Last updated: August 27, 2025
September in Peterhof, Russian Federation, ushers in a transition from the warm summer months to the crispness of autumn. With a maximum temperature peaking at 23°C (73°F) and an average of 13°C (55°F), the weather remains mild, though it can dip as low as 4°C (39°F) during chilly nights. Rainfall is notable, with an average of 92 mm (3.6 in) spread over 14 days, contributing to the region's lush landscapes. High humidity levels, reaching 90%, further accentuate the refreshing atmosphere, making September a unique time to experience the beauty of Peterhof.
In September, Peterhof, Russian Federation, experiences a noticeable transition as summer begins to wane and autumn takes its place. The minimum temperature settles around 4°C (39°F), while pleasant days bring an average of 13°C (55°F) and highs reaching up to 23°C (73°F). This period marks a delightful balance, where visitors can enjoy crisp air without the bite of winter's chill. Compared to the sweltering August, which boasts highs near 27°C (81°F), September offers a refreshing cool-down, making it an ideal time to explore the stunning gardens and palaces of this historic site. As the month progresses, the temperatures hint at the colder months ahead, inviting a sense of change and anticipation.
In September, Peterhof experiences a notable transition as the summer warmth begins to wane, bringing a significant 92 mm (3.6 in) of precipitation across 14 days. This surge in rainfall, while lower than the summer peak in August (with 131 mm), highlights the onset of the wetter autumn months. As temperatures drop, September sets the stage for an increase in precipitation days that escalates into the following months, culminating in October's 103 mm (4.0 in) over 17 days. The month serves as a bridge, blending the remnants of summer's lushness with the approaching chill of fall, making for a dynamic and engaging climate pattern in this historic Russian locale.
In September, Peterhof experiences a notable shift in humidity, with levels reaching around 90%. This marks an increase from the drier summer months of May to August, where humidity ranges from 71% to 86%. As autumn approaches, the air becomes noticeably more humid, echoing the trends of previous months, where humidity levels tend to remain high throughout the fall. Following September, the humidity ticks upward again in October, reflecting a consistent pattern of elevated moisture in the atmosphere as the year progresses. This gradual rise in humidity underscores Peterhof's characteristic climate, where even as summer fades, the air remains rich and moist, setting the stage for the cooler months ahead.
September in Peterhof sees a UV Index of 4, marking a shift as the summer months give way to fall. With this moderate exposure category, residents and visitors should be aware that a burn can occur in just 30 minutes. This month continues the trend from August, where the UV Index was slightly higher at 5, but remains lower than the peak summer months of June and July, which featured a high UV Index of 7. As we transition into the cooler months, it's essential to stay mindful of UV exposure, especially during peak sunlight hours. For more detailed information, check out the Peterhof UV Index.
UV Risk Categories
As September unfolds in Peterhof, the sunlight begins to soften, wrapping the lush gardens and palatial architecture in a warm embrace. With 274 hours of sunshine, this month marks a delightful transition from the bustling warmth of summer, which saw an impressive 466 hours in June and 454 hours in July. The diminishing daylight hints at the forthcoming chill of autumn, yet September still offers a generous amount of bright days compared to the starkness of the winter months that follow, where sunlight dwindles to a mere 36 hours in December. This gradual tapering of light not only sets the stage for the changing leaves but also invites visitors to enjoy one last taste of summer’s glory before the shadows lengthen, making September an enchanting time to experience the beauty of Peterhof.
As summer transitions into autumn, Peterhof experiences a notable shift in sunny weather potential. In September, the likelihood of encountering bright, sunny days drops to 22%, marking a decrease from the summer peaks of 56% in June and 58% in July. This trend reflects the gradual waning of warmth, with early fall bringing a mix of clouds and mild temperatures. While sunseekers might find September less favorable compared to the sun-drenched days of summer, the charming allure of the season remains, inviting visitors to enjoy the majestic gardens and stunning architecture against a backdrop of changing leaves.
