Last updated: August 31, 2025
In Bayamón, Puerto Rico, October brings a warm tropical climate characterized by an average temperature of 27°C (81°F), with daily highs reaching up to 32°C (89°F) and nighttime lows around 24°C (75°F). Despite the warmth, October is notable for its high humidity levels at 78%, creating a lush atmosphere. Rainfall is frequent, with an average precipitation of 136 mm (5.3 in) spread across approximately 22 days of the month, making it one of the wetter periods in the region. Visitors and residents alike can expect a mix of sunny moments interspersed with refreshing rain showers, typical of this vibrant locale during the fall season.
In October, Bayamon, Puerto Rico experiences a delightful transition in temperatures, making it an appealing time to visit. The minimum temperature settles at a comfortable 24°C (75°F), while the average hovers around 27°C (81°F), ideal for outdoor exploration. With highs touching 32°C (89°F), the warmth continues to linger, yet there's a slight dip compared to the peak summer months. This month marks a gradual shift from the hotter days of summer, as the temperatures begin to cool, while still providing plenty of sunshine for beach lovers and adventurers alike. As you stroll through this vibrant city, you'll find that October offers the perfect blend of warmth and pleasant breezes—a prelude to the cooler months ahead.
October in Bayamon, Puerto Rico, marks a significant shift in rainfall patterns, as the month experiences 136 mm (5.3 in) of precipitation over 22 days. This considerable amount of rainfall reflects a continuation of the wet season, following the heavy September deluge of 172 mm (6.8 in). As the region transitions into autumn, October's precipitation remains elevated, although it drops slightly compared to its predecessor. The frequency of rainy days during this month highlights a persistent cycle of wet weather, contributing to an overall increase in humidity and vitality in the local ecosystem. As the year progresses, the stormy spells of September are gradually tempered, paving the way for November's forecast, which typically sees a reduction in both rainfall and rainy days.
In October, Bayamon, Puerto Rico experiences a humidity level of 78%, which signifies a slight decline from the summer peak months of July and August, both at 80%. This modest decrease reflects the transition into the fall season, marked by a gradual decrease in humidity that persists through November. Overall, the city's humidity levels remain relatively consistent throughout the year, fluctuating between 74% and 80%. Notably, October continues the trend of elevated humidity typical for the Caribbean, contributing to the area's lush landscape and vibrant tropical climate, all while hinting at the more comfortable conditions that await as the year draws to a close.
In October, Bayamon, Puerto Rico experiences a UV Index of 12, categorized as extreme, with a burn time of just 10 minutes. This marks a slight decrease from the peak levels seen in the summer months, yet it remains a crucial reminder for sun safety. From January's UV Index of 9 to October's 12, the trend highlights consistently high sun exposure throughout the year, especially during the spring and summer when levels climb to 14. Visitors and residents alike should take precautions against UV radiation and protect their skin, as the risks remain elevated even as the calendar shifts towards cooler months. For more information on the UV Index in Bayamon, explore Bayamon UV Index.
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As October unfolds in Bayamón, Puerto Rico, the golden glow of sunshine continues to grace the region, bringing with it an impressive 310 hours of daylight. This month falls just shy of the peak sun hours seen in the summer, where May and July boast a remarkable 356 and 354 hours, respectively. As the year progresses, it's fascinating to observe how October maintains a substantial amount of sunlight despite the approaching cooler months. Following the vibrant summer, the sunlit hours gradually retreat, yet October's warmth still lingers, promising residents and visitors alike an inviting atmosphere. With slightly fewer hours than September's 311, this month showcases a balance between summer's exuberance and the onset of fall, making it a perfect time to enjoy the outdoors before winter descends.
In Bayamon, Puerto Rico, October sees a 49% chance of sunny weather, placing it in the middle range when compared to the rest of the year. This month, along with April and September, tends to show a slight decrease in sunshine opportunities, especially when contrasted with the brighter months of January and February, where chances soar up to 51% and 71%, respectively. Notably, the summer months, such as June and July, dip significantly, reflecting Puerto Rico's tropical climate. October's likelihood of sunny days closely mirrors the transitions of the seasons, hinting at a balance between lingering warmth and the onset of the wetter months ahead. As we head toward November, the chance for sunshine climbs again, promising more favorable weather as the year winds down.
