Last updated: February 24, 2025
In July, Port Jefferson experiences warm and humid conditions, with maximum temperatures reaching 33°C (91°F) and an average of 24°C (76°F), making it an ideal time for outdoor activities. The month sees a minimum temperature of 16°C (60°F), offering somewhat cooler nights. However, residents and visitors should be prepared for rainfall, as precipitation totals 131 mm (5.2 in) spread across about 12 wet days. With an average humidity level of 62%, July in Port Jefferson presents a quintessential summer climate, characterized by a blend of heat and occasional showers, perfect for enjoying the charming coastal surroundings.
July in Port Jefferson beckons with warmth, as the temperatures rise to create a vibrant summer atmosphere. With a minimum of 16°C (60°F), the month starts off comfortably warm, while the average temperature hovers around a pleasant 24°C (76°F). By midday, the heat can peak at a sizzling 33°C (91°F), making it the hottest month of the year. This significant leap from the cooler months of spring showcases a clear trend toward increasing temperatures. The warm July days invite residents and visitors alike to enjoy outdoor activities, further enhanced by the delightful coastal breezes that often accompany the summer sun. Overall, July stands as a testament to the joys of summer in Port Jefferson, offering a perfect canvas for seaside adventures and sun-soaked relaxation.
In July, Port Jefferson experiences a notable uptick in precipitation, with an average of 131 mm (5.2 in), making it one of the wetter months of the year. Rainfall occurs on approximately 12 days, maintaining a consistent pattern seen throughout the summer. This increase from June's 87 mm underscores July's role in the region's climatic rhythm, as it balances warmth with regular showers. Following the trend from previous months, July's precipitation levels align closely with those of April and October, which also see significant rainfall, suggesting a seasonal pattern that primes the landscape for lush summer growth while also nurturing the lush vitality of the region.
In July, Port Jefferson experiences a noticeable drop in humidity, averaging 62%, a stark contrast to the higher levels seen in the winter months. This significant decrease marks the lowest humidity level of the year, reflecting the summer's drier conditions. Following July, humidity begins to rise slightly again in August at 65%, hinting at the shift towards the more humid late summer and early fall months. Overall, the seasonal trend highlights a gradual decline in humidity from the peak winter values of 84% in January to the delightful summer respite in July, making it a perfect time to enjoy outdoor activities in the relatively comfortable air of Port Jefferson.
In July, Port Jefferson experiences a UV Index of 9, placing it firmly in the very high exposure category, with a burn time of just 15 minutes. This trend of elevated UV levels continues from June, where the UV Index also peaked at 10 and highlights the ongoing need for sun protection during the summer months. Comparatively, while the UV Index does dip a bit in August, it remains constant at 9. It's clear that as we journey through the warmer months, vigilance against UV radiation becomes increasingly crucial. For detailed insights into the month-by-month UV trends, be sure to check out Port Jefferson UV Index.
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In July, Port Jefferson basks in the highest number of sunshine hours for the year, amassing an impressive 343 hours. This sun-drenched month serves as the pinnacle of summer, following a steady rise from the 154 hours of January, gradually building through spring's awakening. As temperatures climb, the daylight hours peak in July, providing vibrant days that gradually taper off into August with 323 hours. Interestingly, this trend reflects the overall seasonal rhythm, where each month leads into the next with increasing sunlight, only to see a gentle decline as autumn approaches. The contrast between winter's pale rays and July’s abundant sunlight exemplifies the region's transformative seasonal landscape, making it a true highlight of the year.
In Port Jefferson, July experiences a 41% chance of sunny weather, reflecting a notable trend of fluctuating sun exposure throughout the year. While this midsummer month does not boast the highest probability of sunshine—compared to January’s impressive 52%—it's a time when residents and visitors alike look forward to warmer, brighter days. Interestingly, July shares its sunny likelihood with neighboring months such as June and October, both hovering around the same percentage. This pattern underscores a transition as the summer progresses, often leading to more overcast days in August and a slight rebound in sun chance as fall approaches. With July's weather overall being a delightful mix of sun and clouds, it remains a preferred time for outdoor activities along the charming shores of Port Jefferson.
