Last updated: August 31, 2025
In Fajardo, Puerto Rico, January welcomes visitors with a mild tropical climate, where temperatures comfortably range from a maximum of 28°C (83°F) to a minimum of 21°C (70°F), averaging around 25°C (77°F). Despite the warmth, this month witnesses frequent rain, totaling approximately 57 mm (2.3 inches) over 17 days, contributing to a humidity level of 76%. These conditions create a lush, vibrant atmosphere perfect for exploring the beauty of this coastal paradise while also reminding travelers to embrace the occasional shower.
In January, Fajardo, Puerto Rico, welcomes visitors with pleasantly mild temperatures that set the tone for the year. With minimum temperatures around 21°C (70°F) and an average of 25°C (77°F), the climate is both comfortable and inviting, peaking at a cozy 28°C (83°F). As we transition into February, the weather remains consistent, slightly dipping to an average of 24°C (76°F), while maxing out at 27°C (81°F). The warmth gradually increases in the following months, with March and April showcasing averages of 25°C (76°F) and 25°C (77°F) respectively, and a noticeable rise in maximum temperatures that reach up to 29°C (84°F). This gradual warming trend continues into the late spring and summer months, where averages hover around 27°C (81°F) and maxes hit 30°C (87°F) and beyond. Overall, January serves as a delightful entry point into Fajardo's warm tropical climate, with just the right balance of cool and warmth to entice both relaxation and exploration.
In January, Fajardo, Puerto Rico experiences a moderate precipitation total of 57 mm (2.3 in), spread over approximately 17 rainy days. This sets the stage for a wet season, as rainfall gradually increases in the following months, peaking in September with 195 mm (7.7 in) and 28 wet days. The trend shows that, while January offers a relatively dry start to the year, the island's weather quickly transitions into a pattern of increasing precipitation and more frequent rain, culminating in the summer months of July and August, which consistently deliver the heaviest downpours. While January marks the beginning of this shift, it serves as a reminder of the lush, tropical conditions that define Puerto Rico in the months to follow.
In January, Fajardo, Puerto Rico experiences a comfortable humidity level of 76%, setting a pleasant tone for the start of the year. This level remains relatively stable, only nudging down to 75% in February and March, before returning to 75% for the next couple of months. As summer approaches, humidity begins to rise, peaking at 80% during both July and August, which is not uncommon for this tropical paradise. Following this high, humidity slightly descends to 79% in September and gradually stabilizes around 78% from October through November. By the end of December, the humidity returns to 76%, showcasing a cyclical trend that highlights Fajardo's tropical climate, where humidity remains a defining characteristic year-round.
In Fajardo, Puerto Rico, the UV Index in January is notably high at 9, placing it in the very high exposure category. This means you can only afford about 15 minutes of unprotected sun exposure before risking a burn. As we transition into February, the UV Index climbs to an extreme level of 11, where burn time drops to just 10 minutes. This trend of increased UV intensity continues through the spring and summer months, peaking at 14 in September, with consistent 10-minute burn times during most of the year. As the seasons shift back to winter in November and December, the UV Index tapers off to 9 and 8, yet still requires caution. It's clear that maintaining sun safety is crucial year-round. For more detailed insight into UV levels throughout the year, check out the full Fajardo UV Index.
UV Risk Categories
January in Fajardo, Puerto Rico, sets the tone for a year of radiant sunshine, offering an impressive 258 hours of bright daylight. As the months progress, the sun shines ever more generously, peaking in May with a dazzling 357 hours. This upward trend continues through the summer, with July and August also enjoying over 350 hours, making them perfect for beachgoers and outdoor enthusiasts. However, as the calendar turns towards fall, sunshine hours gradually decline yet remain abundant, with 302 hours in November and 320 hours in December. This seasonal rhythm showcases Fajardo's allure, where residents and visitors can revel in a wealth of sunny days, particularly in the spring and summer months.
