September Weather in Marblehead, United States

Last updated: February 24, 2025

In September, Marblehead, United States experiences a mild and refreshing climate, with temperatures ranging from a comfortable 11°C (53°F) to a pleasant 26°C (80°F), averaging around 18°C (65°F). This month brings about 97 mm (3.8 in) of precipitation over approximately 8 days, contributing to a notably 71% humidity level. As the summer fades, residents and visitors can enjoy the transition of the season, marked by crisp air and the vibrant colors of early autumn.

September Temperature in Marblehead

In September, Marblehead, United States experiences a delightful transition as summer gently melts into autumn. With minimum temperatures around 11°C (53°F) and an inviting average of 18°C (65°F), the month showcases a comfortable warmth just before the cooler months set in. Daytime highs can reach up to 26°C (80°F), making it a fantastic time for outdoor activities, yet the declining trend from the sweltering summer is evident as it gradually nudges residents to don light sweaters in the evenings. This shift not only enhances the beautiful coastal scenery but also signals the arrival of vibrant fall foliage, enticing both locals and visitors to embrace the crisp air and stunning views that September has to offer.

September Weather in Marblehead: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Marblehead, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333437445361697065574537
Data source: Temperature data for Marblehead generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Marblehead

In September, Marblehead experiences a moderate increase in precipitation, with 97 mm (3.8 in) of rain falling over just 8 days. This marks a transition from the drier summer months, particularly August, which recorded a mere 62 mm (2.5 in). The trend suggests that as summer wanes, the frequency and intensity of rainfall begin to pick up, paving the way for October's much heavier precipitation of 177 mm (7.0 in) expected over 12 days. As autumn approaches, residents can anticipate a shift in weather, resulting in a more dynamic and moisture-rich environment.

September Precipitation Trends in Marblehead

The chart displays monthly precipitation patterns in Marblehead, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec92118111165104901056297177116150
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Marblehead

In September, Marblehead experiences a slight uptick in humidity at 71%, marking a transitional shift as summer begins to wane. This increase follows the summer months, where humidity dipped to its lowest at 66% in August. Interestingly, September's level is a notable rise from the more comfortable summer averages but remains lower than the higher humidity levels typical of the earlier winter months, which peak around 86% in January. As the region gears up for fall, the humidity in September serves as a bridge, hinting at both the lingering warmth of summer and the eventual coolness that autumn brings, illustrating how seasonal changes impact the air’s moisture content in this charming coastal town.

September Average Humidity in Marblehead

This chart illustrates the average monthly humidity levels in Marblehead, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Marblehead

As summer transitions into fall, September in Marblehead brings a notable drop in the UV Index, with levels reaching 7, categorized as high exposure. This reflects a gradual decrease from the very high levels experienced during the peak summer months of June through August, where even short sun exposure could result in burns in just 15 minutes. In contrast, September allows for a slightly longer safe exposure time of 25 minutes before the risk increases. As the weather cools, it's essential for residents and visitors to continue being mindful of sun safety; even as the UV Index subsides, UV rays can still cause harm. To stay informed about daily UV levels, check the detailed forecast at Marblehead UV Index.

Maximum UV Index Levels in Marblehead for September

The chart shows the monthly maximum UV Index (UVI) for Marblehead in September, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997642
Data source: Marblehead September 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.

September Sunshine in Marblehead

As September rolls into Marblehead, the transition from summer's peak to autumn is beautifully marked by a generous 280 hours of sunshine. This month sees a slight dip from the sun-drenched days of July and August, yet it still stands out as a vibrant time of year, perfect for basking in the warm glow of early fall. The trend of increasing sunlight hours from January through July offers a stark contrast to the gradual decline we observe in the latter months. However, September's golden rays linger, inviting locals and visitors alike to indulge in outdoor activities before the chill of October sets in, with its 228 hours of sunlight. As the year progresses, this transitional month beautifully encapsulates the essence of both summer's end and autumn's beginning, maintaining a balance that tantalizes the senses.

Monthly Sunshine Duration in Marblehead: September Highlighted

The September sunshine duration represents the total number of hours Marblehead experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec152h188h255h244h295h330h340h330h280h228h202h176h
Data source: Marblehead September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Marblehead During September

In Marblehead, United States, September brings a notable increase in the likelihood of sunny weather, with a 46% chance of sunshine gracing the days. This marks a significant uptick from the lesser probabilities seen in the summer months, particularly July and August, which both hover around the low 30% range. As summer transitions into fall, September emerges as one of the more promising months for sunshine, outperforming several other months like January and April. This trend suggests that while the autumn season is on the horizon, there's still a delightful opportunity to enjoy warm, sunny days before the cooler months settle in.

