Last updated: February 24, 2025
In August, Southampton, United States experiences pleasant summer weather, characterized by a maximum temperature of 28°C (83°F) and an average of 23°C (74°F). With minimum temperatures dipping to 17°C (63°F), the climate offers a comfortable outdoor atmosphere. However, residents and visitors should prepare for approximately 100 mm (3.9 in) of rainfall spread across 10 days, resulting in a humidity level of 65%. This mix of warm temperatures and occasional showers creates an inviting backdrop for summer activities while emphasizing the importance of staying hydrated and planning accordingly.
August in Southampton brings the height of summer, with temperatures steadily rising from the earlier months of the year. With a minimum of 17°C (63°F) and an average of 23°C (74°F), the city experiences warmth that makes outdoor activities inviting. The maximum temperature reaches around 28°C (83°F), marking a slight dip from July's peak, but still ensuring plenty of sunny days perfect for enjoying the coast. As one of the warmest months, August embodies the essence of summer, paving the way for a gradual transition into the cooler autumn months that follow.
In August, Southampton experiences a moderate precipitation amount of 100 mm (3.9 in), slightly below the sentiment of the preceding summer months. This rainfall is spread across 10 days, contributing to a pleasant yet occasionally damp atmosphere as summer begins its slow transition into fall. Notably, August's totals reflect a continuation of the region’s overall wet pattern, with precipitation values ebbing from the higher peaks earlier in the season—most notably a notable 139 mm in April. As we shift into September, a slight decrease in precipitation is expected, emphasizing the seasonal rhythm of Southampton’s weather, where summer rain gives way to the crispness of autumn.
In Southampton, August brings a slight uptick in humidity, averaging at 65%, which is a notable increase from the drier months of June and July, where levels dipped to 69% and 62% respectively. This summer trend follows the pattern of a gradual decline in humidity from a high of 84% in January through to the mid-summer months. As the year progresses, humidity levels begin to rise again, peaking in late fall and winter. The transition into September shows a rebound to 68%, signaling that the wetter months are just around the corner. Southampton's August humidity serves as a reminder of the region's coastal climate, which consistently blends the warmth of summer with the palpable moisture that characterizes its seasonal shifts.
In August, Southampton experiences a UV Index of 9, classifying it within the very high exposure category, with a burn time of just 15 minutes. This trend follows the peak summer months of June and July, where the UV Index reached its maximum at 10. As we transition into late summer, the UV levels remain elevated, necessitating caution for sun exposure. Notably, May through August consistently show high UV Index values, a reminder that protective measures are essential during these months. As the seasons shift into fall, a gradual decrease in UV exposure returns, with September seeing a slightly lower Index of 8. For a comprehensive look at the UV Index throughout the year in Southampton, check out Southampton UV Index.
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August in Southampton shines brightly with 327 hours of glorious sunshine, nestled comfortably between the sun-drenched peaks of July and the cooler days of September. This summer month showcases a slight dip from July's impressive 349 hours, yet it continues to deliver abundant warmth and light, making it perfect for outdoor adventures. As the summer transitions into fall, August stands out with significantly more sunshine compared to the winter months, which struggle to reach even 185 hours in February. With longer days still holding sway, August remains a crucial time for enjoying the sun's embrace before the crispness of autumn sets in.
August in Southampton sees a moderate chance of sunny weather, with only a 34% likelihood of clear skies. This marks a notable decline in sunshine compared to the earlier summer months, where July maintained a 45% chance. Interestingly, the trend shows that while the region basks in longer days and warmer temperatures during the summer, the sunniest months are actually found in the spring and fall, with November peaking at 54%. As August rolls in, residents and visitors might find themselves reaching for umbrellas more frequently, as this month transitions towards the cooler and cloudier days of autumn.
In August, Southampton enjoys a delightful 13 hours of daylight, marking a gradual transition from the sun-drenched days of summer. Following the peak of 15 hours in June, daylight starts to decline, yet August still offers ample time to bask in the sun. This reduction reflects a broader trend, with daylight gradually waning until the shorter days of late fall and winter set in. As summer fades, residents can still relish the abundant brightness in early August, making it an ideal time for outdoor activities before the crispness of autumn takes hold. With daylight slipping to 12 hours in September, August remains a cherished month for taking in the warm summer's glow.
