Last updated: February 24, 2025
In September, Georgetown experiences a dynamic climate, with temperatures ranging from a comfortable 23°C (75°F) to a brisk minimum of -10°C (15°F). The month sees an average temperature settling around 8°C (48°F), creating a refreshing transition into autumn. Rainfall is moderate, with 45 mm (1.8 in) of precipitation spread across approximately 9 days, contributing to a humidity level of 65% that adds to the season's crispness. This combination of mild temperatures and occasional showers makes September an interesting time for both residents and visitors in this charming U.S. city.
As September rolls into Georgetown, the temperatures begin to reflect the transition from summer to the briskness of autumn. The month sees a minimum temperature of -10°C (15°F), while daytime highs can reach a pleasant 23°C (75°F), creating a comfortable average of 8°C (48°F). This provides a delightful reprieve compared to the more frigid months that follow. The gradual decline in temperatures from the relatively warm summer marks a significant shift, with September offering crisp mornings and increasingly cool evenings, inviting residents and visitors alike to enjoy the beauty of the season. The trend clearly shows the onset of colder weather, paving the way for the winter chill soon to come.
In September, Georgetown experiences a moderate precipitation of 45 mm (1.8 in) spread over 9 days, marking a noticeable decline from the summer months. While the rainfall is less than the intense peaks of May (95 mm) and July (89 mm), it still contributes to the region's overall climate. Interestingly, September's precipitation levels fall in line with those of October and December, hinting at a transitional phase as summer gives way to autumn. The relatively dry September, compared to earlier months, sets the stage for the gradually cooler and wetter autumn. This month serves as a gentle reminder of the impending seasonal changes, with fewer rainy days yet essential moisture for the environment.
In September, humidity in Georgetown tends to settle at around 65%, marking the beginning of a transition as summer fades into fall. This month experiences a slight uptick from August's 56%, indicating a gradual return to the more humid conditions characteristic of earlier months. The overarching trend shows that Georgetown remains relatively humid throughout the year, with January peaking at 88% and a noticeable drop to 52% in July. As autumn approaches, the humidity climbs again, foreshadowing a return to the wetter winter months ahead, where it will peak again in December at 89%. Overall, while September’s humidity provides a comforting balance between summer’s heat and winter’s chill, it also highlights Georgetown's consistent climatic patterns throughout the year.
September in Georgetown, United States, offers a very high UV Index of 10, making it crucial for sun enthusiasts to take caution while enjoying outdoor activities. As summer transitions to fall, the UV Index drops slightly from the extreme levels seen in July and August, yet the risk of skin damage remains significant, with a burn time of just 15 minutes for unprotected skin. This month signifies a gradual decrease in UV radiation, following the peak values of the year, yet it still highlights the importance of protection. Be sure to stay informed and safeguard your skin as you explore the beautiful September days! For more details, visit Georgetown UV Index.
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September in Georgetown graces residents with 314 hours of sunshine, a delightful transition from the sun-drenched summer months. As summer peaks in July with 381 hours, the daylight gradually begins to wane, yet September maintains a respectable glow, outshining the earlier months of the year such as January and February. This post-summer warmth continues to usher in autumn, providing a pleasant buffer as daylight hours decrease heading into October's 281 hours. With its balanced sun exposure, September offers the perfect setting for outdoor activities, making it a cherished month for locals and visitors alike. As the year progresses, Georgetown's sun patterns reflect the beauty of each season, but September stands out as a vibrant link between summer's fullness and autumn's embrace.
As September rolls in, Georgetown, United States, basks in the glory of sunny weather, boasting a 67% chance of sunshine. This marks a noticeable uptick from the summer months, where the likelihood hovered around 53% in both July and June. August sees a welcoming increase to 63%, but September takes the crown, offering residents and visitors alike a delightful mix of warmth and brightness. Following the trend of increasing sun chances, October also starts with a healthy 58%, showcasing that the transition into fall still retains some summer's charm. With September's sunny disposition, it's an ideal time for outdoor activities and enjoying the beauty of the season.
