August Weather in Chelsea, United States

Last updated: February 24, 2025

In August, Chelsea, United States, showcases a lively summer atmosphere characterized by a maximum temperature reaching 35°C (95°F). The average temperature settles comfortably at 25°C (77°F), providing an ideal climate for outdoor activities. However, with a minimum temperature of 15°C (60°F), cool mornings and evenings offer a pleasant contrast. This month experiences notable precipitation, with 126 mm (5.0 in) spread over 14 days, contributing to the region's lush greenery and vibrant scenery. Average humidity rests at a moderate 65%, enhancing the summer feel while ensuring that the air remains refreshing and enjoyable.

August Temperature in Chelsea

In August, Chelsea, United States, experiences warm and inviting temperatures, marking the peak of summer. The average temperature hovers around a comfortable 25°C (77°F), with daily highs reaching up to 35°C (95°F) and lows not dipping below 15°C (60°F). This trend reflects a gradual rise in warmth throughout the summer months, peaking from the already warm July. The pleasant weather makes August an ideal time for outdoor activities, offering residents and visitors sunny days perfect for enjoying the vibrant local parks and attractions. As the season draws to a close, temperatures will start to shift, ushering in the coolness of September.

August Weather in Chelsea: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Chelsea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343743536372787670614639
Data source: Temperature data for Chelsea 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.

August Precipitation in Chelsea

In August, Chelsea experiences a notable surge in precipitation, with an average of 126 mm (5.0 in), marking it as one of the wetter months of the year alongside July. This increase is reflected in the 14 rainy days, maintaining a steady trend from the previous month. As summer transitions into fall, the region sees an uptick in moisture, contributing to the lush landscapes characteristic of this time. Interestingly, while August's rainfall is significant, it slightly dips compared to July's 144 mm (5.6 in), suggesting a gradual wind-down of the summer deluge. Overall, this pattern highlights Chelsea's dynamic climate, where the summer months can deliver ample rainfall, setting the stage for the dryer spells of early autumn.

August Precipitation Trends in Chelsea

The chart displays monthly precipitation patterns in Chelsea, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec66107103111118941441269113082102
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Chelsea

In Chelsea, United States, August brings a slight uptick in humidity, averaging 65%, which is a subtle increase from the preceding month's 62%. This slight rise marks the beginning of a seasonal shift as summer transitions into fall, with humidity levels remaining relatively moderate compared to the wetter months of winter and early spring. Notably, the summer months (June through August) exhibit a downward trend in humidity, showcasing a peak in January at 84%, gradually tapering to 62% by July. As the year progresses, humidity levels are expected to climb again as autumn approaches, creating a dynamic and constantly evolving climate landscape in Chelsea.

August Average Humidity in Chelsea

This chart illustrates the average monthly humidity levels in Chelsea, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Chelsea

In August, Chelsea experiences a UV Index of 9, placing it firmly in the very high exposure category. With a burn time of just 15 minutes, this month warrants careful sun safety measures. Following a summer of consistently high UV readings—where June and July both peaked at 10—August maintains a slightly lower yet still intense level of UV radiation. As the summer sun begins to wane in September, the UV Index decreases to 8, hinting at a gradual transition toward safer sun exposure. For those planning outdoor activities, it’s crucial to stay informed about these UV trends and protect your skin accordingly. For more details, check out the Chelsea UV Index.

Maximum UV Index Levels in Chelsea for August

The chart shows the monthly maximum UV Index (UVI) for Chelsea in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Chelsea August 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.

August Sunshine in Chelsea

In Chelsea, United States, August shines brightly with 319 hours of sunshine, continuing the summer's trend but slightly dipping from July's peak of 353 hours. This month is part of a remarkable trajectory where daylight hours show a steady ascent from the depths of winter, starting at just 152 hours in January. As the seasons progress, the sunshine builds to a summertime crescendo, peaking in July before gracefully descending into the early fall. September continues to bask in warmth with 279 hours, but the gradual decline in sunlight hours serves as a gentle reminder of the shifting seasons ahead. Overall, Chelsea’s sunlight pattern reflects a vibrant cycle of brightness, culminating beautifully in August's golden days.

Monthly Sunshine Duration in Chelsea: August Highlighted

The August sunshine duration represents the total number of hours Chelsea experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec152h181h254h250h283h322h353h319h279h231h219h181h
Data source: Chelsea August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chelsea During August

In Chelsea, the likelihood of enjoying sunny weather in August takes a noticeable dip, with only a 29% chance of sun compared to the preceding summer months. This decline stands out against a backdrop of higher percentages earlier in the year, notably in March with 56% and a more robust 44% in July. Interestingly, the trend suggests that as summer progresses, the optimism for sunny skies wanes, bringing August down to the second-lowest chance of sunshine throughout the year. Looking ahead to September, the likelihood rebounds to 47%, indicating that summer's grip might loosen, fostering a return to sunnier days as autumn approaches.

