Last updated: February 24, 2025
In September, Wailua, United States, experiences a warm tropical climate with average temperatures hovering around 25°C (78°F). Daily highs reach a pleasant 28°C (83°F), while nighttime lows settle comfortably at 23°C (73°F). Rainfall is a notable feature of the month, with precipitation totaling 65 mm (2.5 in) spread across 21 days, contributing to an humidity level of 82%. This blend of warmth and moisture creates a lush environment, making September a unique time to experience Wailua's natural beauty.
In September, Wailua, United States, showcases its late summer warmth, with temperatures reflecting a slight increase as the month progresses. The minimum temperature settles at a comfortable 23°C (73°F), while the average hovers around 25°C (78°F), making it ideal for outdoor activities and beach outings. Highs reach up to 28°C (83°F), keeping the atmosphere inviting and vibrant. This trend of warm temperatures, escalating from the milder beginnings of the year, highlights September as a delightful transition month before the cooler fall arrives, allowing residents and visitors alike to enjoy the tail end of summer's embrace.
In September, Wailua experiences a moderate shift in precipitation patterns, receiving 65 mm (2.5 in) of rain over approximately 21 days. This amount indicates a slight decrease compared to the heavier rainfall of previous months, particularly March's peak of 156 mm (6.1 in). As summer transitions into fall, the weather becomes more stable, allowing for a balanced blend of sunny days intertwined with refreshing showers. This month often sets the stage for the upcoming wetter months, as we see a gradual increase in rainfall towards October, hinting at the impending seasonal changes that define Wailua's unique climate.
In Wailua, the month of September experiences a notable humidity level of 82%, maintaining the trend established in the preceding summer months. Throughout the year, humidity fluctuations are minimal, peaking at 83% in both July and August. The gradual rise from 78% in January to a summer high reflects a consistent increase as temperatures warm. Following September, humidity begins to taper off, hinting at a transition into the cooler months. This dance of humidity, relatively stable yet perceptibly fluctuating, characterizes the lush, tropical climate that Wailua is known for, ensuring residents and visitors alike remain enveloped in the region's signature moisture.
As September rolls into Wailua, residents and visitors alike should brace for an extreme UV Index of 12, indicating a high risk of harm from unprotected sun exposure with a burn time of just 10 minutes. This month maintains the elevated levels seen throughout the summer, as June, July, and August also recorded a peak UV Index of 13. As we transition into fall, it's essential to be vigilant, especially as the UV Index softens slightly in October to 10, signaling the start of a gradual decline. Staying informed about these trends is crucial for sun safety; for more insights, visit the Wailua UV Index.
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As September rolls into Wailua, the sun continues to shine generously, gifting residents and visitors with 315 hours of sunlight. This radiant month follows a lively summer, where July reached its peak with 349 hours, showcasing the area's vibrant outdoor lifestyle. September, while slightly lower than August's 337 hours, remains a delightful month of warmth and light, marked by the gradual transition into autumn. The trend of decreasing daylight as the year progresses becomes more pronounced, yet September stands as a testament to the lingering summer spirit, inviting all to bask in its golden glow before the shorter days of fall set in.
In Wailua, September brings a 54% chance of sunny weather, melding the vitality of summer's end with the subtle onset of autumn. This month follows a trending pattern where sunshine prevalence generally peaks in the late summer, highlighted by August's robust 61%. While it sits slightly above the April and March averages, September's forecast signals a gradual transition in conditions, reminiscent of the 52% chances found in the earlier months of the year. Overall, as days shorten and temperatures cool, Wailua still holds onto a significant chance for sun, setting the stage for delightful outdoor activities amidst the fading summer warmth.
As summer transitions into fall, September in Wailua offers a delightful 12 hours of daylight, matching the length seen in both March and April. This month reflects the peak of daylight hours experienced during the summer, which reaches a high of 13 hours in May, June, and July. Following September, daylight begins its gradual decline, signaling the onset of shorter days in October and November. The smooth cadence of daylight durations throughout the year showcases the rhythmic balance of Wailua's tropical climate, inviting residents and visitors alike to bask in the warmth of abundant sunlight before the days grow shorter.
In September, Wailua experiences a gentle breeze with an average wind speed of 5.5 m/s (12 mph), mirroring the conditions of both January and October. This month marks a transition in the seasonal wind patterns; while the summer months of July and August see a slight uptick with winds reaching up to 6.0 m/s (14 mph), September returns to a steadier rhythm. Overall, the wind speeds remain relatively stable from spring through early fall, typically hovering between 4.6 m/s to 6.1 m/s, before dipping in November when they drop to 3.9 m/s (9 mph). As autumn approaches, Wailua welcomes these moderate winds, providing a refreshing contrast to the warmer months, while setting the stage for the brisker breezes of winter.
The weather in Wailua 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 Wailua and find detailed weather information for every month.
September and January exhibit notable differences in weather patterns. In September, temperatures are warmer, with a minimum of 23°C (73°F) and a maximum of 28°C (83°F), leading to a higher average of 25°C (78°F). The month is also marked by increased humidity at 82% and greater precipitation, with 65 mm (2.5 in) spread over 21 days. Conversely, January experiences cooler temperatures, with a minimum of 19°C (67°F) and a maximum of 25°C (78°F), resulting in a lower average of 22°C (73°F). Rainfall is slightly less in January, totaling 60 mm (2.3 in) over just 11 days, and the humidity is relatively lower at 78%. For more detailed information, check out Wailua weather in January.
September typically enjoys warmer temperatures, with daily averages around 25°C (78°F) and maximums reaching up to 28°C (83°F). In contrast, February sees slightly cooler temperatures, averaging 22°C (71°F) and peaking at 26°C (78°F). The humidity remains relatively high in both months, with September at 82% and February at 79%. Precipitation is more frequent in February, with 94 mm (3.7 in) spread over 17 days, compared to September's 65 mm (2.5 in) over 21 days. For more detailed information about February weather, you can visit Wailua weather in February.
