Last updated: February 24, 2025
In October, Hilo experiences a delightful tropical climate, characterized by average temperatures around 24°C (75°F). Daytime highs can reach up to 28°C (82°F), while nights remain comfortably warm at a minimum of 20°C (69°F). The month is also marked by significant rainfall, accumulating to 189 mm (7.4 in) over 23 days, resulting in a lush landscape and vibrant ecosystems. With humidity levels hovering around 83%, visitors can expect a moist atmosphere that enhances the tropical experience, making Hilo a unique destination to explore during this time.
In October, Hilo experiences a delightful transition in temperatures, characterized by a minimum of 20°C (69°F) and a pleasant average of 24°C (75°F). As the month progresses, the city enjoys a maximum temperature reaching 28°C (82°F), mirroring the warmth seen in the preceding months. This trend of mild evenings and warm days offers an inviting atmosphere for outdoor exploration. Remarkably, October remains consistent with the warmer end of Hilo's yearly spectrum, making it a prime time for visitors to appreciate the area's lush landscapes under ideal weather conditions. With temperatures gradually cooling as the year advances, October provides a perfect balance of warmth while hinting at the approaching changes of November.
In Hilo, October marks a significant moment in the precipitation cycle, with 189 mm (7.4 in) of rainfall spread over 23 days. This month subtly bridges the gap between the intense wetness of the earlier months and the tapering rains of late fall. Notably, October sees a slight decrease in precipitation compared to the preceding months, with September recording just 108 mm (4.3 in) in 24 days. The trend reveals that while October maintains a higher average than the drier summer months, it lays the groundwork for November's return to heavier rains, which often averages 153 mm (6.0 in). As residents revel in the lush greenery brought on by October’s showers, it's evident that Hilo's unique climate offers a rich tapestry of precipitation patterns throughout the year.
In Hilo, the humidity tends to be notably high throughout the year, with October experiencing an average of 83%. This level is consistent with the previous months, particularly September and November, which both share the same humidity percentage. Analyzing the data reveals a gradual increase from the beginning of the year, with a slight dip in March (77%) before steadily climbing to a peak of 84% in August. Overall, October's humidity reflects Hilo's tropical climate, maintaining the pattern of warm, moist air that defines this beautiful coastal city.
In Hilo, the UV Index remains consistently high throughout the year, with October showcasing a UV Index of 12, placing it firmly in the extreme exposure category. This means that residents and visitors alike should be cautious, as the recommended burn time is only 10 minutes. The trend reveals that from January to July, the UV Index climbs steadily, peaking at 14 in both July and August, before slightly dipping in September and October. Even as the days grow shorter and cooler, it’s crucial to remain vigilant about sun protection during this month, as the rays can still pose significant risks. For more detailed information about Hilo's UV levels, check out the Hilo UV Index.
UV Risk Categories
In October, Hilo, United States, enjoys a warm embrace of sunshine with 283 hours of glorious sunlight, reflecting a gradual decline from the peak of 339 hours in July. This month continues the trend of abundant sunshine that sweeps through the summer months, with October still holding a vibrant light compared to earlier in the year. While slightly less bright than the sun-drenched summer, the 283 hours signify a rich tapestry of warm days perfect for outdoor adventures or simply basking in the tropical glow. As the season shifts towards cooler months, the sunshine in Hilo remains a delightful highlight, promising a picturesque backdrop for all who visit.
In Hilo, October offers a 43% chance of sunny weather, which aligns closely with the city's monthly norms. Interestingly, this figure is consistent with September and November, suggesting a relatively stable outlook for clear skies as autumn sets in. Notably, the sunniest months tend to be early in the year, with February peaking at 47%. As summer transitions into fall, the likelihood of sunshine dips, with July showing the lowest chance at 31%. However, as October arrives, residents can expect a pleasant mix of sun and clouds, making it a delightful time to enjoy the natural beauty of the region. Overall, while Hilo's reputation for rain persists, October stands out as a month with a commendable probability of brighter days.