Percentage of Sunny Days in August in Chelsea

The chart illustrates the percentage of sunny days in Chelsea throughout the year, with August 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 Chelsea experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%31%57%45%42%38%44%29%47%37%55%31%
Data source: Chelsea August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chelsea in August

In Chelsea, United States, daylight duration follows a distinctive seasonal rhythm throughout the year. Starting with the shortest winter days in January at 9 hours, sunlight gradually increases, peaking at 14 hours during the vibrant months of May, June, and July. As summer transitions into fall, August sees a slight dip in daylight to 13 hours, signaling the gradual approach of shorter days. This pattern continues into September with 12 hours of daylight, before falling back to 11 hours in October. The trend of diminishing daylight continues through the colder months, culminating in another return to 9 hours in December. The cyclical nature of daylight in Chelsea embodies the essence of seasonal change, offering residents a dynamic experience of light throughout the year.

Average Daylight Hours in Chelsea for August

The chart illustrates the variation in daylight duration in Chelsea throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 38m10h 40m11h 58m13h 18m14h 26m14h 59m14h 41m13h 41m12h 24m11h 4m9h 55m9h 19m
Data source: Chelsea daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Chelsea

In August, Chelsea experiences a gentle ebb in its breezes, with average wind speeds dipping to 2.5 m/s (6 mph). This marks a continuation of a trend observed since mid-summer, where July also recorded similar calm conditions. The gradual decline from the moderate winds of early summer illustrates a seasonal shift, as the warmer months give way to the cooler, breezier fall. Interestingly, August's wind speeds align with the year's lowest figures, setting a serene backdrop for warm evening strolls. As the city transitions toward September, residents can look forward to a slight uptick in wind activity, signaling the renewal that comes with the changing seasons.

Average August Wind Speed in Chelsea

The chart displays monthly wind speed patterns in Chelsea, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.53.83.53.32.92.52.5 m/s3.23.23.23.0
Data source: Chelsea August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Chelsea Compares to Other Months

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

August and January showcase a stark contrast in weather conditions. In August, temperatures range from a pleasant 15°C (60°F) to a scorching 35°C (95°F), with an average of 25°C (77°F), while January experiences a significant chill with temperatures dipping between -18°C (0°F) and a max of 19°C (66°F), averaging just 1°C (35°F). Precipitation is more abundant in August, totaling 126 mm (5.0 in) over 14 days, compared to January’s 66 mm (2.6 in) over 8 days. Additionally, humidity levels in January are higher at 84%, contrasting sharply with the 65% humidity typical in August. For additional insights into January conditions, check out Chelsea weather in January.

August and February present stark contrasts in weather. In August, temperatures range from a mild 15°C (60°F) to a scorching 35°C (95°F), with an average of 25°C (77°F) and around 126 mm (5.0 in) of rain over approximately 14 days, accompanied by a moderate humidity level of 65%. In contrast, February experiences much colder conditions, with temperatures ranging from a chilly -16°C (4°F) to a maximum of 23°C (73°F) and an average of just 3°C (37°F). This winter month typically sees about 107 mm (4.2 in) of precipitation over 10 days, coupled with a higher humidity of 82%. For a more detailed overview of February weather, check out Chelsea weather in February.

When comparing the weather in August and March, it's clear that they present contrasting climates. August boasts warmer temperatures with a minimum of 15°C (60°F) and an average of 25°C (77°F), peaking at 35°C (95°F). In contrast, March experiences much colder temperatures, with a minimum of -9°C (16°F) and an average of only 6°C (43°F), though it can reach up to 27°C (80°F) on warmer days. Additionally, August has higher precipitation levels, with 126 mm (5.0 in) over about 14 days, while March sees 103 mm (4.0 in) of rain across approximately 10 days, and slightly higher humidity in March at 81% compared to August's 65%. For more insights on March weather specifics, visit Chelsea weather in March.

The weather in August is notably warmer than in April, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), compared to April's range of -1°C (31°F) to 29°C (85°F). While both months experience significant precipitation, August sees a slightly higher total of 126 mm (5.0 in) over 14 days, whereas April has 111 mm (4.4 in) across 12 days. Humidity levels are also higher in April at 78%, compared to 65% in August, which can make the cooler spring evenings feel more brisk. For more detailed insights on April weather, check out Chelsea weather in April.