In July, daylight in Port Jefferson offers approximately 14 hours of sunshine, marking a slight dip from the peak of 15 hours experienced in June. This month stands out as part of a vibrant trend during the summer season, where longer days foster outdoor activities and community engagement. Following July, daylight begins to gently wane, transitioning into August with 13 hours of light, illustrating the gradual shift towards shorter days as autumn approaches. This rhythmic cycle of daylight not only defines seasonal activities but also creates a captivating narrative of nature's ebb and flow throughout the year.
In July, Port Jefferson enjoys the gentle caress of the winds, with an average speed of 3.4 m/s (8 mph), marking the lowest for the year. This serene condition is a summer hallmark, as wind speeds gradually decline from their winter peaks. Following a steady decrease from January's brisk 5.0 m/s (11 mph), the summer months show a consistent softness, with both July and August holding steady at the same leisurely pace. As autumn approaches, wind speeds begin to rise again, hinting at the seasonal shifts ahead. This trend highlights July's calm atmosphere, making it an ideal time for beach goers and outdoor enthusiasts to bask in the summer sun without the distraction of blustery winds.
The weather in Port Jefferson 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 Port Jefferson and find detailed weather information for every month.
In comparing the weather between July and January, it's clear that these months present stark contrasts. July boasts a much warmer climate with minimum temperatures around 16°C (60°F) and maximums peaking at 33°C (91°F), averaging 24°C (76°F). Despite the warmth, July also sees a fair amount of rain, accumulating 131 mm (5.2 in) over approximately 12 days, with humidity levels at 62%. In contrast, January experiences frigid temperatures, where the thermometer can plunge to a minimum of -15°C (6°F) and only reach a maximum of 15°C (60°F), averaging just 2°C (35°F). Snow and frost are common during this month, with precipitation totaling 80 mm (3.1 in) over about 8 days, along with higher humidity at 84%. For a closer look at January weather specifics in Port Jefferson, you can visit Port Jefferson weather in January.
When comparing the weather in July and February, the stark differences are immediately evident. July experiences warm temperatures, with a minimum of 16°C (60°F) and an average of 24°C (76°F), peaking at a maximum of 33°C (91°F). This month also sees a moderate level of precipitation, totaling 131 mm (5.2 in) over approximately 12 days, accompanied by a humidity level of 62%. In contrast, February presents a much colder climate, with minimum temperatures dropping to -15°C (6°F) and an average of only 2°C (36°F), reaching a maximum of 15°C (58°F). Despite slightly less precipitation at 112 mm (4.4 in) over the same number of days, February has a higher humidity level of 82%, adding to the chill. For more detailed insights, you can check Port Jefferson weather in February.
In comparing the weather between March and July, the differences are striking. July brings much warmer temperatures, with a minimum of 16°C (60°F) and a maximum of 33°C (91°F), creating an average temperature of 24°C (76°F). In contrast, March is much colder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 19°C (67°F), averaging only 4°C (40°F). July also experiences higher humidity at 62%, compared to March's 81%, indicating a more comfortable atmosphere during the summer month despite the precipitation level being similar, with July receiving 131 mm (5.2 in) over 12 days and March receiving 104 mm (4.1 in) over 10 days. For more detailed insights on March's weather, you can check Port Jefferson weather in March.
Comparing the weather in July and April reveals a stark contrast in temperatures and humidity levels. In July, the average temperature is a comfortable 24°C (76°F), peaking at a warm 33°C (91°F), while in April, temperatures are much cooler, averaging only 9°C (49°F) with a maximum of 22°C (71°F). Both months experience similar levels of precipitation, with 131 mm falling over 12 days, but July features lower humidity at 62% compared to April's higher 78%. For more detailed information, you can view Port Jefferson weather in April.
