Temperature
Warm by day, warm at night.
84°Ftypical September high
Typical range
September climate
September in St. Petersburg
United States · North America
Warm days and some sun. Heavier storm-season rain and humid air are the main drawbacks.
Some tradeoffs
Late
Daytime high
84°F
Lows around 78°F
Rain
Frequent rain
Sun
10 h/day
Air feel
Very humid
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 15 wet days, more than in most months.
51%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
10.1 hSeptember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
76%September Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 86° and nights feel near 83°.
ColdCoolComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
43%September Clear sky
Clear skyCloud
Wind pattern
September's typical breeze keeps the air from feeling as stagnant.
10 mphSeptember Breezy
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 82°F, and early evening stays near 81°F.
Avg temp Typical range
Morning81°F
Feels 85°F
Rain26%
Cloud55%
Humid airVery high
Sun intensityModerate
Midday83°F
Feels 87°F
Rain29%
Cloud57%
Humid airVery high
Sun intensityStrong
Late afternoon82°F
Feels 86°F
Rain34%
Cloud61%
Humid airVery high
Sun intensityLow
Early evening81°F
Feels 85°F
Rain23%
Cloud63%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 65 | 57 | 2.6 | 6 | 8.8 | 77 |
| Feb | 66 | 59 | 2.2 | 6 | 9.3 | 79 |
| Mar | 69 | 63 | 2.4 | 6 | 10.2 | 76 |
| Apr | 74 | 68 | 1.8 | 6 | 11.6 | 75 |
| May | 80 | 74 | 2.1 | 6 | 12.2 | 75 |
| Jun | 83 | 78 | 5.0 | 15 | 11.5 | 78 |
| Jul | 84 | 80 | 5.2 | 19 | 11.5 | 79 |
| Aug | 85 | 80 | 5.8 | 20 | 11.2 | 79 |
| Sep | 84 | 78 | 5.3 | 15 | 10.1 | 79 |
| Oct | 79 | 73 | 2.3 | 7 | 9.8 | 75 |
| Nov | 73 | 65 | 1.5 | 4 | 9.3 | 76 |
| Dec | 68 | 60 | 2.2 | 6 | 8.6 | 78 |
Similar climates
Similar
Similar travel styleHong KongChinaSimilar travel styleMiamiUnited StatesSimilar travel styleMexico CityMexicoSimilar travel styleHoustonUnited States
Want a side-by-side climate view? Compare St. Petersburg with Hong Kong.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology