Last updated: August 21, 2025
January in Heredia, Costa Rica offers a delightful blend of mild temperatures and vibrant greenery, with maximum highs reaching 24°C (76°F) and comfortable averages around 17°C (63°F). The month experiences a minimum temperature of 11°C (53°F), providing a refreshing respite from the tropical warmth. With a total precipitation of 93 mm (3.7 in) over 11 days, this period is characterized by occasional showers that enhance the lush landscapes and support the rich biodiversity. Coupled with a humidity level of 68%, January presents a pleasant and invigorating atmosphere, perfect for outdoor exploration and appreciating the natural beauty of this captivating region.
In January, Heredia, Costa Rica, enjoys pleasant temperatures that lay the foundation for the upcoming warm months. With a minimum of 11°C (53°F) and a comfortable average around 17°C (63°F), days can reach a maximum of 24°C (76°F), providing a delightful balance for both visitors and locals. As the month progresses into February, temperatures rise slightly, with early signs of warmth as the maximum hits 25°C (78°F), while the minimum remains steady. This trend continues through March, where averages increase to 18°C (64°F), marking the transition towards the hotter months ahead. As the year advances towards April and May, the temperatures gradually climb, showcasing a consistent pattern of warming that characterizes Heredia's climate, while nighttime lows remain relatively stable—never dipping below 14°C (58°F). Overall, January serves as a harmonious start to the year, setting a comfortable tone that will progressively warm into the vibrant tropical days of the future months.
In Heredia, Costa Rica, January marks the beginning of the year with a moderate precipitation amount of 93 mm (3.7 in), spread over approximately 11 days. This relatively light rain sets the tone for the months ahead, as precipitation begins to increase notably in April with 113 mm and peaks dramatically in May, reaching a staggering 425 mm (16.7 in). As the dry season transitions to the wet, January's rainfall is a mere hint of the intense rain that will follow, particularly during the heart of the rainy season from May through October, where monthly totals soar above 300 mm. This progression highlights Heredia's distinctive tropical climate, where the contrast between the dry and wet seasons is both striking and essential for the region's lush biodiversity.
In January, the humidity in Heredia, Costa Rica hovers at a comfortable 68%, setting a trend that continues into February. As the seasons shift from the dry to the wet months, humidity gradually increases, peaking in the summer months of June and July at an impressive 84% and 85% respectively. This high humidity contributes to the lush, vibrant landscape that Costa Rica is known for. After the rainy season, humidity levels dip again to 72% in December, showcasing the region's variability. Overall, the transition from the early months to the peak rainy season highlights a pattern of rising humidity, reflecting the tropical climate's influence on Heredia's weather.
In January, Heredia, Costa Rica experiences an extreme UV Index of 12, signaling the need for heightened sun protection, as even short exposures can lead to skin damage within just 10 minutes. This trend of elevated UV levels continues throughout the early months of the year, with the index peaking at 16 in April—the highest point before a slight moderation in May. Consistently, the UV Index hovers around 14 from February through August, maintaining the extreme exposure category. As the year transitions into its latter months, the UV Index gradually decreases; however, the risk remains significant. To stay informed and safe, you can check the detailed UV levels throughout the year at Heredia UV Index.
UV Risk Categories
In Heredia, Costa Rica, January welcomes you with an impressive 246 hours of sunshine, setting the tone for a brighter year ahead. As the seasons shift, days grow longer, and February basks in 297 hours of radiant light, while March peaks at 329 hours, showcasing the sun at its finest. As the months progress, sunshine remains plentiful, with April slightly dipping to 303 hours, before May brings a refreshing 248 hours. Even as the rainy season approaches in June and July, with 244 and 229 hours respectively, the sun still makes its presence felt. August and September enjoy a modest revival, averaging around 236 and 249 hours of sunshine. Though October sees a slight decline to 234 hours, November rebounds with 247 hours, leading into December's festive 289 hours. This pattern reflects a vibrant climate, ensuring that Heredia shines bright throughout the year, providing ample opportunities to enjoy its natural beauty.
