July Weather in St. Petersburg, United States

Last updated: February 24, 2025

July in St. Petersburg, United States, heralds a warm embrace as temperatures reach a maximum of 32°C (90°F), with an average of 28°C (82°F) ensuring summer's heat is felt throughout the month. However, the backdrop of 204 mm (8.0 in) of rainfall over 25 days introduces a refreshing contrast, keeping the lush surroundings vibrant and green. With humidity levels averaging 74%, the air feels evocatively tropical, inviting both residents and visitors to relish in the city’s bustling summer atmosphere, but also reminding them to keep an umbrella handy for those sudden showers.

July Temperature in St. Petersburg

In July, St. Petersburg, United States, basks in the warmth of summer, showcasing its hottest temperatures of the year. The minimum temperature settles at a balmy 25°C (77°F), while the average rises to a pleasant 28°C (82°F), peaking at a sizzling 32°C (90°F). This month marks a noticeable shift from the milder spring temperatures, as the heat continues to build from June's warm days. Interestingly, the consistent values seen throughout July, along with the similar patterns observed in August, suggest that the city enjoys a prolonged summer atmosphere, making it an ideal time for outdoor activities and beach outings. As the temperatures maintain their height, St. Petersburg embraces the vibrant summer vibes, inviting residents and visitors alike to soak in the sun.

July Weather in St. Petersburg: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in St. Petersburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec626568737781828281787065
Data source: Temperature data for St. Petersburg generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in St. Petersburg

In July, St. Petersburg experiences its peak precipitation, with 204 mm (8.0 in) of rain falling over an impressive 25 days. This significant increase from June's 174 mm highlights a notable trend of intensifying summer rains, as July typically marks the transition into the wettest period of the year. Such persistent rainfall not only contributes to the total annual precipitation but also sets the stage for the lush landscapes that characterize the area. With nearly every day seeing some level of rainfall, residents and visitors alike are reminded to embrace the dramatic summer storms that define the vibrant atmosphere of St. Petersburg during this month.

July Precipitation Trends in St. Petersburg

The chart displays monthly precipitation patterns in St. Petersburg, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec40502060105174204219143674666
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in St. Petersburg

July in St. Petersburg, United States, sees a notable dip in humidity, averaging around 74%, the lowest for the summer months. This decline follows a gradual decrease from the 82% humidity seen in January, creating a comfortable and inviting atmosphere as the sweltering summer sets in. The trend indicates a steady drop from early spring through mid-summer, peaking in February at 82% and making way for relatively drier conditions in July and August. These factors contribute to St. Petersburg's appeal during this time, as residents and visitors alike enjoy the milder, less humid days of summer, perfect for outdoor activities and exploring the beautiful surroundings.

July Average Humidity in St. Petersburg

This chart illustrates the average monthly humidity levels in St. Petersburg, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec82%82%79%78%76%75%74%75%78%80%82%84%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in St. Petersburg

In July, St. Petersburg experiences its peak UV Index of 12, falling into the extreme exposure category, which demands caution for outdoor enthusiasts. With only 10 minutes of safe sun exposure before risking a burn, summer days in this vibrant city are a reminder of the sun’s intensity. Interestingly, the UV Index remains consistently high from April to August, with values at or above 11 during these months, signifying a trend of increasing sun strength as the summer progresses. As the year advances, the UV Index gradually declines, reaching a lower level of 9 in October, highlighting the significant seasonal shifts in sun exposure. Emphasizing sun safety is crucial during these months; for more detailed information, visit St. Petersburg UV Index.

Maximum UV Index Levels in St. Petersburg for July

The chart shows the monthly maximum UV Index (UVI) for St. Petersburg in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec6810111112121111975
Data source: St. Petersburg July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in St. Petersburg

As July rolls in, St. Petersburg basks in the warmth of summer with 319 hours of sunshine, continuing a delightful streak from previous months. The city's sunny disposition peaks in vibrant May, where it boasts 335 hours of radiant light, while April and June also contribute significantly to the sun-kissed ambiance with 319 and 303 hours respectively. This trend illustrates a consistent abundance of sunlight throughout the summer, maintaining a near-unwavering glow even as the days begin to shorten post-July. With the sun gradually setting on August’s 316 hours and September’s still generous 311 hours, the longer days of summer leave a lasting impression. Overall, residents and visitors alike can revel in St. Petersburg's lavish summer skies, creating an inviting backdrop for outdoor adventures.

