Last updated: February 24, 2025
Experience the charm of Southampton, United States in July, where summer truly shines. With maximum temperatures reaching 29°C (84°F) and an average of 23°C (73°F), the warmth invites outdoor adventures and leisurely strolls. Evenings cool down to a pleasant 16°C (62°F), providing a perfect backdrop for relaxation. However, be prepared for occasional showers; July sees about 105 mm (4.1 in) of rainfall over 11 days, contributing to the lush landscape. The humidity level hovers around 62%, adding a touch of tropical feel to this idyllic summer month. Whether you’re soaking up the sun or enjoying the refreshing rain, Southampton in July offers a delightful blend of warmth and vitality.
In July, Southampton experiences its warmest temperatures of the year, with minimums averaging 16°C (62°F) and maximums reaching up to 29°C (84°F). The overall average temperature hovers around 23°C (73°F), providing residents and visitors with a pleasant summer climate ideal for outdoor activities. This month stands in stark contrast to the frigid January, where temperatures can plummet to as low as -13°C (8°F). The gradual warming trend leading up to July showcases a transition from the chilly winter months, peaking in the summer, and hints at cooler temperatures returning in August and September. With enjoyable warmth and ample sunshine, July is undoubtedly a highlight of the Southampton calendar, perfect for beach outings and community events.
In July, Southampton experiences a notable increase in precipitation, with a total of 105 mm (4.1 in) of rain spread over 11 days. This relatively moderate amount is part of a trend observed in the warmer months, as precipitation levels rise after the drier spring months. June's rainfall was notably lower at 72 mm (2.8 in), indicating a shift to more humid conditions as summer progresses. While July’s rainfall is substantial, it still falls slightly behind the wetter months of October and April, underscoring July as a transitional period characterized by warmth and occasional summer storms. As the season moves toward August, with an expected 100 mm (3.9 in) of precipitation, it suggests that the area's wet weather patterns are likely to continue, fostering a lush, thriving landscape.
In July, Southampton experiences a noticeable shift in humidity, dropping to 62%. This marks the lowest point of the year, following a gradual decrease from the higher levels seen in the first half of the year, where humidity reached 84% in January. The trend indicates a transition from the dampness of winter and early spring to the more comfortable and drier summer months. While humidity begins to creep back up in August to 65%, July stands out as a breath of fresh air, offering a respite from the mugginess typically associated with coastal climates. This comfortable humidity can enhance outdoor activities, making it an ideal time for residents and visitors to enjoy the warm summer days in Southampton.
In July, Southampton experiences a peak UV Index of 10, categorizing exposure as very high. This level of UV radiation means that the potential for skin damage is significant, with a burn time of only 15 minutes. Notably, July continues the trend established in June, where the UV Index also reached its highest, emphasizing the need for sun protection during these summer months. As we transition from the earlier months, where UV levels gradually increased—from a moderate exposure category in January to very high levels by mid-summer—it's crucial to stay vigilant against sun exposure. As we move towards August, the UV Index will slightly dip to 9, but the risk remains elevated throughout the summer. To stay informed about the UV conditions in Southampton, visit Southampton UV Index.
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In July, Southampton basks in a splendid 349 hours of sunshine, marking the pinnacle of the year’s radiant glow. This month captures the essence of summer, following a steady increase in daylight hours from 153 in January to 321 in June. As the warmth peaks in July, the sunlit days create a vibrant atmosphere, perfect for outdoor activities and seaside escapades. Following this sun-soaked zenith, the hours gradually taper off into August with 327 hours, signaling a gentle transition towards autumn, yet still inviting ample opportunities to soak up the last of summer’s warmth. This trend of increased sunlight not only elevates spirits but also reflects the delight of long summer days enjoyed in the charming coastal town.
In July, Southampton experiences a 45% chance of sunny weather, marking it as one of the more promising months for sunlight. This likelihood is consistent with the trend seen in the preceding months, where the chances of sunshine hover primarily in the low to mid-40% range. Interestingly, June just slightly trails July at 41%, while March shines as a standout with a 59% chance of sun. As the summer progresses, the potential for sunny days begins to dip in August to 34%, suggesting that July is a sweet spot for those seeking bright skies. Overall, while July doesn't guarantee endless sunshine, it offers a reasonable opportunity for enjoying pleasant, sun-filled days amid a generally fluctuating climate.