In August, Southampton experiences a continuation of the gentle breezes that began in July, with an average wind speed of 4.6 m/s (10 mph). This marks a noticeable decline from the earlier months, where wind speeds were consistently higher, peaking at 7.0 m/s (16 mph) in January. As summer gives way to early autumn, the winds retain a certain tranquility, setting a serene backdrop for seaside activities. Following August, we can expect a slight uptick in wind speed as September approaches, suggesting that the volatile coastal climate of Southampton is just around the corner, reminding us of nature's constant ebb and flow.
The weather in Southampton 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 Southampton and find detailed weather information for every month.
August experiences much warmer temperatures, with daily averages around 23°C (74°F) and highs reaching up to 28°C (83°F). It is characterized by a moderate level of precipitation, averaging 100 mm (3.9 in) over about 10 days, along with a humidity level of 65%. In stark contrast, January brings a frigid chill, with an average temperature of just 2°C (36°F) and lows dipping to -13°C (8°F). The month sees slightly less precipitation at 90 mm (3.5 in) over approximately 9 days, but the humidity is notably higher at 84%. For more detailed insights, you can check out Southampton weather in January.
August and February present starkly contrasting weather conditions. In August, temperatures are milder, ranging from a minimum of 17°C (63°F) to a maximum of 28°C (83°F), with an average of 23°C (74°F). The month sees around 100 mm (3.9 in) of precipitation over approximately 10 days and a humidity level of 65%. In contrast, February plunges into much colder temperatures, with lows reaching -13°C (10°F) and highs only reaching 12°C (53°F), averaging just 2°C (37°F). The month is wetter, accumulating 127 mm (5.0 in) of precipitation over about 12 days and featuring higher humidity at 82%. For a closer look at Southampton weather in February, you can explore more details about the month’s climate.
August and March present contrasting weather patterns, with August showcasing warmer temperatures that range from a minimum of 17°C (63°F) to a maximum of 28°C (83°F) and an average of 23°C (74°F). In contrast, March experiences much cooler temperatures, peaking at 15°C (59°F) and averaging just 4°C (39°F), with nights dipping as low as -7°C (20°F). While both months receive precipitation on about 10 days, March has slightly higher precipitation at 112 mm (4.4 in) compared to August's 100 mm (3.9 in), and March's humidity is notably higher at 81%, compared to August's 65%. For more details on March weather, check out Southampton weather in March.
April and August present strikingly different weather conditions. In April, temperatures range from a chilly 0°C (32°F) at night to a mild 17°C (63°F) during the day, with an average of 8°C (47°F). The month sees approximately 139 mm (5.5 in) of rainfall over 12 days and a higher humidity level of 78%, creating a damp atmosphere. In contrast, August typically offers warmer temperatures, with a minimum of 17°C (63°F), an average of 23°C (74°F), and a maximum reaching 28°C (83°F). The precipitation in August is slightly lower at 100 mm (3.9 in), spread over about 10 days, and the humidity sits at 65%, giving a more comfortable feel compared to April. For a detailed overview, you can read more about Southampton weather in April.
When comparing the weather in August to May, it is clear that August offers significantly warmer temperatures, with a minimum of 17°C (63°F) and an average of 23°C (74°F), peaking at 28°C (83°F). In contrast, May experiences much cooler conditions, where the minimum temperature is just 4°C (39°F), with an average of 13°C (55°F) and a maximum of 21°C (70°F). Additionally, while both months see a considerable amount of precipitation, May has slightly higher total rainfall at 130 mm (5.1 in) over 13 days compared to August's 100 mm (3.9 in) over 10 days. Humidity levels are also relatively high in both months, with May at 69% and August at 65%. For a more detailed look at the weather specifics, refer to Southampton weather in May.