In Heredia, Costa Rica, January stands out as one of the more promising months for sunny weather, boasting a 47% chance of sunshine. This favorable trend is significant when compared to the following months, with February trailing closely at 42% but showing a gradual decline through March and into the rainy season, where the likelihood plummets. From April onwards, the sun becomes a rare guest, with chances falling to as low as 12% in May and only 6% during the peak of August. As the year transitions back into the latter months, a slow recovery can be observed, with December offering a decent 43% chance of sun, but it’s January that truly shines as the peak month for capturing those brilliant Costa Rican rays.
In Heredia, Costa Rica, January marks the beginning of a fascinating daylight trend that underscores the region's tropical climate. With 11 hours of daylight, this month sets the stage for a gradual increase in daylight that peaks in the mid-year months. February maintains this same duration, while from March to August, daylight consistently extends to 12 hours, providing ample time for exploration and enjoyment of the lush landscapes. As the year progresses towards October, November, and December, daylight once again dips back to 11 hours, creating a rhythmic ebb and flow that highlights the balanced warmth of Central America’s seasons. This pattern not only offers a steadying predictability but also enhances the vibrant experiences to be had in Heredia throughout the year.
In Heredia, Costa Rica, January ushers in a refreshing breeze with an average wind speed of 2.4 m/s (5 mph), setting the tone for a mild and enjoyable start to the year. This slightly robust wind, which is among the highest for the month, begins to soften by February and March, settling into a gentle rhythm as the dry season progresses. As we move into April and May, the winds taper off to about 1.6 m/s (4 mph), heralding the approach of the rainy season, where the air becomes stiller. Notably, the calmest months are June through August, with wind speeds dipping to as low as 1.2 m/s (3 mph), making for tranquil, humid days. However, as the year draws to a close, winds begin to regain their vigor, reaching 2.2 m/s (5 mph) in December. This cyclical pattern not only shapes the weather but also influences the vibrant lifestyle of Heredia, making each month a unique experience in this stunning Costa Rican locale.
Weather in Heredia varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Heredia, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, we see that both months maintain a similar temperature range, with January featuring minimum temperatures of 11°C (53°F) and average highs of 24°C (76°F), while February has a slight increase, reaching a maximum of 25°C (78°F). Precipitation levels differ significantly; January experiences 93 mm (3.7 in) of rain over 11 days, whereas February sees a substantial decrease to only 43 mm (1.7 in) across 12 days. Humidity remains constant at 68% for both months, providing a consistent tropical feel. For more details, you can check Heredia weather in February.
In January, temperatures in Heredia range from a minimum of 11°C (53°F) to a maximum of 24°C (76°F), with an average of 17°C (63°F). The month experiences significant precipitation, totaling 93 mm (3.7 in) over 11 days, contributing to a humidity level of 68%. In contrast, March sees slightly warmer conditions, with temperatures oscillating between 11°C (53°F) and 25°C (76°F), and an average temperature of 18°C (64°F). Precipitation decreases significantly to 49 mm (1.9 in) across 14 days, while humidity remains relatively stable at 66%. For more detailed insights into the weather during this month, you can check Heredia weather in March.
In January, the weather in Heredia features a minimum temperature of 11°C (53°F) and an average of 17°C (63°F), reaching a maximum of 24°C (76°F). The month experiences about 93 mm (3.7 in) of precipitation over 11 days, with a humidity level of 68%. In contrast, April sees slightly warmer temperatures, with a minimum of 13°C (56°F), an average of 19°C (66°F), and a maximum of 26°C (80°F). However, April also has increased precipitation, totaling 113 mm (4.4 in) across 23 days, while humidity remains relatively stable at 67%. For more details on the April climate, you can check Heredia weather in April.
January and May showcase distinct weather patterns, with January offering milder temperatures that range from a minimum of 11°C (53°F) to a maximum of 24°C (76°F) and an average of 17°C (63°F). In contrast, May brings slightly warmer conditions, with temperatures ranging from 14°C (58°F) to 26°C (79°F) and an average of 19°C (67°F). One significant difference is the precipitation levels; January experiences 93 mm (3.7 in) over 11 days, while May sees a dramatic increase in rainfall, totaling 425 mm (16.7 in) across 29 days. Additionally, humidity levels remain similar, with January at 68% and May at 69%. For more detailed information on the weather during May, visit Heredia weather in May.