In September, the weather is generally warmer with average temperatures ranging from a minimum of 23°C (73°F) to a maximum of 28°C (83°F), accompanied by relatively high humidity at 82%. The month sees moderate rainfall, totaling 65 mm (2.5 inches) across 21 days. In contrast, March experiences slightly cooler average temperatures, with a range from 18°C (65°F) to a maximum of 25°C (78°F). However, it is notably wetter, with precipitation reaching 156 mm (6.1 inches) over the same number of days, and a humidity level of 78%. For more details, check out Wailua weather in March.
In comparing the weather between September and April, September tends to be slightly warmer, with average temperatures reaching 25°C (78°F) compared to April's average of 23°C (73°F). The maximum temperature in September is also higher at 28°C (83°F), while April peaks at 26°C (78°F). Although both months experience significant rainfall, September sees about 65 mm (2.5 in) over 21 days, while April has a bit more precipitation at 80 mm (3.2 in) over 20 days. Humidity levels remain fairly consistent, with September at 82% and April slightly lower at 81%. For a detailed look at what to expect in April, you can visit Wailua weather in April.
Comparing the weather conditions in September and May reveals some interesting similarities and slight variations. In September, the average temperature is slightly higher, with a minimum of 23°C (73°F) and a maximum of 28°C (83°F), while May experiences a cooler average of 23°C (74°F), with a minimum of 19°C (67°F) and a maximum of 27°C (81°F). Both months showcase similar precipitation levels, approximately 65 mm (2.5 in), spread over 21 days, indicating a wet environment. Humidity remains constant at 82% for both months, creating a consistently tropical atmosphere. You can learn more about the climate during this time by visiting Wailua weather in May.
When comparing the weather in September to that of June, we find several notable differences. September typically showcases slightly warmer temperatures, with a minimum of 23°C (73°F) and a maximum of 28°C (83°F), while June's temperatures range from a minimum of 21°C (71°F) to a maximum of 27°C (81°F). Although September experiences less rainfall with 65 mm (2.5 in) across 21 days, it's worth noting that June has a higher precipitation level of 92 mm (3.6 in) over 20 days. Both months maintain a consistent humidity level of 82%, contributing to the tropical feel of the region. For more detailed information about June weather, you can visit Wailua weather in June.
In comparing the weather of September and July, we find that both months experience similar temperature ranges, with minimums around 22-23°C (73°F) and maximums peaking at 28°C (82-83°F). However, September tends to be slightly drier, receiving 65 mm (2.5 in) of precipitation compared to July's 80 mm (3.2 in). Additionally, fewer days of rain in September (21 days) versus July (26 days) result in a marginally better overall weather experience. Humidity levels are comparable, with September at 82% and July at 83%. For more details on July weather, you can visit Wailua weather in July.
When comparing the weather in September to August, we see some similarities but also notable differences. Both months feature a similar temperature range, with minimum temperatures around 22-23°C (73°F), average temperatures of 25°C (78°F), and maximum temperatures peaking at 28°C (83°F). However, September experiences slightly less precipitation, with 65 mm (2.5 in) over 21 days, compared to August's 80 mm (3.2 in) over 23 days. Additionally, while humidity levels remain comparable at 82% in September and 83% in August, the latter month tends to be a bit wetter. For a closer look at August weather specifics, check out Wailua weather in August.
In comparing the weather between September and October, we see that the temperatures remain quite similar, with September featuring a minimum of 23°C (73°F) and October slightly lower at 22°C (71°F). Both months have an average temperature of 25°C (77°F) and a maximum of 28°C (82-83°F), indicating a consistent warmth throughout this transition period. However, October experiences slightly increased precipitation, totaling 95 mm (3.7 in) over 22 days, compared to September’s 65 mm (2.5 in) over 21 days. Notably, humidity remains comparable, with September at 82% and October slightly lower at 81%. For more detailed information, check out Wailua weather in October.
In September, the weather tends to be slightly warmer with average temperatures reaching around 25°C (78°F) and a maximum of 28°C (83°F). The month experiences a fair amount of rainfall, totaling 65 mm (2.5 in) over 21 days, paired with high humidity at 82%. In contrast, November brings slightly cooler temperatures, with an average of 24°C (76°F) and a maximum of 27°C (81°F). Rainfall increases to 76 mm (3.0 in), still spread over 21 days, while humidity remains relatively stable at 80%. For more detailed information, you can check Wailua weather in November.
In September, the weather is typically warm with an average temperature of 25°C (78°F) and a maximum of 28°C (83°F), making it feel quite comfortable. However, it experiences significant rainfall, with 65 mm (2.5 in) of precipitation spread over 21 days, resulting in a high humidity level of 82%. In contrast, December brings slightly cooler temperatures, with an average of 23°C (74°F) and a maximum of 26°C (79°F), but it sees increased precipitation, totaling 127 mm (5.0 in) over the same number of days. Despite the drop in temperature, December's humidity remains relatively moderate at 79%. For more detailed information, you can visit Wailua weather in December.
As September arrives in Wailua, the weather shifts to create a tropical embrace characterized by higher humidity and frequent rain showers. With average temperatures hovering around a comfortable 25°C (78°F), locals and visitors alike can enjoy the warm, inviting climate, though they should be prepared for a higher likelihood of wet days—with precipitation occurring on nearly three-quarters of the month. This month sets itself apart from the drier summer months, making it a unique time to experience Wailua’s lush landscapes. For a deeper dive into the climate dynamics of this beautiful region, explore Wailua Climate.