Last updated: August 31, 2025
In Guaynabo, Puerto Rico, the weather in June presents a warm and humid tropical climate, with average temperatures hovering around 27°C (80°F). Daily maximums can reach up to 31°C (88°F), while the evenings cool to a comfortable 23°C (74°F). This month sees a notable 99 mm (3.9 in) of precipitation, spread across 23 days, making it a month of frequent, albeit usually brief, rain showers. With a humidity level of 77%, those visiting or residing in Guaynabo during June should be prepared for conditions that feel both tropical and sticky, ideal for enjoying the lush landscapes and vibrant culture of this beautiful region.
In June, Guaynabo, Puerto Rico, welcomes the summer heat with a minimum temperature of 23°C (74°F), rising to an average of 27°C (80°F) and peaking at 31°C (88°F). This marks a noticeable shift from earlier months, as temperatures steadily climb from the milder conditions of January through May. June stands out with its warm embrace, setting the stage for sultry summer days ahead. Visitors can expect a tropical climate that is both inviting and vibrant, perfect for enjoying the lush landscapes and outdoor activities. As the month progresses, the warmth harmonizes with the region’s rich natural beauty, making it an ideal time to explore all that Guaynabo has to offer.
In June, Guaynabo, Puerto Rico, experiences a notable surge in precipitation, recording 99 mm (3.9 in) of rainfall over 23 days. This amount marks a slight increase from the 98 mm (3.9 in) noted in May, indicating a progressive trend as the rainy season unfolds. The frequency of rainy days seems to stabilize, reflecting a consistent pattern as the region transitions into the wetter summer months. Following June, July and August see even higher precipitation levels, highlighting the peak of the rainy season, while September notably stands out with 200 mm (7.9 in) of rainfall. Such patterns emphasize the importance of preparing for increased moisture as summer approaches, ensuring the community remains resilient against the effects of heavy rains.
In June, Guaynabo, Puerto Rico, experiences a noticeable increase in humidity, reaching 77%. This marks a slight uptick from the earlier months, as the region transitions into the summer season. Throughout the first half of the year, humidity levels have hovered around 75%, but June signals the beginning of a trend where both July and August soar to a high of 80%. As the summer unfolds, the warmth in the air is coupled with a thickening atmosphere, setting the stage for the lush greenery and vibrant tropical beauty that characterizes this time of year. Observing the gradual rise in humidity underscores the unique climatic rhythm of Guaynabo, where the charm of summer is felt not just in temperature, but in the embrace of the humid air that envelops the island.
In June, Guaynabo, Puerto Rico, continues to experience a consistently high UV Index, registering at 13—categorizing it as extreme with a burn time of just 10 minutes. This marks a slight decrease from the peak UV levels observed in May but remains within a dangerous range for sun exposure. The trend over recent months reveals a persistent pattern of elevated UV indices, particularly from February through May, when values soar to 14. As the summer heat intensifies, the UV index remains a significant health concern, urging residents and visitors alike to take necessary precautions to protect their skin. For more detailed insights on UV levels throughout the year, check out Guaynabo UV Index.
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June in Guaynabo, Puerto Rico, shines with 343 hours of brilliant sunlight, marking a slight dip from the exuberance of May, which boasts 356 hours. This month reflects a trend of consistently abundant sunshine, as the region enjoys longer days from spring into summer. Following closely behind June, July continues this sunny spell with 353 hours, while August brings 349 hours of radiant light, keeping the summer glow alive. Notably, the first half of the year showcases increasing daylight hours, culminating in the peak sunshine of May before gradually tapering off. As the seasons change, Guaynabo's June still provides a vibrant canvas of sunlit days, inviting locals and visitors alike to bask in the warmth.
In Guaynabo, Puerto Rico, the likelihood of sunny weather takes a noticeable dip in June, with only 20% of the month expected to be bright and sunny. This marked decrease hints at the onset of the rainy season, following the more promising sun chances of January through May, where the probabilities range from 48% to 65%. After June, the trend continues downward, with July and August also falling below the halfway mark, showcasing a significant change in weather patterns. As the summer progresses, residents and visitors alike should prepare for more cloud cover and rain, diverging from the earlier months that tend to provide more sun-filled days.