In Bayamón, Puerto Rico, October marks a transition as daylight begins to wane, offering around 11 hours of daylight each day. This is a continuation of the shorter days seen in the earlier months of the year, as daylight stretches to its peak of 13 hours during the summer months of June and July. Following the vibrancy of summer, daylight gradually recedes, creating a rhythmic pattern throughout the year. Notably, from March through August, residents enjoy longer days that foster an exuberant outdoor lifestyle, while the return to 11 hours of daylight in October signals the onset of autumn, inviting a cozy change in the atmosphere. This cyclical dance of light not only defines the daily routines of the community but also reflects the captivating beauty of Puerto Rico’s diverse seasons.
As October sweeps in Bayamón, Puerto Rico, the winds begin to shift, reflecting a calm transition towards the end of the year. With an average wind speed of 3.4 m/s (8 mph), October experiences a noticeable dip compared to the gustier summer months of July and August, which peak at 5.3 m/s (12 mph). This trend of decreasing winds continues from September’s gentle 3.2 m/s (7 mph), signaling a softening of breezes as the island approaches the cooler months. In fact, October's winds start to align more closely with those found in November and April, suggesting a more serene atmosphere that invites locals and visitors alike to enjoy the tranquil beauty of the season. These gentle winds enhance the charm of Bayamón, creating an inviting backdrop for outdoor activities and leisurely strolls under the autumn sky.
Weather in Bayamon varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Bayamon, focusing on differences in temperature, rainfall, humidity, and UV levels.
October weather is characterized by warmer temperatures, with averages reaching up to 27°C (81°F) and highs of 32°C (89°F). This month experiences significant rainfall, totaling 136 mm (5.3 in) over about 22 days and maintaining a relatively high humidity level of 78%. In contrast, January offers slightly cooler and drier conditions, with averages of 25°C (77°F) and maximum temperatures around 30°C (86°F). Precipitation drops to 39 mm (1.5 in) over just 12 days, while humidity remains similar at 76%. For more detailed insights into January weather, check out Bayamon weather in January.
In comparing the weather between October and February, October generally presents warmer temperatures, with averages reaching 27°C (81°F) and a maximum of 32°C (89°F). In contrast, February remains somewhat cooler, boasting an average of 25°C (77°F) and a peak of 30°C (85°F). Additionally, October experiences significantly higher precipitation, totaling 136 mm (5.3 in) over 22 days, while February sees a much lighter rainfall of 43 mm (1.7 in) across just 13 days. The humidity is slightly higher in October at 78%, compared to February's 75%. For more detailed information, you can check Bayamon weather in February.
In comparing the weather between October and March, October tends to be warmer overall, featuring minimum temperatures of 24°C (75°F) and an average high of 32°C (89°F). In contrast, March has slightly cooler temperatures, with a minimum of 21°C (70°F) and an average high of 31°C (87°F). Precipitation is notably higher in October, with 136 mm (5.3 in) falling over 22 days, compared to March's 72 mm (2.8 in) over 14 days. Additionally, humidity levels are slightly higher in October at 78%, while March has 74% humidity. For more detailed information on March weather, you can visit Bayamon weather in March.
When comparing the weather in October and April, October tends to be slightly warmer with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F). In contrast, April’s temperatures are slightly cooler, with a minimum of 22°C (71°F) and a maximum of 31°C (88°F). Additionally, October experiences significantly higher precipitation levels, with 136 mm (5.3 in) spread across about 22 days, while April sees much less rainfall at 55 mm (2.2 in) over just 10 days. Humidity is also relatively high in both months, with October at 78% and April at 75%. For more detailed information on the climate during this month, you can check Bayamon weather in April.