Monthly Sunshine Duration in St. Petersburg: July Highlighted

The July sunshine duration represents the total number of hours St. Petersburg experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec216h265h321h319h335h303h319h316h311h300h279h269h
Data source: St. Petersburg July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in St. Petersburg During July

In St. Petersburg, the likelihood of sunny weather experiences a notable dip in July, with only a 23% chance of clear skies. This trend starkly contrasts the sunnier months leading up to summer, where April peaks at 63% and May at 59%. As temperatures rise in June, residents can expect a further decline to just 18%, paving the way for July's limited sunshine. Following this bracket of subdued sunny days, August sees even less likelihood at 17%, underscoring a pattern where summer often brings increased precipitation rather than prolonged sunshine. As the year progresses, the chance of sun gradually climbs again in the fall, reaffirming that while July may not be the sunniest month, St. Petersburg eventually basks in brighter days come autumn.

Percentage of Sunny Days in July in St. Petersburg

The chart illustrates the percentage of sunny days in St. Petersburg throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often St. Petersburg experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%51%54%63%59%18%23%17%33%51%55%57%
Data source: St. Petersburg July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in St. Petersburg in July

In St. Petersburg, July boasts a delightful 13 hours of daylight, mirroring the previous month and holding steady as one of the sunniest periods of the year. This month marks the peak of summer, as daylight hours steadily increase from January’s 10 hours, culminating in an extended stretch of vibrant sunshine. Following July, August retains this same generous daylight, but as the season transitions into fall, a gradual decline begins, with September dropping to 12 hours. This trend reveals a beautiful rhythm of nature, where summer's warm embrace lingers a bit longer before gently giving way to the cozy hues of autumn.

Average Daylight Hours in St. Petersburg for July

The chart illustrates the variation in daylight duration in St. Petersburg throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 35m11h 12m12h12h 50m13h 31m13h 51m13h 40m13h 4m12h 16m11h 27m10h 45m10h 23m
Data source: St. Petersburg daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in St. Petersburg

In July, the winds in St. Petersburg settle into a gentle rhythm, averaging a calm 3.8 m/s (9 mph). This decrease in average wind speed marks a notable dip compared to the preceding months, particularly June, which boasted a brisk 4.1 m/s (9 mph). As summer reaches its peak, July's cooler breezes provide a welcome contrast to the heat, reinforcing a trend of lighter winds that characterizes the latter half of the year. Following July, the winds pick up slightly in August, but they generally remain subdued as the area transitions back into autumn. This pattern suggests a seasonal shift where the vibrant summer days are complemented by a soothing, milder airflow in the heart of summer.

Average July Wind Speed in St. Petersburg

The chart displays monthly wind speed patterns in St. Petersburg, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.95.34.95.05.04.13.8 m/s4.23.44.65.03.6
Data source: St. Petersburg July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in St. Petersburg Compares to Other Months

The weather in St. Petersburg changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in St. Petersburg and find detailed weather information for every month.

The weather in July and January presents a stark contrast in St. Petersburg. July boasts warm temperatures ranging from a minimum of 25°C (77°F) to a maximum of 32°C (90°F), with an average of 28°C (82°F). However, it also brings considerable rainfall, with 204 mm (8.0 in) of precipitation over 25 days, contributing to a humidity level of 74%. In contrast, January features much cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 24°C (75°F), averaging 17°C (62°F). January experiences significantly less rainfall, with only 40 mm (1.6 in) spread over just 4 days, although the humidity is slightly higher at 82%. For more information on January weather in St. Petersburg, check out this link: St. Petersburg weather in January.

In St. Petersburg, July presents a stark contrast to February in terms of weather. July boasts much warmer temperatures, with minimums around 25°C (77°F) and maximums reaching up to 32°C (90°F), compared to February’s milder range of 9°C (48°F) to 25°C (78°F). Additionally, July experiences significantly higher precipitation, averaging 204 mm (8.0 in) over about 25 days, whereas February only sees 50 mm (2.0 in) across just 5 days. The humidity levels are comparable, with July at 74% and February slightly higher at 82%, making the summer month feel more oppressive. For a detailed look at February's climate, visit St. Petersburg weather in February.

When comparing the weather in July and March, July stands out as a hot and humid month, with average temperatures around 28°C (82°F) and maximums reaching up to 32°C (90°F). The month also experiences significant rainfall, totaling 204 mm (8.0 in) over approximately 25 days, resulting in a humidity level of 74%. Conversely, March offers a much milder climate, with average temperatures of 20°C (68°F) and maximums peaking at 26°C (80°F). Precipitation is minimal in March, averaging only 20 mm (0.8 in) over about three days, while the humidity is slightly higher at 79%. For more details on the weather patterns during this month, you can check St. Petersburg weather in March.

When comparing the weather in July and April, July is notably warmer with minimum temperatures starting at 25°C (77°F) and reaching daytime highs of 32°C (90°F), while April sees a more moderate temperature range with a minimum of 12°C (54°F) and a maximum of 28°C (83°F). April experiences significantly less rainfall, with only 60 mm (2.4 in) over about 7 days, compared to July's 204 mm (8.0 in) spread across 25 days. Additionally, humidity levels in April are slightly higher at 78%, compared to July's 74%. For a more detailed look at April weather, visit St. Petersburg weather in April.