In September, Georgetown experiences a transition as the summer days gradually shorten, offering about 12 hours of daylight. This marks a slight decrease from the 14 hours enjoyed in the peak months of May through July. Following a steady increase in daylight from 9 hours in January to a summer peak, the waning sunlight begins to signal the approaching autumn. As September progresses, the days continue to shorten, leading into October's 11 hours of daylight, illustrating the natural rhythm of the seasons. This trend highlights Georgetown's shift from the vibrant, sun-soaked summer months into the cooler, crisp days of fall.
As September rolls in, the wind in Georgetown dances softly at an average speed of 2.2 m/s (5 mph), marking a subtle increase from the quieter summer months. This gentle breeze hints at the transition towards autumn, following a season of consistently low winds, peaking in July at just 2.0 m/s (4 mph). Interestingly, while September's winds aren't robust, they maintain a steady rhythm that paves the way for a gradual uptick in wind speed as the season progresses into October and November. This trend beautifully encapsulates the shifting dynamics of Georgetown's climate, where every flutter of the leaves becomes a whisper of the changing season.
The weather in Georgetown changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Georgetown and find detailed weather information for every month.
September and January present striking contrasts in weather patterns. In September, temperatures range from a chilly -10°C (15°F) at night to a pleasant 23°C (75°F) during the day, with an average of 8°C (48°F). Meanwhile, January is significantly colder, with minimum temperatures plummeting to -28°C (-18°F) and a daily maximum of only 6°C (44°F), leading to an average of -9°C (16°F). While September enjoys slightly more precipitation at 45 mm (1.8 in) over 9 days, January sees less at 33 mm (1.3 in) across 8 days, but with higher humidity at 88%. For a closer look at January conditions, check out Georgetown weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a minimum of -10°C (15°F) to a pleasant maximum of 23°C (75°F), with an average of 8°C (48°F). The month sees about 45 mm (1.8 in) of precipitation over 9 days, and humidity levels sit at a moderate 65%. In contrast, February experiences much colder conditions, with minimum temperatures plummeting to -30°C (-21°F) and a maximum of just 10°C (50°F), resulting in an average temperature of -9°C (16°F). Although February receives slightly more precipitation at 50 mm (2.0 in) spread over 12 days, the humidity level is significantly higher at 87%. For a more detailed look at February weather patterns, check out Georgetown weather in February.
In comparing the weather of September and March, one can note significant differences in temperature and precipitation. September enjoys a more moderate climate with minimum temperatures around -10°C (15°F) and an average of 8°C (48°F), peaking at a comfortable 23°C (75°F). The precipitation is relatively modest at 45 mm (1.8 in) over about 9 days, along with a humidity level of 65%. In contrast, March is significantly colder, with minimum temperatures dropping to -23°C (-9°F) and an average of -5°C (24°F), reaching a maximum of only 11°C (52°F). The month sees a higher precipitation total of 64 mm (2.5 in) spread over 13 days, resulting in a humidity of 81%. For more detailed information on the weather in March, you can visit Georgetown weather in March.
September and April exhibit stark contrasts in weather patterns. In September, temperatures range significantly, with a minimum of -10°C (15°F) and a comfortable average of 8°C (48°F), peaking at a pleasant 23°C (75°F). The month sees relatively moderate precipitation, totaling 45 mm (1.8 in) over about 9 days, and a humidity level of 65%. In contrast, April is much colder, starting with a minimum temperature of -20°C (-5°F) and averaging -2°C (29°F), with a maximum of only 12°C (53°F). Precipitation in April is higher, accumulating to 78 mm (3.1 in) across approximately 13 days, and the humidity increases slightly to 76%. For more detailed information, you can check Georgetown weather in April.
September and May present distinct weather patterns, reflecting the transition between summer and fall in September, and the gradual warming towards summer in May. In September, temperatures range from a chilly minimum of -10°C (15°F) to a comfortable maximum of 23°C (75°F), with an average of 8°C (48°F). The month experiences about 45 mm (1.8 in) of precipitation over 9 days, accompanied by a humidity level of 65%. In contrast, May starts off cooler, with temperatures dropping to a minimum of -12°C (11°F) and reaching a maximum of 20°C (68°F), averaging just 2°C (36°F). Precipitation significantly increases in May, totaling 95 mm (3.7 in) over 17 days, and humidity stays slightly higher at 66%. For more detailed information, you can check Georgetown weather in May.
