Last updated: February 24, 2025
September in East Honolulu offers a delightful tropical climate, marked by an average temperature of 26°C (79°F), with maximums reaching 28°C (83°F) and cool evenings settling around 23°C (75°F). This month sees moderate humidity levels at 82%, enhancing the warm, inviting atmosphere. Although the region experiences some rain, with a total of 19 mm (0.7 in) over 4 days, the generally pleasant weather makes it an ideal time for outdoor activities and exploration. Visitors and residents alike can enjoy a vibrant blend of sunshine and brief showers, embodying the essence of Hawaiian paradise.
In East Honolulu, September ushers in a warm and inviting atmosphere, reflecting the late summer vibe with minimum temperatures around 23°C (75°F) and average highs reaching up to 28°C (83°F). As the month progresses, the overall temperatures remain stable, mirroring the warmth seen in August, and hinting at a trend of consistently pleasant weather that characterizes this vibrant locale. With averages of 26°C (79°F), September offers a perfect blend of warmth without the intensity of peak summer, making it an ideal time for outdoor activities and beach outings. Enthusiasts of sunny weather will appreciate the slight dip from summer's peak yet still revel in the balmy tropical ambiance that sets the stage for memorable moments in paradise.
In East Honolulu, September marks a subtle increase in precipitation, with an average of 19 mm (0.7 in) falling over four days. This month sees a slight uptick from the drier summer months of July and August, which recorded only 13 mm (0.5 in) and 15 mm (0.6 in) respectively. As the region transitions into the fall, September acts as a gentle reminder of the wetter times ahead, with precipitation levels beginning to climb toward October's expected 45 mm (1.8 in). Overall, this trend suggests a gradual shift from the arid conditions of summer to the more humid and rainy spells typical of later months, setting the stage for the lush landscapes Hawaii is renowned for.
September in East Honolulu experiences a humid tropical climate, with an average humidity of 82%. This figure is slightly lower than the peak months of July and August, when humidity reaches 83%, showcasing a subtle but welcome dip as the summer season begins to fade. As the year progresses, it’s evident that humidity remains relatively high, fluctuating only slightly from January's 78% to November's 80%. The consistent humidity levels throughout the year, particularly in the late summer months, contribute to the region's lush vegetation and vibrant ecosystems, making September a uniquely tropical experience for residents and visitors alike.
As the summer fades into September in East Honolulu, the UV Index begins to decline slightly from its peak during the warmer months, settling at 12, which still falls within the extreme exposure category. The burn time remains a brisk 10 minutes, so sun safety is still crucial. This trend reflects a transition from the intensity of summer’s relentless rays, with July and August holding steady at a UV Index of 13. Although September offers a bit of relief compared to the height of summer, the potential for skin damage remains significant. As we move into October, the UV Index drops to 11, signaling that while the sun's intensity may wane, vigilance is still key for those enjoying the outdoors. For real-time updates and more information, visit East Honolulu UV Index.
UV Risk Categories
As September rolls in, East Honolulu basks in 319 hours of sunshine, marking a slight dip from the sun-drenched highs of summer. This month serves as a delightful transition, following July's peak of 350 hours and August's still generous 339 hours. The robust sunshine seen from May through July sets a vibrant tone for early autumn, leading into October’s mild 302 hours. Overall, the trend reveals a sun-loving locale where the summer brightness gradually gives way to the softer hues of fall, but not without leaving residents and visitors alike with a rich tapestry of golden days to enjoy.
September in East Honolulu boasts a 70% chance of sunny weather, marking it as one of the more favorable months for beachgoers and outdoor enthusiasts. As summer transitions into fall, sunshine remains plentiful, continuing the upward trend from May's 73% and August's 74%. This slight dip in sunny days from August is minimal, suggesting that September retains a rich warmth and bright skies. Following the sunny patterns established earlier in the year, September embodies a delightful balance of summer's lingering light, making it an excellent time to explore the beauty of Hawaii's shores. Overall, this month stands out as one that maintains a vibrant connection to the sun, proving to be a splendid opportunity for both relaxation and adventure.