In July, Southampton basks in approximately 14 hours of daylight, marking a peak in the summer season. This month follows a gradual increase in daylight hours from 9 hours in January to a high of 15 hours in June, showcasing the transition from winter's short days to the long, sunlit days of summer. After July, daylight begins to wane, diminishing to 13 hours in August and continuing a downward trend into the fall months. This rhythm of daylight not only influences the natural beauty of the area but also sets the stage for a vibrant outdoor lifestyle, as residents and visitors alike savor the extended hours of sunshine.
In July, Southampton experiences its calmest winds of the year, with an average speed of only 4.6 m/s (10 mph). This tranquil breeze is a noticeable shift from the stronger gusts of earlier months, particularly from January to June, where winds consistently hovered above 5.2 m/s (12 mph). Interestingly, the wind speeds in July are mirrored in August, suggesting that the summer months bring a breath of serenity to the region. As the year progresses, winds begin to regain their strength come September, returning to more robust averages of 5.8 m/s (13 mph). This summer lull provides a perfect backdrop for outdoor activities, inviting residents and visitors alike to bask in the gentle winds of the season.
The weather in Southampton changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July'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.
July and January exhibit stark contrasts in weather patterns. July boasts warmer temperatures, with an average of 23°C (73°F) and highs reaching up to 29°C (84°F), accompanied by a relatively moderate humidity of 62%. In contrast, January is characterized by chilling temperatures, averaging just 2°C (36°F), with lows plummeting to -13°C (8°F) and highs barely reaching 13°C (55°F). While July experiences more precipitation—105 mm (4.1 in) over 11 days—January sees slightly less at 90 mm (3.5 in) across 9 days, but the humidity is notably higher at 84%. For more detailed information on January weather, you can visit Southampton weather in January.
When comparing the weather in July and February, the differences are striking. July boasts milder temperatures, with averages around 23°C (73°F) and highs reaching up to 29°C (84°F), alongside relatively moderate humidity levels of 62%. In contrast, February experiences much colder temperatures, with an average of just 2°C (37°F) and lows that can plunge to -13°C (10°F). Notably, February also sees higher humidity at 82% and slightly more precipitation, with 127 mm (5.0 in) over 12 days, compared to July's 105 mm (4.1 in) over 11 days. For more details on February's climate, you can check this link: Southampton weather in February.
When comparing the weather in July and March, the contrast is striking. July experiences much milder temperatures, with averages around 23°C (73°F) and maximums peaking at 29°C (84°F), whereas March is significantly colder, with daytime highs only reaching up to 15°C (59°F) and averages at a mere 4°C (39°F). While July sees more moderate humidity levels at 62%, March has a higher humidity of 81%, contributing to a chillier feel despite similar precipitation levels—105 mm (4.1 in) in July and 112 mm (4.4 in) in March, with both months featuring around 10 to 11 days of rain. For a detailed look at March's weather, you can visit Southampton weather in March.
In comparing the weather of July and April, it's evident that July is significantly warmer, with average temperatures around 23°C (73°F) compared to April's average of only 8°C (47°F). While July experiences relatively lower humidity at 62%, April has a higher humidity level of 78%, which can feel quite damp despite the cooler temperatures. Interestingly, April sees a bit more precipitation, totaling 139 mm (5.5 in) over 12 days, while July has 105 mm (4.1 in) of rain over 11 days. For more detailed insights into April weather patterns, you can check out Southampton weather in April.
In comparing the weather between May and July, it’s clear that July is significantly warmer, with average temperatures reaching 23°C (73°F) compared to May's cooler average of 13°C (55°F). July also boasts higher maximum temperatures, peaking at 29°C (84°F), while May tops out at 21°C (70°F). However, May experiences slightly more precipitation, with 130 mm (5.1 in) over 13 days, whereas July sees 105 mm (4.1 in) across 11 days. Humidity levels are also higher in May, at 69%, compared to July’s 62%. For more details on the weather patterns, check out Southampton weather in May.