In Fajardo, Puerto Rico, January ushers in a 50% chance of sunny weather, setting the stage for a delightful start to the year. While this is a promising figure, it's notably lower compared to the sunnier month of February, which boasts a 65% likelihood of sunshine. As winter transitions into spring, the chances of clear skies remain relatively high in March and November, with probabilities of 61% and 57%, respectively. However, as the summer months roll in, the chances of sun dip significantly, particularly in June, where only 20% of days are likely to be sunny. This trend suggests that while January offers a solid opportunity for sun-seekers, the tail end of the winter season and early spring presents the most dependable weather for outdoor activities.
In Fajardo, Puerto Rico, January marks the beginning of a gradual transition in daylight duration. With 11 hours of daylight at the start of the year, the sunshine remains consistent through February. As spring approaches, March brings a subtle increase to 12 hours, a trend that continues into April and May, creating longer and brighter days. By June and July, Fajardo enjoys its peak with 13 hours of daylight, perfect for beach lovers and outdoor activities. As summer wanes, daylight hours gently recede back to 12 hours in August and September, before settling at 11 hours once again from October to December. This rhythmic pattern highlights the tropical climate's consistent, inviting atmosphere year-round.
In Fajardo, Puerto Rico, January greets visitors with a gentle breeze, as the average wind speed hovers around 4.0 m/s (9 mph). This calm atmosphere sets the tone for the month, slightly increasing to 5.0 m/s (11 mph) in February, before settling back down in the subsequent months. As the year progresses toward summer, wind speeds fluctuate, peaking at 5.0 m/s (11 mph) in both July and February. Notably, the quietest winds occur in September, where speeds dip to 3.2 m/s (7 mph), creating a serene backdrop for the latter part of the year. Overall, the trend shows a blend of gentle to moderate breezes, inviting both relaxation and adventure along the vibrant coastlines of Fajardo.
Weather in Fajardo varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Fajardo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in Fajardo range from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), with an average of 25°C (77°F). The month typically sees around 57 mm (2.3 in) of precipitation over 17 days, accompanied by a humidity level of 76%. In contrast, February experiences slightly cooler average temperatures, with a maximum of 27°C (81°F) and an average of 24°C (76°F), while maintaining the same minimum of 21°C (70°F). Precipitation increases to 61 mm (2.4 in) over 21 days, and humidity is slightly lower at 75%. For more detailed information, you can check out Fajardo weather in February.
In January, temperatures typically range from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), with an average of 25°C (77°F). The month experiences 57 mm (2.3 in) of precipitation over 17 days, contributing to a humidity level of 76%. In contrast, March sees a slight increase in minimum temperature at 22°C (72°F), with similar maximum temperatures reaching 28°C (82°F) and an average of 25°C (76°F). However, March experiences higher precipitation at 78 mm (3.1 in) over 22 days, with a slightly lower humidity of 74%. For more detailed information on the weather in March, you can visit Fajardo weather in March.
In January, the weather is characterized by mild temperatures, with a minimum of 21°C (70°F) and a maximum of 28°C (83°F), along with an average temperature of 25°C (77°F). The month experiences around 57 mm (2.3 in) of precipitation over 17 days, with humidity levels at 76%.
In contrast, April sees slightly warmer conditions, featuring a minimum temperature of 22°C (71°F) and a maximum of 29°C (84°F), while maintaining the same average temperature of 25°C (77°F). However, precipitation increases to 79 mm (3.1 in) over 20 days, with humidity remaining fairly stable at 75%. For more detailed insights on the weather patterns during this month, check out Fajardo weather in April.
In January, the weather in Fajardo is characterized by mild temperatures, with a minimum of 21°C (70°F), an average of 25°C (77°F), and a maximum of 28°C (83°F). The month experiences 57 mm (2.3 in) of precipitation over 17 days, accompanied by high humidity at 76%. In contrast, May sees slightly warmer conditions, with minimum temperatures of 23°C (73°F), an average of 26°C (79°F), and a maximum of 29°C (85°F). However, this month is marked by significantly higher rainfall, totaling 109 mm (4.3 in) over 26 days, while humidity remains relatively consistent at 75%. For more details on the weather conditions in May, you can visit Fajardo weather in May.