As September unfolds in East Honolulu, the daylight duration settles at 12 hours, mirroring the month’s preceding August and transitioning smoothly into the shorter days of October. This month marks a pivotal moment in the yearly cycle as the hours of sunlight gradually begin to wane after reaching a peak in the vibrant summer months of May through July, when residents enjoyed a generous 13 hours of daylight. With each passing month from January's 10 hours to September's consistent 12 hours, a discernible rhythm emerges, showcasing Hawaii's unique tropical climate that blesses its inhabitants with abundant sunshine. As the days begin to draw in, September invites both locals and visitors to savor the lasting glow of summer while preparing for the softer light of autumn.
In September, East Honolulu witnesses a refreshing average wind speed of 7.7 m/s (17 mph), marking a slight uptick from the previous months. This trend of increasing wind speeds continues from the calmer summer, where July reached its peak at 8.7 m/s (19 mph), before gradually settling in August. As autumn approaches, September’s winds provide a delightful blend of warmth and coolness, making it an ideal time for outdoor activities. The wind speeds during this month are notably higher than the softer breezes of late spring and early summer, hinting at the dynamic shifts in weather patterns that characterize the transition into fall. Following September, wind speeds are expected to rise again in October, underscoring the region's seasonal ebb and flow.
The weather in East Honolulu changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in East Honolulu and find detailed weather information for every month.
In September, the weather is typically warmer and more humid compared to January, with average temperatures ranging from a minimum of 23°C (75°F) to a maximum of 28°C (83°F). The month sees about 19 mm (0.7 in) of precipitation over roughly 4 days and maintains a humidity level of 82%. In contrast, January experiences slightly cooler temperatures, with averages from a minimum of 20°C (69°F) to a maximum of 25°C (78°F), accompanied by a bit less precipitation at 16 mm (0.6 in) over the same number of days, and a slightly lower humidity level of 78%. For more details about January weather patterns, check out East Honolulu weather in January.
Comparing the weather in September and February reveals distinct patterns. September features warmer temperatures, with a minimum of 23°C (75°F) and an average of 26°C (79°F), while February is cooler, with a minimum of 17°C (63°F) and an average of 23°C (73°F). Additionally, September sees less precipitation, with only 19 mm (0.7 in) over 4 days, compared to February's 60 mm (2.4 in) across 9 days. Humidity levels are relatively similar, hovering around 82% in September and 79% in February, making both months feel quite tropical. For more detailed information, you can check the local conditions at East Honolulu weather in February.
In comparing the weather of September and March, September tends to be warmer with minimum temperatures averaging around 23°C (75°F) and maximums reaching up to 28°C (83°F). The humidity is relatively high at 82%, but precipitation is light, with only 19 mm (0.7 in) recorded over approximately 4 days. In contrast, March is cooler, featuring minimum temperatures of 19°C (67°F) and maximums of 25°C (77°F). It also sees more rainfall, with about 66 mm (2.6 in) spread across 9 days, and slightly lower humidity at 78%. For a detailed overview of March weather, check out this link: East Honolulu weather in March.
In comparing the weather between September and April, September typically enjoys slightly warmer temperatures, with minimums averaging 23°C (75°F) and maximums reaching up to 28°C (83°F). In contrast, April presents cooler conditions, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). While September experiences relatively low precipitation of 19 mm (0.7 in) over 4 days, April sees increased rainfall, with 30 mm (1.2 in) spread across 6 days. Both months maintain high humidity, with September at 82% and April at 81%. For a detailed look at April weather, you can visit East Honolulu weather in April.
In September, the weather is generally warmer with average temperatures ranging from 23°C (75°F) to a maximum of 28°C (83°F), while May features slightly cooler averages, hovering between 19°C (66°F) and 27°C (80°F). Both months experience humidity levels of 82% and comparable precipitation, with 19 mm (0.7 in) in September and 23 mm (0.9 in) in May, falling over four days. For more specific insights into the conditions in May, you can check East Honolulu weather in May.