In comparing the weather between January and June, we see notable differences in temperature and precipitation. January features a milder climate with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 24°C (76°F), while June offers slightly warmer conditions, with temperatures fluctuating from a minimum of 15°C (59°F) to a maximum of 26°C (78°F). However, June is significantly wetter, receiving 341 mm (13.4 in) of precipitation over 28 days compared to January's 93 mm (3.7 in) over just 11 days. The humidity also rises during June, reaching 84%, compared to January's 68%. For more detailed information, check Heredia weather in June.
In January, the weather tends to be milder with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 24°C (76°F) and an average of 17°C (63°F). The month receives around 93 mm (3.7 in) of precipitation over approximately 11 days, with humidity levels at 68%. In contrast, July is significantly wetter and more humid, featuring temperatures that range from a minimum of 15°C (59°F) to a maximum of 25°C (77°F) and an average of 19°C (66°F). This month sees an increased rainfall of 266 mm (10.5 in) spread over 28 days, with humidity peaking at 85%. For a more detailed overview, you can check Heredia weather in July.
In January, the weather is generally mild, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 24°C (76°F) and an average of 17°C (63°F). The month typically experiences 93 mm (3.7 in) of precipitation over about 11 days, with a humidity level of 68%. In contrast, August sees warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 26°C (79°F), leading to an average temperature of 19°C (66°F). However, August is significantly wetter, receiving 304 mm (12.0 in) of rain over 28 days and a higher humidity of 82%. For more details about the August climate in Heredia, you can visit Heredia weather in August.
In January, the weather in Heredia tends to be milder, with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 24°C (76°F). The month experiences relatively low precipitation, totaling around 93 mm (3.7 in) over approximately 11 days, and the humidity level is around 68%. In contrast, September sees a slight increase in temperatures, with averages between 14°C (58°F) and 25°C (78°F), but it brings significantly more rainfall, accumulating 379 mm (14.9 in) over 29 days. The humidity also rises to 81%, making September a notably wetter and more humid month. For more insights on this month’s weather, check out Heredia weather in September.
January and October present distinct differences in weather patterns. In January, temperatures range from a minimum of 11°C (53°F) to a maximum of 24°C (76°F), with an average of 17°C (63°F), accompanied by relatively lighter precipitation of 93 mm (3.7 in) over 11 days. In contrast, October sees slightly warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 25°C (78°F), while the average reaches 19°C (66°F). However, October is marked by significantly higher rainfall, totaling 517 mm (20.4 in) over 29 days, along with increased humidity at 80%. For a more detailed insight into the weather variations during this month, you can visit Heredia weather in October.
January and November present contrasting weather patterns, despite their similar maximum temperatures. In January, temperatures range from a minimum of 11°C (53°F) to an average of 17°C (63°F) and peak at 24°C (76°F), with a relatively mild humidity of 68%. Precipitation is also lower, with just 93 mm (3.7 in) over approximately 11 rainy days. In contrast, November sees slightly warmer temperatures, with a minimum of 14°C (57°F) and an average of 18°C (65°F), but it experiences significantly higher rainfall, totaling 260 mm (10.3 in) across around 24 days. The humidity also rises to 80%, creating a noticeably more humid environment. For more detailed insights on weather conditions in November, you can explore Heredia weather in November.
In January, the weather in Heredia is slightly milder compared to December, with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 24°C (76°F). The precipitation in January is also lower, with 93 mm (3.7 in) expected over 11 days, while December sees significantly more rainfall at 156 mm (6.1 in) over 16 days. Additionally, January has a humidity level of 68%, which is a bit lower than December’s 72%. Overall, January tends to offer a more comfortable and drier climate than December. For more details, check Heredia weather in December.
As January arrives in Heredia, the weather presents a refreshing contrast to the warmer months that follow. With pleasant daytime temperatures averaging around 17°C (63°F) and comfortable evenings cooling to 11°C (53°F), this month offers a delightful escape from intense heat. While January sees moderate precipitation with about 93 mm over 11 rainy days, the landscape flourishes in lush green, making it an ideal time for exploration. The 68% humidity adds a tropical feel, but the overall atmosphere remains inviting. To delve deeper into the weather patterns and enjoy the unique charm of Heredia throughout the year, check out Heredia Climate.