St. Petersburg, FL Weather by Month and Climate Averages

How much rain does St. Petersburg get?

St. Petersburg gets 46.6 in of precipitation in an average year, spread over about 108 days with measurable rain. That is more rainy days than 67% of the US.

August is the wettest month, with 8.4 in. November is the driest, with 1.5 in. August has the most rainy days, about 17.

The longest dry spell in the last five years lasted 29 days, to May 10, 2024.

See where St. Petersburg ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Florida.

St. Petersburg weather by month

St. Petersburg weather in January

In January, St. Petersburg averages a high of 69°F and a low of 55°F. It gets 2.5 in of precipitation over about 8 rainy days. The sun is out about 46% of daylight hours. The January record high is 85°F (2026) and the record low is 32°F (2018). January is one of the most comfortable months to visit.

St. Petersburg weather in February

In February, St. Petersburg averages a high of 72°F and a low of 58°F. It gets 2.0 in of precipitation over about 7 rainy days. The sun is out about 55% of daylight hours. The February record high is 85°F (2018) and the record low is 36°F (2026). February is one of the most comfortable months to visit.

St. Petersburg weather in March

In March, St. Petersburg averages a high of 76°F and a low of 63°F. It gets 2.6 in of precipitation over about 6 rainy days. The sun is out about 56% of daylight hours. The March record high is 91°F (2026) and the record low is 42°F (2002). March is one of the most comfortable months to visit.

St. Petersburg weather in April

In April, St. Petersburg averages a high of 81°F and a low of 68°F. It gets 1.9 in of precipitation over about 5 rainy days. The sun is out about 54% of daylight hours. The April record high is 94°F (2026) and the record low is 49°F (2000).

St. Petersburg weather in May

In May, St. Petersburg averages a high of 86°F and a low of 73°F. It gets 2.3 in of precipitation over about 6 rainy days. The sun is out about 62% of daylight hours. The May record high is 96°F (2026) and the record low is 57°F (1999).

St. Petersburg weather in June

In June, St. Petersburg averages a high of 89°F and a low of 77°F. It gets 6.8 in of precipitation over about 13 rainy days. The sun is out about 40% of daylight hours. The June record high is 98°F (2010) and the record low is 67°F (2007).

St. Petersburg weather in July

In July, St. Petersburg averages a high of 90°F and a low of 78°F. It gets 7.5 in of precipitation over about 16 rainy days. The sun is out about 29% of daylight hours. The July record high is 97°F (2017) and the record low is 65°F (2023).

St. Petersburg weather in August

In August, St. Petersburg averages a high of 90°F and a low of 79°F. It gets 8.4 in of precipitation over about 17 rainy days. The sun is out about 31% of daylight hours. The August record high is 98°F (2023) and the record low is 66°F (1999).

St. Petersburg weather in September

In September, St. Petersburg averages a high of 88°F and a low of 77°F. It gets 6.7 in of precipitation over about 14 rainy days. The sun is out about 39% of daylight hours. The September record high is 96°F (2020) and the record low is 64°F (2022).

St. Petersburg weather in October

In October, St. Petersburg averages a high of 84°F and a low of 73°F. It gets 2.2 in of precipitation over about 6 rainy days. The sun is out about 55% of daylight hours. The October record high is 95°F (2024) and the record low is 51°F (2008).

St. Petersburg weather in November

In November, St. Petersburg averages a high of 77°F and a low of 64°F. It gets 1.5 in of precipitation over about 5 rainy days. The sun is out about 55% of daylight hours. The November record high is 92°F (2002) and the record low is 43°F (2025). November is one of the most comfortable months to visit.

St. Petersburg weather in December

In December, St. Petersburg averages a high of 72°F and a low of 59°F. It gets 2.4 in of precipitation over about 6 rainy days. The sun is out about 50% of daylight hours. The December record high is 85°F (2015) and the record low is 35°F (2022). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in St. Petersburg

May is the sunniest month in St. Petersburg, with sunshine about 62% of daylight hours. July is the cloudiest, at 29%. Over the year the sun shines about 48% of daylight hours. St. Petersburg is sunnier than 55% of the US.

Humidity peaks in February at 80% and is lowest in April at 75%.

Wind averages 9 mph over the year, and October is the windiest month at 10 mph.

St. Petersburg has about 72 days a year above 90°F. St. Petersburg is hotter than 81% of the US.

Thunderstorms occur on about 84 days a year.

See where St. Petersburg ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

St. Petersburg weather records

The hottest temperature on record at the St. Petersburg station is 98°F, on August 16, 2005. The coldest is 32°F, on January 24, 2003.

The wettest day on record brought 6.9 in of rain, on September 14, 2001.

The best time to visit St. Petersburg

The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 73°F.

Winter (December–February) is warm, with average highs around 71°F and lows near 58°F.

Spring (March–May) is warm, with average highs around 81°F and lows near 68°F.

Summer (June–August) is hot, with average highs around 90°F and lows near 78°F. It can feel humid.

Autumn (September–November) is hot, with average highs around 83°F and lows near 71°F.

St. Petersburg climate questions

How much rain does St. Petersburg get?

St. Petersburg gets 46.6 in of precipitation in an average year, over about 108 rainy days.

What is the wettest month in St. Petersburg?

August is the wettest month in St. Petersburg, with 8.4 in. November is the driest, with 1.5 in.

How many rainy days does St. Petersburg have a year?

St. Petersburg has about 108 days with measurable rain in an average year. August has the most, about 17.

What is the hottest month in St. Petersburg?

July is the warmest month in St. Petersburg, with an average high of 90°F.

What is the coldest month in St. Petersburg?

January is the coldest month in St. Petersburg, with an average low of 55°F.

What is the record high temperature in St. Petersburg?

The record high at the St. Petersburg station is 98°F, set on August 16, 2005. The record low is 32°F, on January 24, 2003.

What is the sunniest month in St. Petersburg?

May is the sunniest month in St. Petersburg, with sunshine about 62% of daylight hours. July is the cloudiest.

What is the best time to visit St. Petersburg?

The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 73°F.