In Hilo, United States, October marks a transition as daylight begins to wane, offering about 11 hours of sunshine. This decline follows a summer peak of 13 hours from May through July, showcasing a vibrant stretch of longer days. As the year progresses into the cooler months, daylight diminishes steadily, dropping to 10 hours by December. Interestingly, this pattern exhibits a gentle ebb and flow, with daylight clocking in at 11 hours not only in January but also in November, creating a sense of continuity as the region approaches the rhythm of winter. Overall, Hilo’s October daylight duration encapsulates the island's natural cycles, highlighting the gradual shift toward shorter days.
As October sweeps into Hilo, the average wind speed settles at a gentle 2.7 m/s (6 mph), marking a slight dip from the previous summer months. This subtle shift in breeze is part of a broader trend observed throughout the year, with wind speeds peaking in the spring and late fall months. From March's 3.5 m/s to November's 3.1 m/s, it becomes evident that Hilo enjoys a moderate and consistent wind pattern, creating a delightful environment for outdoor activities. While September shows the year’s lowest average wind speed at 2.6 m/s, October maintains a calmness that hints at the transition towards slightly stronger winds as the year concludes. This rhythmic ebb and flow of wind in Hilo not only adds to its charm but also heralds a beautifully temperate fall season.
The weather in Hilo changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Hilo and find detailed weather information for every month.
October and January exhibit some notable differences in weather patterns. In October, temperatures range from a minimum of 20°C (69°F) to a maximum of 28°C (82°F), with an average of 24°C (75°F). This month also sees higher precipitation, totaling 189 mm (7.4 in) over 23 days and a humidity level of 83%. In contrast, January experiences slightly cooler temperatures, with a minimum of 18°C (65°F) and a maximum of 25°C (77°F), averaging at 21°C (71°F). Precipitation in January is lower at 158 mm (6.2 in) over 20 days, and humidity is also marginally less at 79%. For more detailed insights into January's climate, you can check Hilo weather in January.
October in Hilo tends to be warm and humid, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 28°C (82°F). The month experiences significant rainfall, totaling about 189 mm (7.4 in) over 23 days, contributing to the high humidity at 83%. In contrast, February offers slightly cooler temperatures, with averages between 17°C (62°F) and 26°C (79°F). This month has even higher precipitation levels, totaling 262 mm (10.3 in) across the same number of days, but with a marginally lower humidity of 79%. For more details on February weather in Hilo, you can explore Hilo weather in February.
In comparing the weather patterns of October and March, October tends to be warmer with average temperatures reaching 24°C (75°F) and maximums climbing to 28°C (82°F). In contrast, March has slightly cooler temperatures, averaging 21°C (70°F) with maximums of 26°C (78°F). Precipitation is notably higher in March, totaling 225 mm (8.8 in) over 26 days, compared to October's 189 mm (7.4 in) spread over 23 days. Despite higher rainfall, March also exhibits a lower humidity level at 77% compared to October's 83%. For more details on Hilo weather specifically in March, you can visit Hilo weather in March.
When comparing the weather of October and April, both months exhibit relatively warm temperatures, with October generally being slightly warmer. In October, temperatures range from a minimum of 20°C (69°F) to a maximum of 28°C (82°F), while April sees a minimum of 18°C (65°F) and a maximum of 26°C (80°F). Precipitation levels are quite similar, with October receiving 189 mm (7.4 in) over 23 days and April experiencing slightly higher precipitation at 195 mm (7.7 in) over 25 days. Humidity remains high in both months, though October is marginally more humid at 83% compared to April's 80%. For more detailed information on April weather, you can visit Hilo weather in April.
In October, the weather tends to be warmer, with minimum temperatures around 20°C (69°F) and maximums reaching 28°C (82°F), resulting in an average of 24°C (75°F). This month experiences significant rainfall, with 189 mm (7.4 in) falling over 23 days and humidity levels at 83%. In contrast, May is slightly cooler, featuring temperatures that range from a minimum of 19°C (67°F) to a maximum of 26°C (79°F), averaging 22°C (73°F). Although it is still a wet month, May records less precipitation at 166 mm (6.5 in) across 27 days, with a humidity of 80%. For a detailed look at how Hilo's weather unfolds in May, you can check Hilo weather in May.