Percentage of Sunny Days in September in Marblehead

The chart illustrates the percentage of sunny days in Marblehead throughout the year, with September 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 Marblehead experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%34%61%42%39%41%34%32%46%39%55%31%
Data source: Marblehead September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Marblehead in September

As September rolls in, daylight in Marblehead begins to wane, offering about 12 hours of sunlight—a gentle decline from the summer's peak of 15 hours in June. This month's daylight duration marks a subtle transition towards autumn, as nature prepares for the cooler days ahead. While early fall still allows for pleasant evenings illuminated by the sun, the gradual reduction is a reminder of the approaching shorter days of October, which will see daylight dip further to 10 hours. Overall, September balances the lingering warmth of summer with the early hints of autumn, making it a beautiful time to enjoy the crisp air and fading light.

Average Daylight Hours in Marblehead for September

The chart illustrates the variation in daylight duration in Marblehead throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 26m10h 33m11h 57m13h 24m14h 37m15h 14m14h 54m13h 49m12h 26m10h 59m9h 44m9h 5m
Data source: Marblehead daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Marblehead

As the summer fades into the crisp air of autumn, September brings a gentle revival in Marblehead’s wind speeds, averaging 5.0 m/s (11 mph). This slight uptick from the languid breezes of July and August reflects the gradual transition towards the more invigorating gusts characteristic of fall. Interestingly, September's winds hint at a sense of calm before the seasonal shift, laying the groundwork for a notable increase in October's winds, which rise to 5.9 m/s (13 mph). Overall, the trend showcases a natural ebb and flow of wind, with September acting as a bridge between the warm, serene summer and the brisk invigorating autumn, inviting residents to enjoy the delicate balance of the changing seasons.

Average September Wind Speed in Marblehead

The chart displays monthly wind speed patterns in Marblehead, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.66.46.75.65.45.14.44.35.0 m/s5.96.06.1
Data source: Marblehead September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Marblehead Compares to Other Months

The weather in Marblehead 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 Marblehead and find detailed weather information for every month.

September and January present strikingly different weather patterns. In September, temperatures range from a mild 11°C (53°F) at night to a warm 26°C (80°F) during the day, with an average of 18°C (65°F). The month sees about 97 mm (3.8 in) of precipitation over 8 days and a comfortable humidity level of 71%. In contrast, January is much colder, featuring temperatures that drop as low as -17°C (2°F), with an average of 1°C (33°F) and a maximum of 15°C (59°F). Precipitation is slightly lower at 92 mm (3.6 in) but occurs over 9 days, with humidity peaking at 86%. The drastic differences between the two months highlight the seasonal changes and varying weather conditions in the region. For more details on January weather specifics, you can check Marblehead weather in January.

In comparing the weather between September and February, we see a striking contrast. September boasts a pleasant range of temperatures, with minimums of 11°C (53°F) and maximums reaching 26°C (80°F), averaging a comfortable 18°C (65°F). The month typically experiences about 97 mm (3.8 in) of precipitation over 8 days, while maintaining a relatively moderate humidity of 71%.

In stark contrast, February presents much colder conditions, with temperatures plummeting as low as -14°C (8°F) and averaging just 1°C (34°F). Despite being a winter month, February has slightly higher precipitation at 118 mm (4.6 in) over 11 days, and a higher humidity level at 84%. For more detailed insights into February's unique weather patterns, visit Marblehead weather in February.

September and March present contrasting weather conditions. In September, temperatures are milder, with a minimum of 11°C (53°F) and an average of 18°C (65°F), peaking at a comfortable 26°C (80°F). Rainfall is moderate, with 97 mm (3.8 in) of precipitation over 8 days, and humidity levels at 71%. In contrast, March is much colder, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 14°C (57°F), averaging just 3°C (37°F). Although it experiences slightly more precipitation at 111 mm (4.4 in) over 11 days, humidity is higher at 82%. For a closer look at conditions during this chilly month, check out Marblehead weather in March.

When comparing the weather in September and April, we see notable differences. September typically features milder temperatures, with a minimum of 11°C (53°F) and an average of 18°C (65°F), peaking at a pleasant 26°C (80°F). In contrast, April experiences cooler conditions, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 18°C (65°F), making it significantly chillier overall. Furthermore, April tends to be wetter, with 165 mm (6.5 in) of precipitation over 13 days, compared to September's 97 mm (3.8 in) over 8 days. The humidity also rises in April, averaging 80%, compared to September's 71%. For a closer look at April's weather specifics, check out Marblehead weather in April.