In comparing September and June, we see distinct differences in their weather patterns. September experiences a broader temperature range with minimums dropping to -10°C (15°F) and maximums reaching up to 23°C (75°F), while June's temperatures are slightly milder, ranging from a minimum of -7°C (20°F) to a maximum of 25°C (78°F). Additionally, September has an average temperature of 8°C (48°F), compared to June's average of 9°C (48°F). Precipitation is also greater in June, totaling 64 mm (2.5 in) over about 13 rainy days, while September sees 45 mm (1.8 in) with about 9 rainy days. Lastly, humidity is slightly higher in September at 65% compared to June's 58%. For more specific details about June weather, check out Georgetown weather in June.
When comparing the weather in September and July, several notable differences emerge. September typically experiences a broader temperature range, with minimums reaching -10°C (15°F) and maximums peaking at 23°C (75°F), while July's temperatures are slightly warmer, ranging from -2°C (29°F) to a maximum of 25°C (77°F). Additionally, September generally sees lower humidity levels at 65% compared to July’s 52%, making it feel slightly drier. However, September also brings more precipitation, averaging 45 mm (1.8 in) over 9 days, whereas July experiences a higher total of 89 mm (3.5 in) over 18 days. For a detailed look at July weather, you can check Georgetown weather in July.
In comparing the weather of August and September, it's evident that September is marked by cooler temperatures, with a minimum of -10°C (15°F) compared to August's minimum of 0°C (33°F). Both months share a maximum temperature of 23°C (75°F), but September has a lower average temperature of 8°C (48°F) compared to August's 12°C (54°F). Additionally, September experiences less precipitation, totaling 45 mm (1.8 in) over 9 days, while August records 62 mm (2.4 in) over 13 days. The humidity levels are slightly higher in September at 65%, compared to 56% in August. For a more detailed look at the weather in August, you can visit Georgetown weather in August.
September and October present a notable shift in weather conditions. In September, temperatures range from a chilly minimum of -10°C (15°F) to a comfortable maximum of 23°C (75°F), with an average of 8°C (48°F). The month experiences 45 mm (1.8 in) of precipitation over 9 days and a humidity level of 65%. Conversely, October sees a sharper decline in temperatures, with minimums dropping to -25°C (-12°F) and an average of 0°C (32°F), while the maximum temperature reaches 18°C (65°F). Precipitation increases slightly to 56 mm (2.2 in) over the same number of days, and the humidity rises to 76%. For a more detailed look at the weather specifics for this month, you can check out Georgetown weather in October.
September generally offers milder weather compared to November, as temperatures range from a minimum of -10°C (15°F) and an average of 8°C (48°F) to a maximum of 23°C (75°F). This month experiences about 45 mm (1.8 in) of precipitation over approximately 9 days, with humidity averaging 65%. In contrast, November brings colder conditions, with temperatures plummeting to a minimum of -25°C (-12°F) and an average of -5°C (23°F), peaking at only 11°C (51°F). Precipitation is slightly lower at 35 mm (1.4 in) over 7 days, but the humidity increases to a more notable 82%. For more details about November weather, you can visit Georgetown weather in November.
In September, the weather is generally milder, with temperatures ranging from a minimum of -10°C (15°F) to a maximum of 23°C (75°F) and an average of 8°C (48°F). The month also sees around 45 mm (1.8 in) of precipitation spread over 9 days, with humidity levels at 65%. In contrast, December experiences much colder temperatures, with a minimum of -25°C (-13°F), an average of -9°C (16°F), and a maximum of only 8°C (47°F). Although precipitation is slightly lower at 32 mm (1.3 in) over 9 days, humidity rises significantly to 89%. For a closer look at December weather specifics, you can check out Georgetown weather in December.
As September unfolds in Georgetown, it presents a shifting tapestry of weather that stands apart from the summer months. With temperatures gently declining, the month offers a pleasant range, making outdoor activities enjoyable while hinting at the upcoming chill of autumn. The mixture of sunny days and occasional rain–with about nine days of precipitation –adds to the vibrant colors of the changing leaves. The average humidity level of 65% contributes to a crisp freshness in the air, inviting residents and visitors alike to relish the beauty of the season. For a deeper dive into this enchanting climate, explore more at Georgetown Climate.