In September, Peterhof, Russian Federation, experiences a transition as daylight hours begin to wane, providing about 12 hours of light each day. This marks a notable decrease from the vibrant 17 hours of sunlight enjoyed in May and June, highlighting the shift toward autumn. The gradual reduction in daylight is evident, as the longer summer days recede, giving way to the crisp, shorter days of October, which offers just 10 hours of daylight. Despite this decline, September retains a sense of warmth and brightness, making it a beautiful time to appreciate the changing foliage in the gardens and parks of Peterhof.
As September unfolds in Peterhof, the winds pick up slightly, averaging 5.3 m/s (12 mph), close to the pleasant breezes of the preceding month. This gentle flow mirrors the transition into autumn, where one can feel the crispness in the air as summer's warmth begins to fade. Interestingly, the wind speeds during this month are only marginally lower than the more gusty months of August and October, suggesting a lingering vitality in the late summer atmosphere. Overall, the trend reveals that while spring and summer boast lighter breezes, early autumn sees a subtle increase, setting the stage for the cooling winds that will characterize the months ahead.
Weather in Peterhof varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Peterhof, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, temperatures range from a mild 4°C (39°F) at night to a comfortable 23°C (73°F) during the day, with an average of 13°C (55°F). The month sees significant rainfall, with 92 mm (3.6 in) spread over 14 days and a high humidity of 90%. In stark contrast, January experiences much colder temperatures, with nighttime lows plummeting to -18°C (0°F) and daytime highs only reaching 6°C (43°F), averaging -4°C (26°F). Precipitation is lower, with just 43 mm (1.7 in) over 12 days, but the humidity is notably high at 97%. For more detailed information on January weather, visit Peterhof weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). The month sees significant precipitation, totaling 92 mm (3.6 in) over 14 days, and humidity levels remain high at 90%. Conversely, February experiences much colder temperatures, ranging from a chilling minimum of -24°C (-12°F) to a maximum of 6°C (42°F), with an average of -4°C (25°F). While it has less total precipitation at 54 mm (2.1 in), it shares the same frequency of rainy days, with precipitation occurring over 14 days, and humidity levels slightly higher at 94%. For a deeper dive into February weather specifics, you can check Peterhof weather in February.
September and March present striking contrasts in weather patterns. September enjoys a milder climate with average temperatures ranging from 4°C (39°F) to a pleasant 23°C (73°F), along with higher precipitation totaling 92 mm (3.6 in) across 14 rainy days, all within a humid atmosphere of 90%. In contrast, March is characterized by cold conditions, where temperatures plummet to a minimum of -21°C (-6°F) and only reach a maximum of 8°C (48°F). Precipitation is lower, at 54 mm (2.1 in), over 12 days, but the humidity remains constant at 90%. For more details about March weather conditions, you can refer to Peterhof weather in March.
September and April present notable contrasts in weather. In September, temperatures are more moderate, ranging from a minimum of 4°C (39°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). The month also sees higher humidity at 90% and more substantial rainfall, totaling 92 mm (3.6 in) over about 14 days. In contrast, April tends to be colder, with temperatures ranging from a low of -9°C (15°F) to a high of 16°C (61°F) and an average temperature of just 3°C (38°F). Precipitation is lighter in April, at 48 mm (1.9 in) across approximately 10 days, and the humidity level is slightly lower at 86%. For those interested in learning more about April weather specifics, you can check Peterhof weather in April.
September and May present distinct weather patterns, highlighted by temperature variations and humidity levels. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). This month experiences significant precipitation, with 92 mm (3.6 in) falling over 14 days and a high humidity level of 90%. In contrast, May offers a cooler start with minimum temperatures around 0°C (33°F), culminating in a maximum of 24°C (76°F) and an average of 10°C (50°F). Rainfall is considerably less in May, with only 49 mm (1.9 in) over 9 days and a lower humidity level at 71%. For more insights into May weather, you can visit Peterhof weather in May.
