Last updated: February 24, 2025
In Greenwich, United States, the month of August showcases a delightful summer profile marked by a maximum temperature peaking at 34°C (93°F) and a comfortable average of 24°C (75°F). The weather can vary, with minimum temperatures dipping to 15°C (59°F), offering a refreshing reprieve. Rainfall adds to the mix, totaling 123 mm (4.8 in) across 14 days, contributing to a humidity level of 65% that accentuates the vibrant atmosphere. Whether basking in the sun or enjoying occasional showers, August presents a dynamic experience in this picturesque locale.
In August, temperatures in Greenwich, United States, reach their peak, with minimums averaging around 15°C (59°F) and maximums soaring to 34°C (93°F). The average temperature of 24°C (75°F) encapsulates the warmth of summer, encouraging outdoor activities and social gatherings. This month marks a notable transition, as the region enjoys some of the hottest weather of the year before the cooler autumn temperatures begin to set in. With humidity levels often on the rise, August serves as a vibrant reminder of summer's vitality, paving the way for the gradual shift into the more temperate months ahead.
In August, Greenwich experiences a notable surge in precipitation, averaging 123 mm (4.8 in) over 14 days—marking it as one of the wetter months of the year. This increase follows the significant rainfall of 143 mm (5.6 in) recorded in July, suggesting a trend of elevated moisture in the summer months. While June and July also bring substantial rains, August stands out with a distinct uptick, hinting at the transitional nature of late summer weather. As the warm season approaches its end, August serves as a reminder of the lush vitality that withstands through the sweltering heat, setting the stage for the drier fall months that follow.
August in Greenwich, United States, typically sees a humidity level of 65%, reflecting a slight increase from the preceding month of July, which recorded 62%. This moderate humidity signals a shift away from the drier summer months, hinting at the approach of autumn. Throughout the year, humidity levels seem to follow a distinct curve—starting high in winter, peaking in the colder months with values around 84-82%, and gradually declining until reaching their lowest in July. As summer draws to a close, August's humidity suggests a transitional phase, setting the stage for the rising levels once again seen in the fall months. Overall, the data illustrates a dynamic interplay between seasonal shifts and humidity, creating a unique climate experience in Greenwich.
In August, Greenwich experiences a UV Index of 9, categorizing the sun's rays as very high. This intensity means that, like in July, residents and visitors will have a burn time of just 15 minutes before they risk skin damage. As summer reaches its peak, the UV levels remain consistent from the previous month, underscoring the importance of sun safety. Following August, the UV Index begins to decline slightly in September, transitioning back through moderate and high levels as autumn approaches. Awareness of these trends is crucial for effective sun protection and enjoyment of outdoor activities. For more details, visit the Greenwich UV Index.
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August in Greenwich shines brightly with 315 hours of glorious sunshine, making it a perfect continuation of the warm summer months. Following a peak in July, which boasts 339 hours, August still holds onto significant sunlight, only slightly dipping as the season transitions towards fall. This trend indicates a gradual but steady decrease in daylight, as the days shorten from summer's peak. Notably, sunshine hours have been on a consistent rise since January’s mere 149 hours, culminating in a sun-soaked summer. As the year unfolds, the contrast with the upcoming months becomes evident, with September offering 278 hours and October dropping further to 218 hours, showcasing a delightful but fleeting summer luxury in Greenwich.
In Greenwich, United States, the likelihood of sunny weather in August dips to a relatively low 29%, making it one of the cloudier months of the year. This follows a trend observed from the summer months, where June and July also showcase diminished chances of sunshine, at 39% and 41%, respectively. Interestingly, as the year unfolds, the probability of sunny days generally experiences fluctuations, with January boasting a surprisingly higher 49% chance of sunshine. However, as summer wanes and September approaches, the odds of sun increase again to 44%, suggesting that while August may be less favorable for sun-seekers, the weather brightens as autumn nears. Overall, those planning for outdoor activities in August should not count on a sun-drenched experience.