When comparing the weather in October and May, both months exhibit warm temperatures, with October averaging a minimum of 24°C (75°F) and a maximum of 32°C (89°F), while May has a slightly lower minimum of 23°C (73°F) and a similar maximum of 32°C (90°F). The average temperature remains consistent at around 27°C (81°F) for both months. However, October is considerably wetter, receiving 136 mm (5.3 in) of precipitation over 22 days, compared to May's 58 mm (2.3 in) over 14 days. Humidity levels are relatively similar, with October at 78% and May slightly lower at 75%. For more detailed insights into May's weather, you can check Bayamon weather in May.
When comparing the weather in October and June, both months exhibit similar temperature ranges, with minimums around 24°C (75°F), averages of 27°C (81°F), and maximums reaching 32°C (89°F in October and 90°F in June). However, October tends to be wetter, receiving 136 mm (5.3 in) of precipitation over 22 days, compared to June’s 62 mm (2.4 in) over 15 days. Humidity levels are slightly higher in October at 78%, compared to 77% in June. These factors contribute to a more humid and rainy atmosphere in October, while June is somewhat drier. For more details, you can check Bayamon weather in June.
When comparing the weather in October and July, we see some notable differences. Both months have similar average temperatures, with October averaging 27°C (81°F) and July slightly warmer at 28°C (82°F). However, October tends to be wetter, experiencing 136 mm (5.3 in) of rainfall over approximately 22 days, while July sees a significantly lower precipitation of 76 mm (3.0 in) over 17 days. Humidity levels are relatively close, with October at 78% and July at 80%. For more details on July's weather patterns, you can check out Bayamon weather in July.
The weather in October is slightly cooler than in August, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), compared to August's range of 25°C (77°F) to 32°C (90°F). October also experiences more rainfall, with a total precipitation of 136 mm (5.3 in) over 22 days, while August sees less precipitation at 86 mm (3.4 in) over 18 days. Additionally, humidity levels remain high in both months, with October at 78% and August at 80%. For a more detailed look at August's weather patterns, visit Bayamon weather in August.
In comparing the weather between September and October, we see some notable differences. October’s temperatures are slightly lower, with an average of 27°C (81°F), compared to September's average of 28°C (82°F). Additionally, while both months reach a maximum of 32°C (90°F), October has a slightly higher minimum temperature of 24°C (75°F) compared to 25°C (77°F) in September. Precipitation also decreases in October, totaling 136 mm (5.3 inches) over 22 days, compared to September’s 172 mm (6.8 inches) across 23 days. Humidity remains similar, with October at 78% and September at 79%. For a detailed look at September's weather, you can visit Bayamon weather in September.
October and November present a gradual transition in weather conditions. In October, temperatures range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 27°C (81°F). This month experiences a significant amount of rainfall, totaling 136 mm (5.3 in) over 22 days, while maintaining a constant humidity level of 78%. In contrast, November sees slightly cooler temperatures, with a minimum of 23°C (74°F), an average of 26°C (80°F), and a maximum of 30°C (87°F). Precipitation decreases to 93 mm (3.7 in) over 17 days, while the humidity remains steady at 78%. For a detailed outlook, check Bayamon weather in November.
In October, the weather tends to be warmer, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), coupled with higher precipitation at 136 mm (5.3 in) over 22 days. The humidity is relatively high at 78%, which can make the heat feel more intense. In contrast, December brings slightly cooler temperatures, with averages of 22°C (73°F) to 31°C (87°F), and significantly less rainfall of 50 mm (2.0 in) over 16 days. The humidity drops slightly to 76%, making for a more comfortable climate. For more detailed information, check out Bayamon weather in December.
As October unfolds in Bayamon, residents and visitors alike experience a distinctive shift in weather patterns. While daytime temperatures remain fairly warm, peaking at 32°C, the overall atmosphere feels more humid and wet compared to the dry months preceding it. With an average humidity of 78% and precipitation occurring on 22 days, this month notably features an increase in rainfall, contributing to the lush greenery synonymous with the region. These conditions set October apart, marking it as a transitional phase before the cooler, drier months arrive. For a deeper look at Bayamon's weather trends, check out Bayamon Climate.