In June, the weather features a slightly lower average temperature of 25°C (78°F), with minimums and maximums of 23°C (74°F) and 27°C (81°F) respectively. This month experiences a total precipitation of 27 mm (1.1 in) over three days, maintaining a humidity level of 82%. In contrast, September offers a marginally warmer average temperature of 26°C (79°F), with similar minimum and maximum temperatures of 23°C (75°F) and 28°C (83°F). Precipitation in September drops to 19 mm (0.7 in) over four days, while humidity remains constant at 82%. For more details, you can check out East Honolulu weather in June.
In comparing the weather of September and July, both months feature similar temperature ranges, with minimal differences in their minimum, average, and maximum temperatures—23°C (75°F), 26°C (79°F), and 28°C (83°F) respectively. However, September experiences slightly more precipitation, totaling 19 mm (0.7 in) over 4 days compared to July's 13 mm (0.5 in) over just 2 days. Humidity levels remain comparable, with September at 82% and July slightly higher at 83%. For more detailed insights, you can check out East Honolulu weather in July.
In comparing the weather between September and August, we see that both months feature similar average temperatures, with September slightly cooler at a minimum of 23°C (75°F) compared to August’s minimum of 24°C (76°F). While both months maintain the same average and maximum temperatures of 26°C (79°F) and 28°C (83°F) respectively, September experiences a bit more precipitation, measuring 19 mm (0.7 in) over 4 days, compared to August’s 15 mm (0.6 in) over just 2 days. Humidity levels are relatively consistent, with September at 82% and August at 83%. For more detailed insights, you can check the weather in August East Honolulu weather in August.
In comparing the weather between September and October, we can see some notable similarities and differences. Both months maintain a consistent temperature range, with minimums around 23°C (75°F), averages at 26°C (79°F), and maximums slightly fluctuating between 28°C (82°F to 83°F). However, October experiences increased precipitation, with 45 mm (1.8 in) compared to September's 19 mm (0.7 in), and more rainy days, rising from 4 in September to 7 in October. Humidity levels remain relatively stable, with September at 82% and October slightly lower at 81%. For more insights into the specifics of October weather, you can refer to East Honolulu weather in October.
In September, the weather features warmer temperatures with a minimum of 23°C (75°F) and an average of 26°C (79°F), peaking at a maximum of 28°C (83°F). The month experiences relatively low precipitation, totaling 19 mm (0.7 in) over about 4 days, with humidity levels at 82%. In contrast, November sees slightly cooler conditions, with minimum temperatures dropping to 21°C (70°F) and an average of 25°C (77°F), while maximum temperatures reach 27°C (82°F). Rainfall increases in November, averaging 25 mm (1.0 in) over approximately 6 days, and humidity remains comparable at 80%. For more detailed information, you can check East Honolulu weather in November.
In September, the weather tends to be warmer, with temperatures ranging from a minimum of 23°C (75°F) to a maximum of 28°C (83°F), and an average of 26°C (79°F). The month experiences relatively low precipitation, only 19 mm (0.7 in) over about 4 days, coupled with high humidity at 82%. In contrast, December brings slightly cooler temperatures, with a range from 20°C (68°F) to a maximum of 26°C (79°F), and an average of 24°C (75°F). However, this month sees increased rainfall, totaling 63 mm (2.5 in) across approximately 8 days, while humidity remains comfortably lower at 79%. For more detailed information on December weather patterns, check out East Honolulu weather in December.
In September, East Honolulu boasts a blend of warmth and occasional rain, marking a transition from the sultry summer months. With an average temperature hovering around a comfortable 26°C, this month often feels more temperate compared to the peak heat of July and August. While rainfall is minimal, averaging only 19 mm over a few days, the high humidity at 82% may make the air feel a bit heavier. This distinct climate allows visitors to enjoy the lush beauty of the island while still engaging in outdoor activities. For a deeper understanding of the seasonal variations and what to expect throughout the year, explore the full details at East Honolulu Climate.