Last updated: August 21, 2025
In October, Hagatna, Guam experiences warm tropical weather characterized by a maximum temperature of 29°C (85°F) and an average of 28°C (82°F), making it an inviting destination for visitors. However, you'll want to be prepared for the frequent rain, as the month sees a substantial 356 mm (14.0 in) of precipitation spread over 29 days, resulting in a pronounced humidity level of 80%. This combination of warmth and moisture creates a lush environment, perfect for exploring Guam's natural beauty, but also calls for umbrellas and appropriate attire to fully enjoy your stay.
In October, Hagatna, Guam, showcases a warm climate with temperatures that consistently remain inviting. The minimum temperature hovers around 25°C (78°F), while daily averages rise to 28°C (82°F), peaking at a comfortable 29°C (85°F). This month maintains similar temperature patterns as the previous ones, particularly September, where a subtle increase to a maximum of 30°C (86°F) was noted. The slight variations throughout the year illustrate the region's stable tropical climate, making October a perfect time for visitors to enjoy the island's natural beauty without the extremes of hotter summer months. Overall, Hagatna's October experience is marked by pleasant warmth and a laid-back tropical vibe, inviting exploration and relaxation.
In October, Hagatna, Guam experiences significant rainfall, accumulating an impressive 356 mm (14.0 inches) over approximately 29 days of precipitation. This month continues the trend of high rainfall observed since the onset of the wet season, with October's totals closely following September's substantial 375 mm (14.8 inches). As the year progresses, the rainfall pattern is marked by peak levels in the mid-year months, particularly July and August, while both October and the preceding months reflect how the tropical climate leads to consistent moisture. Interestingly, despite a slight drop from the September peak, October still ranks as one of the wetter months, solidifying its reputation for lush greenery and a vibrant ecosystem fueled by abundant rains.
In October, Hagatna, Guam experiences a consistent humidity level of 80%, aligning with the drier trends noted during the mid-year months of June through August. This slight dip from the higher humidity recorded earlier in the year, where it hovers around 83-84%, suggests a subtle transition as the region moves into the cooler, wetter months. The gradual fluctuation in humidity is indicative of the tropical climate, where the balance between moisture and heat remains a defining characteristic throughout the year. As November approaches, humidity levels rise slightly, signaling a return to the higher averages typical of the wet season.
In October, Hagatna, Guam experiences a UV Index of 13, maintaining its status in the extreme exposure category with a consistent burn time of just 10 minutes. This reflects a slight dip from the peak index of 15 recorded in the preceding months of September and March, yet it remains evident that year-round, the sun's intensity demands vigilance. The UV Index in Hagatna has consistently hovered in the extreme range from January through October, emphasizing the importance of sun protection for residents and visitors alike. If you're planning outdoor activities, staying informed is crucial—check out the detailed data at Hagatna UV Index to help you enjoy the beautiful weather safely!
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As October unfolds in Hagatna, Guam, the island basks in 263 hours of sunshine, maintaining a pleasant balance that echoes the vibrant weather of the summer months. This is a slight dip from the peak of 336 hours in May, yet still harmonizes with the overall trend of ample sunlight characteristic of the Guamanian climate. The month showcases a shift from the more sun-drenched summer, with July and August also basking in over 300 hours of sunshine, to a gradual transition into the cooler months. As the year leans toward its end, October's sunshine serves as a gentle reminder of the tropical paradise that Guam is, perfectly embodying the island's inviting charm while hinting at the sunny days that still lie ahead.
In Hagatna, Guam, October tends to bring a noteworthy drop in sunny weather, with only a 9% chance of sunshine. This decline follows the trend observed from the summer months, where July and August recorded some of the least sunny days, at just 13% and 5%, respectively. Interestingly, this pattern of diminished sunlight starkly contrasts with the slightly brighter months of January through March, where chances of sun rise significantly, peaking at 63% in March. As the year progresses into October, residents and visitors alike may want to prepare for overcast skies and rainy spells, reminiscent of the monsoon season that often spans the latter months of the year.