In Guaynabo, Puerto Rico, the transition into June brings a delightful increase in daylight duration. Starting from a steady 11 hours in January and February, daytime hours gradually lengthen to reach 12 hours in March through May. By June, residents and visitors alike benefit from a full 13 hours of sunlight, creating the perfect backdrop for outdoor activities and exploration. This extended daylight continues through July before gradually tapering off again to 12 hours in August and returning to 11 hours by October. The pattern showcases the vibrant nature of Puerto Rico's climate, inviting everyone to embrace the warmth and energy of summer days.
In June in Guaynabo, Puerto Rico, the breezes become a touch more invigorating, with an average wind speed of 3.7 m/s (8 mph). This slight uptick from May’s 3.4 m/s indicates a refreshing transition as summer unfolds. Following the upward trend seen from April’s calmer winds, June’s breezes provide a delightful backdrop for outdoor activities and leisurely strolls. Interestingly, the winds continue to rise in July, hitting 4.0 m/s, suggesting that this period heralds the beginning of a more consistently breezy season. Overall, June stands out as a moment where the gentle winds start to invigorate the island, marking a seasonal shift that invites residents and visitors alike to embrace the summer warmth.
Weather in Guaynabo varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Guaynabo, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January showcase contrasting weather patterns. June boasts warmer temperatures with an average of 27°C (80°F), peaking at 31°C (88°F), while January is milder, averaging 24°C (76°F) with a maximum of 29°C (84°F). Precipitation is more prevalent in June with 99 mm (3.9 in) over 23 days, compared to January's 48 mm (1.9 in) spread across 16 days, making January a drier month. Humidity levels remain similar, hovering around 77% in June and 76% in January, providing a consistently humid atmosphere year-round. For more specific details about January weather, check out Guaynabo weather in January.
When comparing the weather in June and February, it's clear that June tends to be warmer and wetter. In June, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), with an average of 27°C (80°F). In contrast, February offers slightly cooler temperatures, with a minimum of 20°C (69°F) and a maximum of 28°C (83°F), averaging 24°C (75°F). Additionally, June experiences more precipitation, totaling 99 mm (3.9 in) over 23 days, compared to February's 53 mm (2.1 in) spread over 18 days. Humidity levels are somewhat similar, with February at 75% and June slightly higher at 77%. For more detailed insights into February's weather, check out Guaynabo weather in February.
In comparison between June and March, June tends to be warmer, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), whereas March features slightly cooler temperatures, with a minimum of 20°C (69°F) and a maximum of 29°C (85°F). June also experiences higher humidity at 77% compared to March's 74%, contributing to a more tropical feel. Additionally, while both months see considerable rainfall, June has more precipitation at 99 mm (3.9 in) over 23 days, compared to March's 80 mm (3.2 in) over 21 days. For more detailed insights, you can check out the Guaynabo weather in March.
When comparing the weather in June and April, June tends to be warmer and slightly more humid. In June, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), with an average of 27°C (80°F), while April features slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 30°C (86°F), averaging 25°C (77°F). Additionally, June experiences more precipitation, with 99 mm (3.9 inches) falling over 23 days compared to April's 77 mm (3.0 inches) over 20 days. The humidity in June is also higher at 77%, compared to 75% in April. For more detailed insights into April weather, you can visit Guaynabo weather in April.
In comparing the weather conditions of June and May, we observe a slight increase in average temperature, with June averaging 27°C (80°F) compared to May's 26°C (79°F). While both months experience similar high temperatures, June has a minimum temperature of 23°C (74°F) versus May's 22°C (72°F). Precipitation levels are almost identical, with June recording 99 mm over 23 days and May slightly lower at 98 mm over 24 days. Additionally, June exhibits a marginally higher humidity level at 77%, compared to May's 75%. Overall, both months are characterized by warm temperatures with frequent rainfall. For more detailed information, visit Guaynabo weather in May.
