Last updated: August 31, 2025
In January, Loiza, Puerto Rico offers a tropical escape with a maximum temperature reaching 29°C (85°F), while the average hovers around a comfortable 25°C (77°F). Visitors can expect a slightly cool atmosphere as the temperature dips to a minimum of 21°C (69°F). While January is characterized by moderate humidity at 76%, it also brings about 38 mm (1.5 in) of rainfall over 12 days, adding a refreshing touch to the lush landscape. Whether exploring the vibrant culture or enjoying the serene beaches, January in Loiza is a delightful blend of warm temperatures and occasional showers, perfect for travelers seeking a captivating Caribbean experience.
In January, Loiza, Puerto Rico, experiences a delightful coastal climate with temperatures ranging from a mild 21°C (69°F) at night to a warm 29°C (85°F) during the day, averaging around 25°C (77°F). This month marks the start of the year with pleasant weather that invites outdoor activities and exploration. As the months progress into February and March, temperatures remain relatively consistent, maintaining a minimum of 21°C and averaging 25°C. However, by the end of March, you might notice a slight uptick, with maximums peaking at 30°C (86°F). The warmth gradually intensifies from April onward, leading to a minimum of 22°C (71°F) and a maximum of 31°C (88°F) in April. As spring unfolds into the summer months, temperatures stabilize around 32°C (90°F) during the day while still enjoying cool nights. Overall, January serves as a pleasant introduction to the warm tropical weather characteristic of Loiza, setting the stage for the sun-soaked months to come.
In January, Loiza, Puerto Rico experiences relatively mild precipitation, with 38 mm (1.5 in) falling over 12 days. This marks the beginning of the wetter season, as monthly rainfall gradually increases towards the peak in September, which sees an impressive 173 mm (6.8 in). Following January, February sees a slight uptick to 43 mm (1.7 in), maintaining a steady pattern of rainfall throughout the winter months. As the year progresses, precipitation levels notably rise, particularly from March to August, where totals fluctuate between 67 mm (2.6 in) and 99 mm (3.9 in). August and September are the rainiest months, each bringing a significant surge in precipitation, underscoring a pronounced wet season that captivates the essence of the tropical climate in Loiza.
In January, the humidity in Loiza, Puerto Rico sits comfortably at 76%, setting a trend that persists into the following months. As the seasons shift towards spring, humidity slightly decreases, hitting 74% in March, before stabilizing at around 75% through May. However, as summer approaches, the humidity begins to rise again, peaking at 80% in July and August, creating a tropical atmosphere that is characteristic of the region. The humidity gradually tapers off in the fall, settling back to 76% by December. This cyclical pattern highlights the island's warm and humid climate, where living conditions are consistently moist year-round, enriching the lush landscapes that Puerto Rico is known for.
In Loiza, Puerto Rico, January kicks off the year with a UV Index of 9, classified as very high, which means sun exposure can lead to skin damage in just 15 minutes. As the months progress into February and March, the index soars to 11 and 13 respectively, moving into the extreme exposure category, with a dangerously quick burn time of only 10 minutes. This trend of high UV levels continues through May, peaking at 14 before slightly tapering down during the latter half of the year. Notably, November and December experience a return to the very high category, yet still demand caution with 15-minute burn times. With these insights, it’s clear that residents and visitors should remain vigilant about sun safety throughout the year. For more detailed information, visit Loiza UV Index.
UV Risk Categories
In January, Loiza, Puerto Rico, welcomes the year with a delightful average of 257 hours of sunshine, setting a pleasantly bright tone for the months ahead. As the calendar turns to February, the sun shines even brighter, with an increase to 303 hours, hinting at the warmer days to come. This upward trend continues beautifully through March and April, each boasting 346 hours of radiant sunshine, creating the perfect backdrop for outdoor adventures. May peaks with 356 hours, embracing the summer vibes, while June sees a slight dip to 343 hours, yet still offers ample daylight for sun seekers. The summer continues strong through July and August, where sunshine hours hover around the mid-350s, before gradually tapering off in the fall months of September and October with 313 hours each. As November and December approach, the sunshine remains generous, wrapping up the year with 299 and 319 hours, respectively. Overall, Loiza's sunshine trend showcases a mesmerizing journey from the new year's gentle light to the vibrant embrace of summer, making it a year-round haven for beach lovers and sun worshippers alike.