The weather in September tends to be warmer compared to May, with average temperatures reaching 18°C (65°F) and a maximum of 26°C (80°F), while May only sees an average of 11°C (53°F) and a maximum of 22°C (72°F). However, September experiences a slightly higher humidity level at 71% compared to May's 72%. Precipitation levels are similar in both months, with September receiving 97 mm (3.8 in) over 8 days and May slightly wetter at 104 mm (4.1 in) during 10 days. For a closer look at the weather specific to May, check out Marblehead weather in May.

When comparing the weather in September and June, we see some interesting similarities and differences. September typically offers slightly warmer temperatures, with an average of 18°C (65°F) compared to June’s 16°C (62°F). Both months share the same maximum temperature of 26°C (79°F), but September's minimum temperature is just a touch warmer at 11°C (53°F) compared to June's 10°C (50°F). Precipitation levels are also comparable, with September receiving 97 mm (3.8 in) over 8 days, while June has 90 mm (3.6 in) across 9 days, and humidity levels remain fairly consistent at around 71% and 72%, respectively. For more specific insights into June weather, you can check Marblehead weather in June.

In comparison, September experiences slightly cooler temperatures than July, with average highs reaching 26°C (80°F) compared to July's 28°C (83°F). The minimum temperature in September is 11°C (53°F), which is notable since July starts at a higher minimum of 15°C (59°F). Both months see significant precipitation, but September has less, with 97 mm (3.8 in) falling over 8 days, while July records 105 mm (4.1 in) over 11 days. Humidity is slightly higher in September at 71%, compared to 67% in July. For a detailed look at the July weather, visit Marblehead weather in July.

September weather is noticeably cooler and wetter compared to August. The average temperature drops from 21°C (70°F) in August to 18°C (65°F) in September, with September experiencing lower minimum temperatures of 11°C (53°F) compared to 16°C (60°F) in August. Additionally, September sees increased precipitation, totaling 97 mm (3.8 in) over 8 days, compared to August's 62 mm (2.5 in) during the same number of days. Humidity also rises slightly, from 66% in August to 71% in September, contributing to the overall perception of a more humid climate as summer shifts into fall. For more information on the August weather, you can check Marblehead weather in August.

September and October present distinct shifts in weather patterns. In September, temperatures range from a mild 11°C (53°F) at night to a comfortable 26°C (80°F) during the day, with an average of 18°C (65°F). Precipitation is moderate, with 97 mm (3.8 in) over 8 days, and humidity rests at 71%. In contrast, October brings cooler conditions, with nighttime temperatures dropping to a minimum of 3°C (37°F) and a daytime maximum of 22°C (72°F), averaging around 14°C (57°F). Rainfall increases significantly, totaling 177 mm (7.0 in) across 12 days, while humidity rises slightly to 78%. For more detailed information, you can check out Marblehead weather in October.

In September, the weather is generally mild, with average temperatures ranging from a minimum of 11°C (53°F) to a comfortable maximum of 26°C (80°F), while experiencing around 97 mm (3.8 in) of precipitation over about 8 days. Humidity levels are relatively moderate at 71%. In contrast, November brings a notable drop in temperatures, with averages between -9°C (16°F) and 19°C (67°F). The month sees an increase in precipitation to 115 mm (4.5 in) over approximately 11 days, accompanied by higher humidity levels at 84%. For more details on the weather during this month, check out Marblehead weather in November.

In September, temperatures are considerably milder, with a minimum of 11°C (53°F) and an average of 18°C (65°F), peaking at 26°C (80°F). The month experiences about 97 mm (3.8 in) of precipitation over 8 days, and the humidity sits at a comfortable 71%. In contrast, December brings a significant drop in temperature, with lows plummeting to -16°C (4°F) and an average of just 3°C (38°F), while highs reach only up to 14°C (58°F). This winter month sees increased precipitation, totaling 150 mm (5.9 in) over 10 days, and a higher humidity at 81%. For more details on the weather conditions in December, you can check Marblehead weather in December.

Compare Marblehead's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Marblehead

As summer gives way to fall, September in Marblehead presents a delightful transition, marked by a pleasant average temperature that encourages outdoor activities. While the maximum highs still echo the warmth of summer, a notable drop in temperatures brings a refreshing coolness to the mornings and evenings. Compared to the sweltering heat of July and the steamy humidity of August, September offers a balanced atmosphere with a moderate degree of humidity and occasional rain, contributing to the lushness of the landscape. With around eight rainy days, this month sets the stage for the beautiful autumn foliage ahead. For more insights into the seasonal shifts, check out Marblehead Climate.