In comparing the weather between June and July, we see some notable similarities and differences. Both months have a minimum temperature of 23°C (74°F), and the average temperature remains consistent at around 27°C (80°F). The maximum temperature also peaks at 31°C (88°F) for both months. However, July experiences slightly higher precipitation, with 124 mm (4.9 in) over 24 days compared to June's 99 mm (3.9 in) over 23 days. Additionally, humidity increases slightly in July to 80%, up from June's 77%. For more detailed insights into July's weather, check out Guaynabo weather in July.
In June, the weather features a minimum temperature of 23°C (74°F) and an average high of 31°C (88°F), with precipitation measuring around 99 mm (3.9 in) over 23 days. The humidity is relatively high at 77%. In contrast, August sees similar temperature ranges with a minimum of 23°C (74°F) and an average that slightly increases to 28°C (82°F), peaking at 31°C (89°F). However, August experiences more rainfall, totaling 130 mm (5.1 in) across 25 days, and slightly higher humidity at 80%. For more detailed information, you can check Guaynabo weather in August.
In June, the weather is warm, with temperatures averaging around 27°C (80°F) and reaching a maximum of 31°C (88°F). However, it also experiences significant rainfall, with 99 mm (3.9 in) of precipitation over 23 days and humidity levels around 77%. In contrast, September sees similar minimum temperatures but a slightly higher average of 27°C (81°F) and a maximum of 32°C (90°F). The month is notably wetter, with a total of 200 mm (7.9 in) of precipitation across 27 days and a slight increase in humidity to 79%. For a detailed look at the weather in September, check Guaynabo weather in September.
In both June and October, the temperatures remain consistent, with minimums of 23°C (74°F), average highs around 27°C (80°F), and maximums reaching 31°C (88°F). However, October is considerably wetter, receiving 183 mm (7.2 in) of precipitation over 27 days, compared to June's 99 mm (3.9 in) across 23 days. The humidity levels are quite similar, with June at 77% and October slightly higher at 78%. For more detailed insights, you can check out Guaynabo weather in October.
June and November share relatively similar weather patterns, both characterized by warm temperatures and considerable humidity. In June, temperatures range from a minimum of 23°C (74°F) to a maximum of 31°C (88°F) with an average of 27°C (80°F). Rainfall is frequent, with 99 mm (3.9 in) observed over 23 days, contributing to a humidity level of 77%. In contrast, November sees slightly lower temperatures, with a minimum of 22°C (72°F), an average of 26°C (79°F), and a maximum of 30°C (86°F). Rainfall in November is a bit higher at 120 mm (4.7 in) over the same number of rainy days, resulting in a humidity of 78%. For more specific insights on November weather patterns in Guaynabo, you can check this link: Guaynabo weather in November.
In June, the weather is warmer with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 31°C (88°F), and an average of 27°C (80°F). The month experiences significant rainfall, with about 99 mm (3.9 inches) of precipitation over 23 days, resulting in a humidity level of 77%. In contrast, December offers slightly cooler weather, with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 30°C (86°F), and an average temperature of 25°C (77°F). Additionally, December sees less precipitation, totaling 66 mm (2.6 inches) over 22 days, and a similar humidity level of 76%. For more detailed information, check out Guaynabo weather in December.
In June, Guaynabo experiences a shift as the temperature begins to peak, showcasing warm days with a mix of humidity that lingers throughout the month. While the average warmth reaches a pleasant 27°C, it's the increase in rainfall that distinguishes June from other months, with nearly three weeks of precipitation contributing to an overall moist atmosphere. This combination of warmth and frequent rain creates a unique tropical environment, making June an ideal time for lush greenery to thrive. If you're curious to explore more about Guaynabo's weather patterns throughout the year, visit Guaynabo Climate for detailed insights.