In August, Greenwich, United States, experiences a gradual decline in daylight duration, offering around 13 hours of light as summer begins to wane. This follows the peak in June, with its 15 hours of sunlight, creating a noticeable trend where daylight hours steadily increase through the spring months, reaching their zenith in early summer. As the seasons transition into autumn, there is a gentle drop in daylight, with September continuing this trend at 12 hours, and October further reducing to 11 hours. This rhythmic pattern reflects nature's cycle, inviting residents to savor the lingering warmth of summer while subtly preparing for the shorter days ahead.
In August, Greenwich experiences its lowest average wind speed of the year, clocking in at a gentle 2.4 m/s (5 mph). This decline reflects a gradual trend throughout the summer months, where the winds have ebbed from a mild 3.6 m/s (8 mph) in March to the calm of late summer. As temperatures peak, the briskness of spring gives way to a more tranquil atmosphere, with winds often whispering rather than howling. However, as the seasons shift towards autumn, a resurgence in wind speeds can be anticipated, evidenced by an increase to 3.0 m/s (7 mph) in September. This cyclical pattern illustrates the dynamic interplay between temperature and wind, making the late summer months feel particularly serene in this picturesque coastal town.
The weather in Greenwich 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 Greenwich and find detailed weather information for every month.
August and January present stark contrasts in weather conditions. In August, temperatures range from a mild 15°C (59°F) to a warm 34°C (93°F) with an average of 24°C (75°F), accompanied by moderate humidity at 65%. However, this summer month sees considerable precipitation, with 123 mm (4.8 in) spread over 14 days. In contrast, January experiences much colder temperatures, with a min of -18°C (0°F) and a max of 18°C (64°F), averaging around 0°C (33°F). While there is less precipitation in January, totaling 69 mm (2.7 in) over just 8 days, the humidity is notably higher at 84%. For more detailed insights, you can check Greenwich weather in January.
August and February present strikingly contrasting weather conditions. August boasts warm temperatures, with averages around 24°C (75°F) and highs reaching up to 34°C (93°F), accompanied by a moderate level of precipitation at 123 mm (4.8 in) over approximately 14 days and a humidity of 65%. In stark contrast, February experiences much colder conditions, with an average temperature of just 2°C (35°F) and dramatic lows that can dip as low as -16°C (3°F). Although February has slightly less precipitation at 101 mm (4.0 in) over about 11 days, the humidity is higher at 82%, contributing to a distinctly frigid feel. For more detailed information, check out Greenwich weather in February.
August and March exhibit stark contrasts in weather conditions. August typically boasts milder temperatures with a minimum of 15°C (59°F) and a maximum of 34°C (93°F), while March experiences much colder temperatures, dipping down to a minimum of -10°C (15°F) and averaging around 5°C (41°F). Despite August being warmer, it sees more rainfall, with 123 mm (4.8 in) over 14 days, compared to March, which has 93 mm (3.7 in) of precipitation over just 10 days. Additionally, humidity levels are higher in March at 81%, compared to 65% in August, contributing to a different overall feel during these months. For more detailed insights on March weather, you can check out Greenwich weather in March.
August and April present contrasting weather patterns, reflecting the transition from summer to spring. In August, temperatures range from a minimum of 15°C (59°F) to a maximum of 34°C (93°F), with an average temperature of 24°C (75°F). This month sees significant humidity at 65% and a total precipitation of 123 mm (4.8 in) over approximately 14 days. Conversely, April experiences much cooler conditions, with temperatures varying from a low of -2°C (30°F) to a high of 27°C (81°F) and an average of 10°C (51°F). Although April is wetter with 114 mm (4.5 in) of rainfall over about 12 days, it also has higher humidity levels at 78%. This stark contrast highlights the warm, humid days of August compared to the cooler, more variable weather of April. For a detailed look at weather specifics in April, visit Greenwich weather in April.
When comparing the weather conditions in August and May, notable differences emerge. August experiences a wider temperature range, with minimums of 15°C (59°F) and maximums soaring to 34°C (93°F), while May’s temperatures are considerably cooler, ranging from a minimum of 2°C (36°F) to a maximum of 31°C (89°F). Both months see similar precipitation levels, with August receiving 123 mm (4.8 in) over 14 days and May slightly less at 114 mm (4.5 in) over 12 days. Interestingly, humidity levels in May are higher at 69%, compared to August’s 65%, which can make May feel a bit more muggy despite the cooler temperatures. For a closer look at May's weather specifics, check out Greenwich weather in May.