July tends to be warmer and wetter compared to June. In July, temperatures range from a minimum of 16°C (62°F) to a maximum of 29°C (84°F), with an average temperature of 23°C (73°F). In contrast, June sees cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 25°C (77°F), averaging 18°C (65°F). Additionally, July experiences more rainfall, totaling 105 mm (4.1 in) over 11 days, while June has only 72 mm (2.8 in) of precipitation across 8 days. Interestingly, although July is warmer, it has a slightly lower humidity level at 62% compared to June’s 69%. For more details on June weather, visit Southampton weather in June.
In comparing the weather of July and August, both months showcase mild summer temperatures with July having a slight edge in terms of maximum warmth, peaking at 29°C (84°F) compared to August's 28°C (83°F). July's average temperature remains the same as August’s at 23°C (73°F), while August experiences a slightly higher minimum temperature of 17°C (63°F) against July’s 16°C (62°F). Rainfall is relatively consistent, with July recording 105 mm (4.1 in) across 11 days and August seeing 100 mm (3.9 in) over 10 days. Interestingly, humidity also makes a notable shift, increasing from 62% in July to 65% in August. For a closer look at the weather specifics, you can check out Southampton weather in August.
In July, the weather tends to be warmer with an average temperature of 23°C (73°F) and peaks reaching up to 29°C (84°F). The month also sees higher precipitation levels, totaling 105 mm (4.1 inches) over about 11 days, accompanied by a humidity level of 62%. In contrast, September experiences milder temperatures, with an average of 20°C (69°F) and maximums of 27°C (81°F). Although precipitation is slightly lower at 97 mm (3.8 inches) and occurring across 10 days, the humidity rises to 68%. For a deeper look into September's weather patterns, you can explore Southampton weather in September.
In July, the weather is warm with average temperatures ranging from 16°C (62°F) to a maximum of 29°C (84°F). However, it also experiences moderate rainfall, totaling 105 mm (4.1 in) over approximately 11 days, along with a humidity level of 62%. In contrast, October brings cooler temperatures, with a minimum of 6°C (42°F) and an average of 16°C (62°F), peaking at 25°C (77°F). This month sees increased precipitation, reaching 159 mm (6.2 in) over about 13 days, and higher humidity at 74%. For a more detailed look at October weather specifics, visit Southampton weather in October.
July and November present stark contrasts in weather patterns. In July, temperatures range from a pleasant 16°C (62°F) at night to a warm average of 23°C (73°F) and highs reaching up to 29°C (84°F), accompanied by moderate humidity at 62%. However, the month sees a fair amount of rainfall, totaling 105 mm (4.1 in) over about 11 days.
In contrast, November experiences significantly cooler conditions, with temperatures dipping to a low of -5°C (24°F) and averaging just 10°C (50°F), peaking at a mild 19°C (67°F). Although it has slightly higher precipitation at 111 mm (4.4 in) over 10 days, the humidity rises to 82%, contributing to a much chillier atmosphere. For more insights on November weather, check out Southampton weather in November.
When comparing the weather in July and December, the differences are stark. July sees much warmer temperatures, with a minimum of 16°C (62°F) and an average of 23°C (73°F), reaching up to a maximum of 29°C (84°F). In contrast, December experiences much colder weather, with temperatures plummeting to a minimum of -9°C (16°F) and averaging just 5°C (42°F), peaking at 16°C (61°F). Additionally, December has higher precipitation at 152 mm (6.0 in), although it shares the same number of rainy days as July, which has 105 mm (4.1 in) of precipitation. Humidity levels also rise in December to 80%, compared to 62% in July. For more detailed information, you can check Southampton weather in December.
In July, Southampton experiences its warmest temperatures of the year, with the mercury often reaching up to 29°C (84°F). This makes it a prime month for outdoor activities and enjoying the beautiful scenery of the area. However, July differs from other months with its moderate humidity of 62% and higher average precipitation, resulting in around 11 days of rain. While the warmth invites beachgoers, the occasional rain showers remind us of the region's maritime climate. For a more comprehensive view of what to expect throughout the year, check out Southampton Climate.