In Hagatna, Guam, the rhythm of daylight shifts gently throughout the year, with October marking a subtle transition as daylight reduces to 11 hours. Following the sun-drenched months of June through September, where daylight remains consistently at 12 hours, October ushers in slightly shorter days, mirroring the daylight pattern observed in January and February. This slight decrease foreshadows the return of longer nights as November draws near, creating a seasonal ebb and flow that highlights the unique tropical climate of the region. Overall, the shift in daylight duration not only reflects the changing seasons but also enhances the natural beauty of Hagatna, inviting residents and visitors alike to savor both warm days and cool evenings.
As October sweeps in over Hagatna, Guam, the winds show a gentle resurgence, averaging 5.3 m/s (12 mph). This slight uptick follows the calmer summer months when wind speeds dipped to their lowest, including June's average of just 4.7 m/s (10 mph). Interestingly, October serves as a transitional month, bridging the serene summer breezes with the more invigorating gusts that characterize the later months of the year. By November, the winds pick up again, reaching 7.2 m/s (16 mph), signaling a return to the blustery conditions typical of Guam’s vibrant weather patterns. Thus, October's breezes, while moderate, hint at the lively winds just around the corner, inviting residents and visitors alike to enjoy the comfortable outdoor moments they present.
Weather in Hagatna varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Hagatna, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, the weather is typically warmer and wetter than in January, with average temperatures ranging from a minimum of 25°C (78°F) to a maximum of 29°C (85°F). The month sees significant rainfall, with 356 mm (14.0 in) of precipitation over 29 days, contributing to a high humidity level of 80%. In contrast, January's temperatures are slightly cooler, averaging a minimum of 25°C (77°F) and a maximum of 28°C (83°F). The precipitation drops substantially to 61 mm (2.4 in) spread across 15 days, resulting in increased humidity at 83%. For more details about weather in January, you can visit Hagatna weather in January.
In October, the weather tends to be warmer and significantly wetter compared to February. With minimum temperatures around 25°C (78°F) and an average of 28°C (82°F), it also sees maximum temperatures reaching 29°C (85°F). October experiences substantial precipitation, accumulating 356 mm (14.0 in) over 29 days, coupled with humidity levels of 80%.
In contrast, February features slightly cooler temperatures with a minimum of 25°C (78°F) and an average of 27°C (80°F), while the maximum temperature peaks at 28°C (83°F). The rain is considerably less intense, with only 77 mm (3.0 in) of precipitation recorded over 15 days and humidity at 82%. For more detailed weather information, you can visit Hagatna weather in February.
In October, the weather features consistently warm temperatures, with a minimum of 25°C (78°F) and an average of 28°C (82°F), peaking at 29°C (85°F). However, this month is also marked by significant rainfall, accumulating 356 mm (14.0 inches) over 29 days, combined with high humidity at 80%. In contrast, March experiences slightly cooler temperatures with a minimum of 25°C (77°F) and an average of 27°C (81°F), peaking at 28°C (83°F). Precipitation is much lower in March, totaling only 53 mm (2.1 inches) over 15 days, and humidity is a touch higher at 84%. For more details, visit Hagatna weather in March.
In comparing the weather between October and April, we see notable differences in precipitation and humidity levels despite similar temperatures. October boasts a higher average temperature range with a minimum of 25°C (78°F) and a maximum of 29°C (85°F), along with significant rainfall of 356 mm (14.0 in) spread over 29 days and humidity around 80%. In contrast, April maintains a slightly lower average temperature, with similar minimum and maximum values of 25°C (77°F) and 29°C (84°F) respectively, but it experiences much less rainfall at 94 mm (3.7 in) over 18 days, alongside a higher humidity level of 84%. For a detailed look at conditions in April, check out Hagatna weather in April.