In January, Fajardo experiences mild temperatures with a minimum of 21°C (70°F) and an average of 25°C (77°F), while precipitation averages 57 mm (2.3 in) over 17 days, accompanied by a humidity level of 76%. In contrast, June brings warmer weather, featuring a minimum temperature of 24°C (75°F) and an average of 27°C (80°F), with a higher maximum of 30°C (87°F). Additionally, June sees increased rainfall, totaling 110 mm (4.3 in) over 26 days, resulting in a slightly elevated humidity level of 77%. For more detailed information, you can visit Fajardo weather in June.
In January, the weather is generally warm with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 28°C (83°F) and an average of 25°C (77°F). However, it experiences precipitation on 17 days, accumulating to 57 mm (2.3 in), with humidity levels around 76%. Conversely, July sees slightly higher temperatures, with a minimum of 24°C (75°F), an average of 27°C (81°F), and a maximum of 30°C (86°F). This month also brings a significant increase in rainfall, totaling 149 mm (5.9 in) over 27 days, while humidity rises to 80%. For more details on July weather in Fajardo, check Fajardo weather in July.
In January, Fajardo experiences relatively mild weather, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 28°C (83°F) and an average of 25°C (77°F). The month sees around 57 mm (2.3 in) of rainfall over 17 days, and humidity levels are comfortable at 76%. In contrast, August is distinctly warmer, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 30°C (87°F) and an average of 27°C (82°F). Precipitation increases significantly, reaching 153 mm (6.0 in) over 27 days, and humidity also rises slightly to 80%. For more detailed weather insights, you can check Fajardo weather in August.
In January, the weather is milder with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), and an average temperature of 25°C (77°F). The month experiences relatively low precipitation, totaling 57 mm (2.3 in) over 17 days, coupled with a humidity level of 76%. In contrast, September sees warmer temperatures, with a minimum of 24°C (76°F) and a maximum of 31°C (88°F), averaging 27°C (82°F). However, this month also brings significantly more rainfall, accumulating 195 mm (7.7 in) across 28 days and a slight increase in humidity, reaching 79%. For more detailed information, check out Fajardo weather in September.
In January, the weather is generally warm with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), accompanied by a moderate level of humidity at 76%. The month sees around 57 mm (2.3 in) of rainfall over approximately 17 days. In contrast, October is warmer, with temperatures averaging between 24°C (75°F) and 30°C (87°F), and a slight increase in humidity at 78%. However, it also experiences significantly higher precipitation, with 187 mm (7.4 in) of rain falling over 26 days. For a more detailed look at Fajardo weather in October, check out the specifics.
In January, the weather features a minimum temperature of 21°C (70°F) and an average of 25°C (77°F), with maximums reaching 28°C (83°F). The month experiences 57 mm (2.3 in) of precipitation over 17 days, accompanied by a humidity level of 76%. In contrast, November sees slightly warmer temperatures, with a minimum of 23°C (74°F), an average of 26°C (80°F), and maximums peaking at 29°C (85°F). However, it experiences significantly higher precipitation, totaling 131 mm (5.2 in) across 25 rainy days and a humidity level of 78%. For more details, you can check out Fajardo weather in November.
In January, temperatures in Fajardo typically range from a minimum of 21°C (70°F) to a maximum of 28°C (83°F), with an average around 25°C (77°F). The month experiences about 57 mm (2.3 in) of precipitation over 17 days, maintaining a humidity level of 76%. In contrast, December offers slightly warmer conditions, with minimum temperatures at 23°C (73°F) and maximums reaching 29°C (85°F). The average temperature is around 26°C (78°F), accompanied by increased rainfall of 81 mm (3.2 in) over 24 days. Interestingly, both months share a similar humidity level of 76%. For a detailed look at December weather, check out Fajardo weather in December.
As Fajardo welcomes January, visitors can expect a slightly cooler ambiance compared to the hotter summer months, with average temperatures hovering around a comfortable 25°C (77°F). While this month still boasts warmth, it also brings an increased chance of rain, with 17 wet days contributing to the overall precipitation. Humidity levels remain elevated, giving the air a tropical feel that differs from the drier and hotter conditions of other seasons. Mild temperatures and a blend of sunshine and rain create a unique charm in January, making it a memorable time to explore the beautiful landscapes of this coastal paradise. For more detailed information, check out Fajardo Climate.