In Loiza, Puerto Rico, January brings a 51% chance of sunny weather, setting the stage for a mix of delightful sunny days and occasional clouds. This month, while it offers more sunshine compared to the summer months, such as June with only a 24% chance, it falls short when juxtaposed with February, where the sunshine probability jumps to an impressive 70%. As winter transitions into spring, the chance of clear skies generally fluctuates, peaking again in the latter part of the year, where November and December boast 61% and 63% respectively. Overall, January provides a solid foundation for enjoying the tropical climate, making it a fantastic time for visitors to experience the beauty of Puerto Rico.
In Loiza, Puerto Rico, January welcomes a consistent 11 hours of daylight, which continues into February, creating a serene atmosphere perfect for enjoying the island's natural beauty. As spring approaches in March, daylight begins to stretch, increasing to 12 hours, a trend that persists through May. This gradual progression mirrors the blooming vibrancy of the season, inviting outdoor activities and exploration. June and July bring the maximum daylight, with 13 hours to bask in, making these months ideal for beach outings and sunset gatherings. As summer wanes into August, daylight reduces slightly to 12 hours, maintaining a warm and inviting ambiance. September and October then settle into 11 hours, returning to the rhythm of the new year, while November and December mirror January's daylight duration, wrapping up the year with the same gentle glow that started it all.
In January, Loiza, Puerto Rico, welcomes the year with an average wind speed of 4.1 m/s (9 mph), setting a gentle yet invigorating tone for the month. As the seasons transition into February, the winds pick up slightly to 5.2 m/s (12 mph), ushering in a brisker atmosphere that continues through to July, where the winds peak at 5.3 m/s (12 mph). Following this summer swell, there’s a noticeable decline in wind speeds as the year progresses, with September and October experiencing the calmest conditions at 3.2 m/s (7 mph) and 3.5 m/s (8 mph) respectively. By December, the winds slightly rebound to 4.4 m/s (10 mph), closing the year on a more lively note. This trend reveals a dynamic interplay of winds throughout the year, creating a unique climatic experience for residents and visitors alike.
Weather in Loiza varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Loiza, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, we observe that both months feature similar temperature ranges, with January and February having minimum temperatures around 21°C (69°F), average temperatures of 25°C (77°F), and maximum temperatures peaking at 29°C (85°F). However, February sees a slight increase in precipitation, with 43 mm (1.7 in) compared to January's 38 mm (1.5 in), while maintaining the same number of rainy days at 12. Additionally, February's humidity is marginally lower at 75% compared to January's 76%. For more detailed information, you can visit Loiza weather in February.
When comparing the weather in January and March, both months exhibit warm temperatures, with January seeing a minimum of 21°C (69°F) and an average of 25°C (77°F), while March maintains similar figures with a minimum of 21°C (71°F) and an average of 25°C (77°F) as well. However, March tends to be slightly warmer, reaching a maximum of 30°C (86°F), compared to January's 29°C (85°F). Additionally, March experiences more rainfall, with 67 mm (2.6 in) of precipitation over 14 days, in contrast to January's 38 mm (1.5 in) over 12 days. Humidity levels are quite comparable, with January at 76% and March slightly lower at 74%. For more specific details, check out Loiza weather in March.
In January, the weather in Loiza typically features a minimum temperature of 21°C (69°F) and an average high of 29°C (85°F), with about 38 mm (1.5 in) of rain spread over 12 days and a humidity level of 76%. In contrast, April sees slightly warmer temperatures, with a minimum of 22°C (71°F) and a peak of 31°C (88°F), as well as increased precipitation at 56 mm (2.2 in) over 10 days, accompanied by a marginally lower humidity of 75%. For a more detailed look at April's weather conditions, you can visit Loiza weather in April.
In January, temperatures range from a mild 21°C (69°F) at night to an average high of 29°C (85°F) during the day, accompanied by 38 mm (1.5 in) of precipitation over 12 days, with humidity levels at 76%. In contrast, May sees slightly warmer weather, with minimum temperatures of 23°C (73°F) and average highs reaching 32°C (90°F). Precipitation increases to 64 mm (2.5 in) over 13 days, while humidity remains quite similar at 75%. For a more detailed look at the conditions in May, you can refer to Loiza weather in May.
In January, the weather is generally mild with temperatures ranging from a minimum of 21°C (69°F) to a maximum of 29°C (85°F), while the average temperature sits around 25°C (77°F). It experiences moderate precipitation, totaling 38 mm (1.5 in) over about 12 days, coupled with a fairly high humidity level of 76%.