September and June present contrasting weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). The month experiences higher humidity at 90% and more frequent rainfall, totaling 92 mm (3.6 in) over 14 days. In contrast, June boasts warmer temperatures, with a minimum of 5°C (42°F) and a maximum of 31°C (88°F), averaging 16°C (62°F). Additionally, June sees less precipitation at 53 mm (2.1 in) across 9 days and lower humidity at 77%. For more detailed insights on June's weather, check out Peterhof weather in June.
The weather in September shows a notable shift towards cooler temperatures, with a minimum of 4°C (39°F) and an average of 13°C (55°F), compared to July, which experiences milder conditions with minimum temperatures of 11°C (52°F) and an average of 18°C (65°F). The maximum temperature also drops significantly in September, peaking at 23°C (73°F), whereas July sees a warmer maximum of 29°C (85°F). Despite slightly less precipitation in July at 87 mm (3.4 in) over 13 days compared to September's 92 mm (3.6 in) over 14 days, the humidity is higher in September at 90%, compared to July's 82%. For a detailed look at July's climate, you can check Peterhof weather in July.
In September, the weather tends to be cooler compared to August, with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 23°C (73°F), while August boasts higher averages of 10°C (51°F) to 27°C (81°F). Additionally, September experiences slightly less precipitation at 92 mm (3.6 in) over 14 days, compared to August's 131 mm (5.1 in) over 15 days. Humidity is also higher in September at 90%, compared to August's 86%. For a more detailed look at August weather in the area, you can check out Peterhof weather in August.
As September transitions into October, the weather experiences a notable shift. September boasts a milder temperature range with a minimum of 4°C (39°F) and an average of 13°C (55°F), peaking at 23°C (73°F). In contrast, October sees temperatures dip significantly, with a minimum of -2°C (28°F) and an average of 7°C (45°F), reaching a maximum of only 16°C (61°F). Additionally, October typically experiences slightly more precipitation, accumulating 103 mm (4.0 in) over 17 days, compared to September's 92 mm (3.6 in) over 14 days. Humidity also rises slightly, reaching 93% in October, making the air feel even brisker. For a deeper look into October's climate specifics, visit Peterhof weather in October.
In September, the weather is relatively mild, with average temperatures ranging from a low of 4°C (39°F) to a comfortable high of 23°C (73°F). This month experiences significant rainfall, accumulating to 92 mm (3.6 in) over approximately 14 days, while humidity remains high at 90%. In contrast, November ushers in much colder conditions, with average temperatures dipping to a minimum of -6°C (22°F) and a maximum of just 10°C (51°F). Although precipitation decreases to 68 mm (2.7 in) over 15 days, the humidity rises slightly to 93%, adding to the cold, damp atmosphere. For more insights on the specifics of November weather, you can refer to Peterhof weather in November.
In September, the weather is relatively mild, with temperatures fluctuating between a minimum of 4°C (39°F) and a maximum of 23°C (73°F), averaging around 13°C (55°F). The month experiences considerable precipitation, totaling 92 mm (3.6 in) over 14 days, coupled with high humidity levels at 90%. In contrast, December heralds the arrival of winter, bringing much colder temperatures that range from a minimum of -19°C (-1°F) to a maximum of 5°C (41°F), with an average of -2°C (29°F). December sees slightly lower precipitation at 75 mm (2.9 in) spread across 18 days, while humidity rises to 94%. For more detailed information on this month's conditions, you can visit Peterhof weather in December.
As September unfolds in Peterhof, the weather shifts notably, marking the transition from summer's warmth to the crispness of autumn. With temperatures settling around a mild average of 13°C (55°F), it's a time when visitors can still enjoy pleasant days, but mornings and evenings turn noticeably cooler, often dipping to around 4°C (39°F). The increase in precipitation, totaling about 92 mm over 14 days, brings a refreshing touch to the landscape; however, the high humidity levels can make the air feel heavier. This unique blend of warmth and moisture distinguishes September from the sunnier summer months, making it a captivating period to experience the beauty of Peterhof. For more details on what to expect throughout the year, explore Peterhof Climate.