When comparing the weather between May and July, one can see distinct differences in temperature and precipitation. July tends to be warmer, with average temperatures reaching around 28°C (82°F) and maximums peaking at 32°C (90°F), compared to May's average of 25°C (77°F) and maximum of 30°C (87°F). Moreover, July experiences significantly more rainfall, with 204 mm (8.0 in) over approximately 25 days, while May sees only 105 mm (4.1 in) across about 10 days. Despite these differences, both months maintain high humidity levels, with July at 74% and May slightly higher at 76%. For more insights into May's weather specifics, you can check St. Petersburg weather in May.

In comparison to June, July typically experiences slightly warmer temperatures, with minimums reaching 25°C (77°F) and an average of 28°C (82°F), as opposed to June's minimum of 23°C (74°F) and average of 27°C (81°F). Both months see a maximum temperature of around 32°C (89°F to 90°F), making them similarly warm at the higher end. However, July is notably wetter, with total precipitation of 204 mm (8.0 in) falling over 25 days, compared to June's 174 mm (6.8 in) over 19 days. This increase in rainfall results in a slightly higher humidity level in July, averaging 74% compared to June's 75%. For a more detailed understanding of June's weather, you can refer to St. Petersburg weather in June.

In comparing the weather of July and August, both months exhibit similar temperature ranges, with minimums around 25°C (77°F), averages of 28°C (82-83°F), and maximums reaching 32°C (90°F). However, August experiences slightly higher precipitation, totaling 219 mm (8.6 in) over 25 days, compared to July's 204 mm (8.0 in) under the same number of rainy days. The humidity remains consistent at 74% for both months, maintaining a tropical feel throughout the summer. For more detailed insights, you can check St. Petersburg weather in August.

In comparing the weather between July and September, both months exhibit warm temperatures with minimal variation, averaging around 27°C (81°F) in September compared to July's 28°C (82°F). While July experiences a slightly higher maximum temperature of 32°C (90°F), September maintains a similar range with a peak of 32°C (89°F). Precipitation levels decrease noticeably in September, measuring 143 mm (5.6 in) over 18 days, compared to July's 204 mm (8.0 in) across 25 days, indicating a drier climate as summer winds down. Additionally, humidity levels are marginally elevated in September at 78% compared to July's 74%. For more detailed insights, check out St. Petersburg weather in September.

In July, temperatures are notably warmer, with minimums around 25°C (77°F) and maximums reaching up to 32°C (90°F), while October offers a cooler climate with minimums dropping to 15°C (59°F) but still enjoying average highs of 26°C (79°F). July also brings significantly more rainfall, accumulating 204 mm (8.0 in) over 25 days, compared to October's much drier conditions with only 67 mm (2.6 in) across 10 days. Additionally, humidity levels remain high in both months, with July at 74% and October slightly higher at 79%. For more detailed insights, you can check out St. Petersburg weather in October.

In St. Petersburg, July is characterized by much warmer weather, with average temperatures around 28°C (82°F) and highs reaching up to 32°C (90°F). The month is also quite humid at 74%, with significant rainfall of 204 mm (8.0 in) spread over 25 days. In contrast, November brings a much cooler climate, with average temperatures dropping to 21°C (70°F) and maximums of 28°C (83°F). Humidity rises slightly to 82%, but the precipitation is significantly lower at 46 mm (1.8 in) over just 6 days. For more detailed information, you can check St. Petersburg weather in November.

In July, St. Petersburg experiences warm and humid conditions, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 32°C (90°F) and an average of 28°C (82°F). However, this month also sees significant rainfall, with 204 mm (8.0 in) of precipitation occurring over 25 days, contributing to a humidity level of 74%. In contrast, December offers a much cooler climate, with temperatures dropping to a minimum of 7°C (45°F) and a maximum of 25°C (77°F), averaging 19°C (66°F). Precipitation is considerably lower in December, with only 66 mm (2.6 in) falling over 6 days, but the humidity is slightly higher at 84%. For more detailed insights, you can check out St. Petersburg weather in December.

Compare St. Petersburg's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in St. Petersburg

In July, St. Petersburg embraces the peak of summer, showcasing a distinct shift in weather compared to other months. With warm temperatures reaching up to 32°C (90°F) and an average of 28°C (82°F), residents and visitors revel in the heat, perfect for beach activities and outdoor excursions. However, this warmth comes with increased humidity and frequent rainfall, leading to about 25 wet days throughout the month, contributing a significant 204 mm (8.0 in) of precipitation. This blend of warmth and moisture creates a vibrant, tropical atmosphere that sets July apart, making it an essential time to enjoy the city’s lush landscapes. For a deeper understanding of the region's climate patterns, explore St. Petersburg Climate.