St Petersburg weather in August 2025

Q: How hot is it in St Petersburg in August?

Daytime temperatures usually reach 32°C in St Petersburg in August with very high heat and humidity, falling to 23°C at night.

Q: How sunny is it in St Petersburg in August?

There are normally 8 hours of bright sunshine each day in St Petersburg in August - that's 63% of daylight hours.

Q: How warm is the sea around St Petersburg in August?

The average sea temperature around St Petersburg in August is 30°C.

Q: Does it rain in St Petersburg in August?

There are usually 17 days with some rain in St Petersburg in August and the average monthly rainfall is 185mm.

Q: What is the chance of a cyclone in St Petersburg in August?

On average 1.2 days in August in St Petersburg are likely to be affected by the passage of one or more tropical storms.

Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Petersburg in August. Check more long-term weather averages for St Petersburg in August before you book your next holiday to Florida in 2025/2026.

90
90°F max day temperature
8
8 hours of sunshine per day
17
17 days with some rainfall
73
73°F min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
7.3
7.3 inches of monthly rainfall
11
11 (Extreme) UV index
86
86°F sea temperature

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Destination

The August weather guide for Florida (St Petersburg) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about Florida

How hot is it in St Petersburg in August?

Daytime temperatures usually reach 90°F in St Petersburg in August with very high heat and humidity, falling to 73°F at night.

How sunny is it in St Petersburg in August?

There are normally 8 hours of bright sunshine each day in St Petersburg in August - that's 63% of daylight hours.

How warm is the sea around St Petersburg in August?

The average sea temperature around St Petersburg in August is 86°F.

Does it rain in St Petersburg in August?

There are usually 17 days with some rain in St Petersburg in August and the average monthly rainfall is 7.3 inches.

What is the chance of a hurricane in St Petersburg in August?

On average 1.2 days in August in St Petersburg are likely to be affected by the passage of one or more tropical storms.

St Petersburg August sunrise & sunset times

Browse the sunrise and sunset times for St Petersburg in August 2025. Select a month to view St Petersburg sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Friday, 1st August 2025	05:54	19:20
Saturday, 16th August 2025	06:02	19:07
Sunday, 31st August 2025	06:09	18:52

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Florida - quick facts
Flight time^✝	9.5 hours
Time difference	UK -5 to -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Visit Florida