When comparing the weather in August and June, August tends to be warmer with an average temperature of 23°C (74°F) compared to June's average of 18°C (65°F). The minimum temperature in August is significantly higher at 17°C (63°F) versus June's 11°C (52°F). While August experiences more precipitation overall, with 100 mm (3.9 in) over 10 days, June has slightly less at 72 mm (2.8 in) across 8 days. Both months have similar humidity levels, with August at 65% and June at 69%. For a more detailed look at June's weather, visit Southampton weather in June.
In comparing the weather of August and July, we observe that temperatures are quite similar, with August featuring a minimum of 17°C (63°F), an average of 23°C (74°F), and a maximum of 28°C (83°F), slightly trailing July's 16°C (62°F) minimum and 29°C (84°F) maximum. While both months see a comparable average temperature, July is slightly warmer at its peak. Precipitation levels are also close, with August recording 100 mm (3.9 in) over 10 days and July with 105 mm (4.1 in) on 11 days, indicating a similar pattern of rainfall. Notably, humidity is a touch higher in August at 65% compared to July's 62%. For a more detailed look at July's weather, you can refer to this link: Southampton weather in July.
In August, temperatures typically range from a minimum of 17°C (63°F) to a maximum of 28°C (83°F), with an average of 23°C (74°F). The month experiences about 100 mm (3.9 in) of precipitation across 10 days, and humidity levels hover around 65%. In contrast, September sees a slight drop in temperatures, with a minimum of 12°C (55°F), an average of 20°C (69°F), and a maximum of 27°C (81°F). Precipitation remains similar at 97 mm (3.8 in) over the same number of days, but humidity increases slightly to 68%. For more detailed insights, check out Southampton weather in September.
August typically enjoys warmer temperatures, with an average of 23°C (74°F) and highs reaching up to 28°C (83°F). The weather is characterized by relatively moderate humidity levels around 65%, but it also sees considerable rainfall, averaging 100 mm (3.9 in) over about 10 days.
In contrast, October experiences a noticeable drop in temperatures, with an average of 16°C (62°F) and minimums dipping to 6°C (42°F). The month is generally wetter, with precipitation rising to 159 mm (6.2 in) across approximately 13 days, and humidity levels slightly higher at 74%. This shift results in a significant change from the summer warmth to cooler autumn conditions. For a detailed look at October weather specifics, check out Southampton weather in October.
August and November present starkly contrasting weather patterns. In August, temperatures typically range from a mild 17°C (63°F) at night to a warm 28°C (83°F) during the day, with average humidity at 65% and a total precipitation of 100 mm (3.9 in) spread over 10 days. In comparison, November brings a chillier climate with temperatures dipping as low as -5°C (24°F) at night and reaching highs of only 19°C (67°F). The month experiences a higher humidity level of 82%, along with slightly more precipitation at 111 mm (4.4 in), also over 10 days. For a deeper insight into what to expect, you can check out Southampton weather in November.
August and December present starkly contrasting weather conditions. In August, the temperatures are generally mild, with a minimum of 17°C (63°F) and a pleasant average of 23°C (74°F), peaking at a maximum of 28°C (83°F). This month experiences moderate precipitation of 100 mm (3.9 in) over approximately 10 days, accompanied by a humidity level of 65%. In contrast, December brings much colder temperatures, with lows dropping to -9°C (16°F) and an average of just 5°C (42°F), reaching a maximum of 16°C (61°F). The precipitation is higher at 152 mm (6.0 in) over 11 days, and the humidity also increases, averaging around 80%. For a closer look at the specifics, you can check Southampton weather in December.
August in Southampton is characterized by warmer temperatures and a noticeable rise in humidity, making it a peak summer month compared to the cooler, drier conditions of earlier summer. With average highs reaching up to 28°C (83°F) and a healthy dose of summer rainfall, this month offers a unique mix of warmth and occasional showers, perfect for those who enjoy balmy days interspersed with refreshing breezes. While the 100 mm of precipitation over about 10 days can be a slight disruption, it also contributes to the lush greenery typical of late summer. For a more detailed look at the weather patterns throughout the year, check out Southampton Climate.