When comparing the weather in October and June, it is evident that both months experience warm temperatures, with October having a slightly higher average of 24°C (75°F) compared to June's 23°C (74°F). Both months share similar minimum temperatures of 20°C (69°F), but October sees a higher maximum at 28°C (82°F) against June's 27°C (80°F). In terms of precipitation, October is significantly wetter, receiving 189 mm (7.4 in) over 23 days, while June records only 106 mm (4.2 in) across 25 days. Humidity levels are similar, with October at 83% and June at 82%. For more details, you can explore Hilo weather in June.
In comparing the weather between October and July, we observe notable similarities and differences. Both months feature an average temperature of 24°C (75°F), but October generally experiences slightly cooler minimum and maximum temperatures, with ranges of 20°C (69°F) to 28°C (82°F), compared to July's 21°C (70°F) to 29°C (85°F). Precipitation levels are higher in October, with 189 mm (7.4 in) over 23 days, while July sees 131 mm (5.1 in) spread over 28 days. Both months share the same humidity level of 83%, making them similarly muggy. For a closer look at July's weather specifics, you can check out this link: Hilo weather in July.
When comparing the weather between October and August, we can observe some intriguing similarities and differences. Both months feature a similar average temperature of 24°C (75°F), but October typically has slightly lower minimum and maximum temperatures, with averages ranging from 20°C (69°F) to 28°C (82°F) as opposed to August's 21°C (70°F) to 27°C (82°F). Precipitation is somewhat lower in October, averaging 189 mm (7.4 in) over 23 days, compared to August’s 197 mm (7.8 in) over 27 days. Additionally, humidity remains high in both months, with October at 83% and August at 84%. For more detailed information on August weather, you can visit Hilo weather in August.
In comparing the weather of October and September, we see that October tends to be slightly cooler, with a minimum temperature of 20°C (69°F) compared to September’s 21°C (71°F). Both months have the same maximum temperature of 28°C (82°F), but October experiences considerably higher precipitation, with 189 mm (7.4 in) over 23 days, while September has only 108 mm (4.3 in) across 24 days. Humidity levels are quite similar, with October at 83% and September at 82%. For more detailed information about September's weather, you can visit Hilo weather in September.
October and November exhibit similar weather patterns, with both months maintaining a tropical warmth. In October, temperatures range from a minimum of 20°C (69°F) to a maximum of 28°C (82°F), averaging around 24°C (75°F). November, on the other hand, shows a slight cooling trend, with temperatures minimally dropping to 20°C (68°F) and peaking at 27°C (80°F), averaging 23°C (74°F). Precipitation decreases from 189 mm (7.4 in) over 23 rainy days in October to 153 mm (6.0 in) across 24 days in November, indicating a slightly drier pattern. Humidity remains consistent, hovering around 83% for both months. For more detailed information about Hilo's climate, you can check Hilo weather in November.
In October, Hilo experiences warm temperatures with a minimum of 20°C (69°F) and an average of 24°C (75°F), reaching a maximum of 28°C (82°F). The month is characterized by significant rainfall, with precipitation totaling 189 mm (7.4 in) over 23 days and humidity levels around 83%. Conversely, December sees slightly cooler weather, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 26°C (78°F), averaging 22°C (71°F). Rainfall increases to 228 mm (9.0 in) over 24 days, and humidity remains relatively high at 81%. For more details about the weather conditions in December, you can visit Hilo weather in December.
As October unfolds in Hilo, the weather invites a unique experience that sets it apart from other months. With average temperatures hovering around a comfortable 24°C (75°F), residents and visitors enjoy a mild climate, though daily averages can rise to a maximum of 28°C (82°F). This month is synonymous with increased humidity at 83%, creating a tropical ambiance that is even more pronounced during the notorious rainy season. October witnesses significant precipitation, with rain gracing the area 23 days of the month—resulting in a total of 189 mm (7.4 in)—a notable increase compared to the drier months preceding it. For a comprehensive view of Hilo's weather dynamics throughout the year, check out Hilo Climate.