When comparing the weather in August and May, a notable difference emerges in temperature and humidity. August typically sees warmer temperatures, with minimums around 15°C (60°F) and maximums reaching up to 35°C (95°F), while May starts cooler, with minimums at 2°C (37°F) and maximums of 32°C (90°F). Precipitation levels are somewhat similar, with August receiving 126 mm (5.0 in) over 14 days and May slightly less at 118 mm (4.6 in) over 12 days. Humidity is slightly higher in May at 69% compared to August's 65%. For a closer look at the weather specifics, you can check the details at Chelsea weather in May.

When comparing the weather in June and August, both months feature warm temperatures, but August tends to be slightly warmer on average. In June, temperatures range from a minimum of 10°C (50°F) to a maximum of 35°C (96°F), with an average of 22°C (73°F), while August has a minimum of 15°C (60°F) and an average of 25°C (77°F). Precipitation is somewhat higher in August, with 126 mm (5.0 in) spread over 14 days, compared to June's 94 mm (3.7 in) over 13 days. Humidity levels are also relatively close, with June being slightly more humid at 69%, compared to August’s 65%. For more details on what to expect during June, you can check out Chelsea weather in June.

In comparing July and August weather, both months exhibit similar temperature ranges, although August tends to be slightly cooler. July has an average temperature of 26°C (79°F) with a maximum of 36°C (97°F), while August features an average of 25°C (77°F) peaking at 35°C (95°F). Precipitation levels are also notable; July sees 144 mm (5.6 in) of rain over 14 days compared to August's 126 mm (5.0 in) with the same number of rainy days. Additionally, humidity is a bit higher in August at 65%, compared to July's 62%. For more detailed insights on July temperatures, you can check Chelsea weather in July.

August and September exhibit notable differences in weather patterns. August typically features warmer temperatures, with a minimum of 15°C (60°F) and an average of 25°C (77°F), peaking at 35°C (95°F). In contrast, September sees a drop in the minimum temperature to 8°C (47°F) and an average of 21°C (71°F), while the maximum remains slightly lower at 34°C (93°F). Precipitation also declines from 126 mm (5.0 in) over 14 days in August to 91 mm (3.6 in) over 10 days in September, though humidity remains relatively high, increasing from 65% to 68%. For more detailed weather information, check out Chelsea weather in September.

In August, the weather is typically warm, with average temperatures around 25°C (77°F) and daytime highs reaching up to 35°C (95°F), while nights remain mild at a minimum of 15°C (60°F). This month sees significant rainfall, with precipitation totaling 126 mm (5.0 in) over approximately 14 days, contributing to a humidity level of 65%.

In contrast, October presents a much cooler climate, where the average temperature drops to 16°C (61°F) and nights can get chilly, with minimums around 3°C (37°F). Although October experiences slightly higher precipitation at 130 mm (5.1 in), it typically rains for fewer days—only about 10. Additionally, the humidity rises to 74%, creating a distinct change in the atmosphere. For those interested in more specifics, you can check out Chelsea weather in October.

The weather in August is characterized by warm, summer temperatures, with averages around 25°C (77°F) and highs reaching up to 35°C (95°F). In contrast, November brings a significant drop in temperatures, with an average of just 8°C (47°F) and lows plunging to -9°C (17°F). While August experiences more precipitation at 126 mm (5.0 in), November has less at 82 mm (3.2 in), but the increased humidity in November at 82% compared to August's 65% can make the chill feel more penetrating. For those interested in more details about November's climate, you can check out the information provided here: Chelsea weather in November.

In August, the weather is warm and typically ranges from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), with an average temperature of 25°C (77°F). The month sees significant precipitation, with around 126 mm (5.0 in) spread over 14 days and a humidity level of 65%. In contrast, December experiences much colder conditions, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 19°C (66°F) and an average of just 4°C (39°F). Although December has less rainfall at 102 mm (4.0 in) over 10 days, it also has higher humidity at 80%. For more information, you can check Chelsea weather in December.

Compare Chelsea's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Chelsea

As summer reaches its peak in Chelsea during August, the weather is characterized by warm temperatures and a notable increase in humidity. Compared to the cooler months, August can be quite toasty, with maximum temperatures often soaring to around 35°C (95°F). However, this warmth doesn't come without its share of moisture, as the city experiences precipitation on about 14 days throughout the month, contributing to an average rainfall of 126 mm (5.0 in). This blend of heat and humidity creates a unique summer atmosphere, setting August apart from the milder conditions of other months. For a deeper insight into Chelsea's year-round climate patterns, check out Chelsea Climate.