In contrast, June brings warmer weather, with minimum temperatures of 24°C (75°F) and maximum temperatures reaching 32°C (90°F), resulting in an average of 27°C (81°F). The month sees increased precipitation at 68 mm (2.7 in), occurring over approximately 15 days, along with slightly higher humidity at 77%. For more details on the weather during June, you can check Loiza weather in June.
In January, the weather in Loiza is warm and relatively dry, with temperatures ranging from a minimum of 21°C (69°F) to a maximum of 29°C (85°F) and an average of 25°C (77°F). The month experiences about 38 mm (1.5 in) of precipitation over approximately 12 days, coupled with a humidity level of 76%. Conversely, July sees a slight increase in temperatures, with minimums around 24°C (76°F) and maximums reaching 32°C (90°F), resulting in an average of 28°C (82°F). However, the month is wetter, with 87 mm (3.4 in) of rainfall spread across around 18 days, and a slight increase in humidity to 80%. For more details on July weather in Loiza, check out Loiza weather in July.
In January, the weather is relatively warm, with average temperatures ranging from a minimum of 21°C (69°F) to a maximum of 29°C (85°F), accompanied by moderate humidity at 76%. During this month, precipitation is also light, totaling 38 mm (1.5 in) over about 12 days. In contrast, August experiences even warmer conditions, with temperatures ranging from a minimum of 24°C (76°F) to a peak of 32°C (90°F) and higher humidity levels at 80%. Additionally, precipitation increases significantly to 99 mm (3.9 in), occurring over 18 days. For a more detailed look at August weather, check out Loiza weather in August.
January and September in Loiza showcase distinct weather patterns. In January, the temperatures are generally milder, with a minimum high of 21°C (69°F) and an average temperature of 25°C (77°F), while September sees warmer conditions with minimum temperatures of 24°C (76°F) and an average of 28°C (82°F). Additionally, January experiences lower precipitation levels, totaling 38 mm (1.5 in) across 12 days, in contrast to September, which has significantly higher rainfall at 173 mm (6.8 in) over 23 days. The humidity remains relatively consistent between the two months, with January at 76% and September slightly higher at 79%. For more detailed information, check out Loiza weather in September.
In January, the weather is generally warm with temperatures ranging from a minimum of 21°C (69°F) to a maximum of 29°C (85°F), and an average of 25°C (77°F). It experiences a moderate level of precipitation at 38 mm (1.5 in) over approximately 12 days, while humidity levels hover around 76%. In contrast, October sees slightly warmer temperatures, with a minimum of 24°C (75°F) and a maximum of 32°C (89°F), averaging 27°C (81°F). However, it is significantly wetter, with total precipitation reaching 145 mm (5.7 in) over 22 days and humidity rising to 78%. For more details, check out Loiza weather in October.
In comparing January and November weather, January typically offers slightly cooler temperatures, with average highs reaching up to 29°C (85°F), while November sees maximums of 31°C (87°F). January experiences a minimum temperature of 21°C (69°F), whereas November starts at a warmer 23°C (74°F). When it comes to precipitation, November is notably wetter, receiving 106 mm (4.2 in) over 16 days, compared to January’s 38 mm (1.5 in) over 12 days. Humidity levels remain fairly similar, with January at 76% and November slightly higher at 78%. For more detailed insights about November weather, visit Loiza weather in November.
In comparing the weather between January and December, January experiences slightly lower temperatures, with an average of 25°C (77°F) compared to December's 26°C (78°F). While both months have similar humidity levels at 76%, December sees more precipitation, totaling 51 mm (2.0 in) over 16 days versus January's 38 mm (1.5 in) over 12 days. Additionally, December's maximum temperature can reach up to 31°C (87°F), making it warmer than January's peak of 29°C (85°F). For more detailed information, you can visit Loiza weather in December.
As winter gives way to the New Year, January in Loiza welcomes visitors with a temperate climate that's generally cooler and more restful compared to the sweltering heat of summer months. With average temperatures hovering around a comfortable 25°C (77°F), you can expect pleasantly mild days and refreshing evenings. However, this month is also marked by a notable increase in precipitation, with rainy spells occurring on nearly half the days, increasing the lush greenery the island is famous for. The humidity can feel quite pronounced at 76%, adding to the tropical ambiance that characterizes the area throughout the year. For more details on how January weather compares to the rest of the year, visit Loiza Climate.