In comparing the weather of July to that of May, we see a distinct contrast in temperatures and conditions. July boasts a warmer climate with minimum temperatures around 16°C (60°F) and average highs of 33°C (91°F), while May's temperatures range from a chilly 3°C (37°F) to a pleasant maximum of 26°C (79°F). Precipitation levels in July are slightly higher at 131 mm (5.2 in), occurring over 12 days, compared to May’s 119 mm (4.7 in) over 13 days. Additionally, humidity in July averages 62%, slightly lower than May's 69%, suggesting that while July is warmer, May provides a cooler and relatively moist atmosphere. For more detailed information about May weather, you can visit Port Jefferson weather in May.
In comparison to June, July experiences warmer temperatures, with an average of 24°C (76°F) compared to June's 20°C (68°F). The maximum temperature in July can reach up to 33°C (91°F), while June sees a peak of 29°C (85°F). July also tends to be more humid, with a humidity level of 62%, compared to June’s 69%. Precipitation is higher in July, totaling 131 mm (5.2 inches) over 12 days, compared to June’s 87 mm (3.4 inches) over 9 days. For those interested in a detailed overview of June weather patterns, you can check out Port Jefferson weather in June.
In comparison to July, August weather features a similar temperature range, with minimums around 16°C (61°F), averages of 24°C (75°F), and maximums slightly lower at 31°C (88°F). Precipitation decreases in August to 103 mm (4.0 in), occurring over 11 days, while July recorded 131 mm (5.2 in) over 12 days. Moreover, humidity increases slightly in August to 65%, compared to 62% in July. For a more detailed look at August conditions, you can visit Port Jefferson weather in August.
In July, the weather is generally warmer and more humid, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F), accompanied by an average temperature of 24°C (76°F). The month sees considerable rainfall, with 131 mm (5.2 in) of precipitation over about 12 days. In contrast, September features a cooler climate, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 30°C (87°F), and an average of 21°C (70°F). Precipitation decreases to 94 mm (3.7 in) over approximately 10 days, while humidity rises slightly to 68%. For more detailed weather information, you can visit Port Jefferson weather in September.
In July, the weather is typically warm, with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F). The month sees considerable rainfall, with a total precipitation of 131 mm (5.2 in) over 12 days and humidity levels at 62%. In contrast, October brings cooler conditions, featuring an average temperature of 16°C (61°F) that swings between 5°C (41°F) and 29°C (84°F). Despite being cooler, October experiences slightly higher precipitation at 143 mm (5.6 in) over the same number of rainy days, along with increased humidity at 74%. For more details on October weather specifics, you can visit Port Jefferson weather in October.
In July, the weather is significantly warmer with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F), averaging around 24°C (76°F). This month experiences a fair amount of precipitation, totaling 131 mm (5.2 in) over approximately 12 days, coupled with a humidity level of 62%. In contrast, November brings a much cooler climate, characterized by temperatures ranging from -6°C (21°F) to a maximum of 21°C (70°F), with an average of 9°C (49°F). Precipitation in November is somewhat lower at 103 mm (4.0 in) over 9 days, yet the humidity increases to 82%. For more specific details on November weather, you can check out Port Jefferson weather in November.
In July, the weather is warm and humid, with average temperatures ranging from a comfortable 16°C (60°F) at night to a hot 33°C (91°F) during the day, accompanied by significant rainfall of 131 mm (5.2 in) over 12 days. In contrast, December brings a much colder climate, where temperatures can plummet to as low as -10°C (15°F) at their minimum, with an average of only 5°C (40°F) and daytime highs reaching up to 17°C (62°F). Although December sees a slightly higher precipitation level of 140 mm (5.5 in) across 11 days, the humidity is noticeably higher at 80%, creating a chillier and damp environment. For more specific details, check Port Jefferson weather in December.
July in Port Jefferson stands out as a vibrant month, characterized by warmer temperatures and a noticeable increase in humidity compared to other times of the year. With maximum highs reaching 33°C (91°F) and average temperatures around a comfortable 24°C (76°F), the warmth invites outdoor activities and beach days. However, this month also sees its share of precipitation, with over 131 mm spread across about half of the days, adding a refreshing contrast to the summer heat. As you plan your July outings, keep in mind that while the sun shines brightly, occasional rain can offer a breather from the warmth. For more detailed insights on the climate, visit Port Jefferson Climate.