October and May showcase similar average temperatures, with both months registering a minimum of 25°C (78°F) and an average of 28°C (82°F), making the warmth quite consistent. However, October tends to be significantly wetter, with a staggering 356 mm (14.0 in) of precipitation over 29 days, compared to May's 78 mm (3.1 in) over 22 days. Humidity levels are also quite close, with October at 80% and May slightly higher at 83%. This stark contrast in precipitation highlights October as a much wetter period in comparison to May. For more details on May's weather, you can visit Hagatna weather in May.
When comparing the weather in October and June, it's evident that both months share similar temperature ranges, with minimum and maximum temperatures consistently around 25°C (78°F) to 29°C (85°F) and an average of 28°C (82°F). However, October experiences significantly higher precipitation, with 356 mm (14.0 in) falling over 29 days, compared to June's 159 mm (6.3 in) over 23 days. Despite sharing the same humidity level of 80%, the substantial increase in rainfall in October suggests a much wetter climate during that month. For more detailed insights, you can check Hagatna weather in June.
In comparing the weather of October and July, we see that both months have similar average temperatures, with an average low of 26°C (78°F) and an average high of 29°C (85°F). However, October experiences significantly more rainfall, totaling 356 mm (14.0 in) over 29 days, compared to July’s 276 mm (10.9 in) on 30 days. Despite this higher precipitation, both months maintain a consistent humidity level of around 80%. For more details on July weather specifically, you can refer to Hagatna weather in July.
In comparing the weather of October and August, both months experience similar temperature ranges, with minimums around 25°C (78°F), average temperatures at 28°C (82°F), and maximums peaking at 29°C (85°F). However, October sees slightly less precipitation, accumulating 356 mm (14.0 in) over 29 days, while August records higher rainfall at 405 mm (16.0 in) across 30 days. Despite these differences in precipitation, humidity levels remain consistent at 80% for both months, creating a sticky environment typical of this region. For more details about the weather in August, you can visit Hagatna weather in August.
In comparing the weather of October and September, we notice that both months have similar temperature ranges, with October featuring a minimum of 25°C (78°F), an average of 28°C (82°F), and a maximum of 29°C (85°F). September, on the other hand, has a slightly higher maximum temperature of 30°C (86°F) while maintaining the same minimum and average temperatures. When it comes to precipitation, October records 356 mm (14.0 in) over 29 days, whereas September has a higher total of 375 mm (14.8 in) spread over 28 days. Humidity levels are also comparable, with October at 80% and September slightly higher at 81%. For more details about September weather, you can check Hagatna weather in September.
In October, the weather features a minimum temperature of 25°C (78°F) and an average of 28°C (82°F), similar to November, where the minimum is slightly higher at 26°C (79°F). Both months experience a maximum temperature of 29°C (85°F); however, October sees significantly more rainfall with 356 mm (14.0 in) over 29 days compared to November's 202 mm (8.0 in) across 26 days. Humidity levels remain comparable, with October at 80% and November slightly higher at 81%. For more detailed information, check out Hagatna weather in November.
When comparing October and December weather, one can observe subtle yet notable differences. October features slightly warmer temperatures with a minimum of 25°C (78°F) and an average of 28°C (82°F), while December maintains a minimum of 26°C (78°F) and an average of 27°C (82°F). However, October is significantly wetter, experiencing 356 mm (14.0 in) of precipitation over 29 days, compared to December's 105 mm (4.1 in) across 22 days. Humidity is also marginally higher in December at 84%, compared to 80% in October. For a more detailed look at December weather patterns, visit Hagatna weather in December.
In October, Hagatna experiences a transitional shift in weather, characterized by warmer temperatures and high humidity levels that make for a tropical atmosphere. While the average temperature remains comfortably in the high 20s°C, the notable increase in precipitation days—with nearly every day bringing rain—distinguishes this month from others. Visitors can expect lush landscapes but should be prepared for the frequent showers that contribute to the 356 mm of rainfall this month. For more insights into the climate and weather patterns in Hagatna, explore the detailed information available at Hagatna Climate.