In comparing the weather between June and August, we observe that August tends to be slightly warmer, with average temperatures around 24°C (75°F), compared to June's average of 21°C (71°F). Both months can reach highs of 34°C (93°F), but August shows a higher minimum temperature of 15°C (59°F) versus June's more refreshing 9°C (49°F). Precipitation is more frequent in August, with about 123 mm (4.8 in) over 14 days, compared to June's 91 mm (3.6 in) over 12 days. Interestingly, humidity levels are higher in June at 69%, compared to 65% in August. For further details on June's weather, you can check Greenwich weather in June.
August weather shows a slightly cooler trend compared to July, with average temperatures decreasing from 25°C (77°F) in July to 24°C (75°F) in August. While both months experience warm conditions, August has a maximum temperature of 34°C (93°F) compared to July's peak of 35°C (96°F). In terms of precipitation, July witnesses slightly higher rainfall at 143 mm (5.6 in) over 13 days, whereas August records 123 mm (4.8 in) over 14 days, indicating that August is somewhat wetter despite having less total rainfall. The humidity levels are also comparable, with August at 65% and July at 62%. For more detailed information on July weather, you can check Greenwich weather in July.
August typically presents warmer conditions compared to September, with average temperatures reaching 24°C (75°F) and a maximum of 34°C (93°F), while September sees a drop in average temperature to 20°C (69°F) and a maximum of 33°C (91°F). While August experiences more rainfall, totaling 123 mm (4.8 in) over 14 days, September has less precipitation at 98 mm (3.8 in) over just 9 days. Humidity levels remain relatively similar, with August at 65% and September slightly higher at 68%. For a detailed overview of weather conditions in September, you can visit Greenwich weather in September.
In comparing the weather between August and October, notable differences emerge. August experiences warmer temperatures, with a minimum of 15°C (59°F) and an average high of 34°C (93°F), creating a summery atmosphere. In contrast, October sees significantly cooler conditions, featuring a minimum of 3°C (38°F) and an average high of 32°C (90°F). Despite August having slightly lower precipitation at 123 mm (4.8 in) over 14 days compared to October’s 132 mm (5.2 in) over 11 days, October's humidity levels are higher at 74%, rising from August's 65%. For more detailed information, you can check Greenwich weather in October.
August weather is characterized by warm temperatures, with a minimum of 15°C (59°F) and an average of 24°C (75°F), reaching highs of up to 34°C (93°F). With around 123 mm (4.8 in) of precipitation over 14 days, humidity levels remain moderately high at 65%. In contrast, November brings much colder conditions, featuring a minimum temperature of -9°C (15°F) and an average of only 8°C (46°F), with a maximum temperature of 23°C (74°F). There is less overall precipitation in November, totaling 86 mm (3.4 in) over 9 days, but the humidity is higher at 82%. For more detailed information, see Greenwich weather in November.
August and December present a stark contrast in weather conditions. In August, temperatures range from a minimum of 15°C (59°F) to a maximum of 34°C (93°F), with an average of 24°C (75°F). The month also experiences significant rainfall, totaling around 123 mm (4.8 in) over 14 days, combined with a moderate humidity of 65%. In comparison, December sees much colder temperatures, with a minimum dropping to -12°C (11°F) and an average around 3°C (38°F), peaking at 17°C (63°F). Precipitation slightly decreases to 111 mm (4.4 in) over 11 days, accompanied by higher humidity levels at 80%. For more details on December weather patterns, you can visit Greenwich weather in December.
As the summer season reaches its peak, August in Greenwich stands out with its warm temperatures and a notable increase in precipitation. Unlike the milder months that precede it, August often features higher maximum temperatures, making it a great time for outdoor activities while also bringing a mix of humidity that can make the weather feel more intense. The average temperature remains comfortably warm, though the increased rainfall over about half the month can bring refreshing breaks to the heat. Those planning to visit should be prepared for occasional showers, reminding everyone that summer's warmth can also dance with unexpected storms. For a deeper dive into the climatic trends of this beautiful region, explore the details at Greenwich Climate.