205 sunny days.

Sanibel, Florida gets 53.8 inches of rain, on average, per year. St. Petersburg, Florida gets 50.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sanibel averages 0 inches of snow per year. St. Petersburg averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sanibel, Florida
Summer High: the July high is around 91.7 degrees
Winter Low: the January low is 53.4
Rain: averages 53.8 inches of rain a year
Snow: averages 0 inches of snow a year

St. Petersburg, Florida
Summer High: the July high is around 90.4 degrees
Winter Low: the January low is 52.5
Rain: averages 50.7 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Sanibel is 6.4 (10=best), which means it is less comfortable than most places in Florida.

The annual BestPlaces Comfort Index for St. Petersburg is 6.7 (10=best), which means it is less comfortable than most places in Florida.

Today's Weather - St. Petersburg, FL

74°F

Today's Weather - Sanibel, FL

73°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. Petersburg / Sanibel

August is the hottest month for St. Petersburg with an average high temperature of 90.4°, which ranks it as cooler than most places in Florida. In St. Petersburg, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Petersburg are November, March and April.

July is the hottest month for Sanibel with an average high temperature of 91.7°, which ranks it as warmer than most places in Florida. In Sanibel, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sanibel are February, December and March.

January has the coldest nighttime temperatures for St. Petersburg with an average of 52.5°. This is warmer than most places in Florida.

January has the coldest nighttime temperatures for Sanibel with an average of 53.4°. This is warmer than most places in Florida.

In St. Petersburg, there are 73.1 days annually when the high temperature is over 90°, which is about average compared to other places in Florida.

In Sanibel, there are 103.5 days annually when the high temperature is over 90°, which is hotter than most places in Florida.

In St. Petersburg, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Florida.

In Sanibel, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Florida.

In St. Petersburg, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Florida.

In Sanibel, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Florida.

August is the wettest month in St. Petersburg with 8.2 inches of rain, and the driest month is November with 1.8 inches. The wettest season is Autumn with 45% of yearly precipitation and 16% occurs in Summer, which is the driest season. The annual rainfall of 50.7 inches in St. Petersburg means that it is drier than most places in Florida.


June is the wettest month in Sanibel with 9.4 inches of rain, and the driest month is December with 1.6 inches. The wettest season is Autumn with 50% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 53.8 inches in Sanibel means that it is about average compared to other places in Florida.

August is the rainiest month in St. Petersburg with 15.4 days of rain, and April is the driest month with only 4.8 rainy days. There are 101.8 rainy days annually in St. Petersburg, which is one of the least rainy places in Florida. The rainiest season is Autumn when it rains 42% of the time and the driest is Summer with only a 16% chance of a rainy day.

August is the rainiest month in Sanibel with 17.3 days of rain, and April is the driest month with only 4.7 rainy days. There are 113.0 rainy days annually in Sanibel, which is about average compared to other places in Florida. The rainiest season is Autumn when it rains 44% of the time and the driest is Spring with only a 15% chance of a rainy day.

There is rarely any recorded snowfall in St. Petersburg, ranking it as one of the least snowy places in Florida.

There is rarely any recorded snowfall in Sanibel, ranking it as one of the least snowy places in Florida.

Any measurable snowfall is a rare occurance in St. Petersburg.

Any measurable snowfall is a rare occurance in Sanibel.