Last updated: August 21, 2025
Experience the vibrant January weather of Santa Ana, Costa Rica, where temperatures reach a pleasant maximum of 27°C (82°F) and an average of 20°C (68°F). This charming month showcases a minimum temperature of 13°C (56°F), making it ideal for outdoor activities. Despite experiencing 32 mm (1.3 in) of rainfall over six days, the humidity remains at a comfortable 68%, contributing to the lush surroundings. Whether exploring local attractions or simply enjoying the serene landscapes, January offers a delightful blend of warmth and refreshing breezes.
In January, Santa Ana, Costa Rica, welcomes the New Year with an inviting climate, featuring temperatures that range from a cool 13°C (56°F) at night to a comfortable 27°C (82°F) during the day, averaging around 20°C (68°F). As the month progresses into February, we see a slight rise in both the maximum and average temperatures, reaching 28°C (83°F) and 69°F respectively, while the chilly nights remain at a pleasant 13°C (56°F). This upward trend continues into March and April, where daytime highs hover around 28°C (83°F) and 29°C (85°F), with average temperatures stabilizing at 21°C (70°F). Interestingly, as the season advances into May through July, the daytime temperatures moderate back to the 27-28°C (81-83°F) range, accompanied by consistently mild nights that seldom drop below 16°C (61°F). By the time we reach the later months, such as November and December, temperatures become a touch cooler, yet still maintain appealing highs around 26-27°C (79-80°F), ensuring that Santa Ana retains its charm as a destination for those seeking a mild, tropical escape.
In January, Santa Ana experiences relatively low precipitation, with only 32 mm (1.3 in) falling over just 6 days of the month. This marks a stark contrast to the following months, where rainfall begins to pick up significantly. By April, precipitation swells to 79 mm (3.1 in) across 16 days, heralding the onset of the rainy season. The true deluge, however, arrives from May to October, with rain totals soaring as high as 570 mm (22.4 in) in October, accompanied by frequent rain on 29 days. January provides a gentle introduction to the wetter months ahead, as the climate transitions from the dry season, laying the groundwork for the lush landscapes characteristic of Costa Rica's tropical paradise.
In January, Santa Ana, Costa Rica, experiences a mild humidity level of 68%, which sets the tone for a month that typically balances comfort and warmth. This humidity level remains consistent into February, maintaining the same percentage. However, as the dry season continues into March and April, there's a slight dip to 66% and 67% respectively, offering a respite before the transition to the wetter months. By May, the humidity rises again to 69%, hinting at the approaching rainy season. The sharpest increase occurs from June through August, where humidity surges dramatically, peaking at 85% in July. This heightened moisture persists into the early fall, tapering off slightly to 80% by October and November. As the year wraps up in December, humidity drops to 72%, marking a gradual return to the more comfortable levels seen at the start of the year.
In January, Santa Ana experiences a high UV Index of 12, placing it in the extreme exposure category, meaning that just 10 minutes of sun can lead to skin damage. This trend of extreme UV levels continues into February, with a slightly higher index of 13, before peaking in March and April at 15. As the year progresses towards May and June, the UV Index remains incredibly high at 14, emphasizing the need for diligent sun protection. Even in months with lower UV scores, such as November with 12 and December dropping to 10, the exposure remains notably intense. Given the consistent patterns of extreme UV radiation, residents and visitors should be cautious and well-prepared for sun exposure year-round. For more detailed information on safe sun practices, visit Santa Ana UV Index.
UV Risk Categories
In January, Santa Ana basks in an impressive 249 hours of sunshine, setting a radiant tone for the year ahead. As the days lengthen, February and March shine even brighter, with sunshine peaking at 296 and 329 hours, respectively. This golden streak begins to wane slightly in April at 300 hours, but the warmth persists through to May, where the sun still graces the area with 235 hours. The later months, however, see a gradual dip in sunshine, with July and August particularly experiencing lower totals around 209 and 213 hours. Yet, the sun returns to cheer in the latter part of the year, with November bathing the landscape in 229 hours and December closing out the year splendidly with 291 hours of sunlight. This fluctuation highlights a vibrant pattern of sunshine that both locals and visitors can revel in throughout the year.
January in Santa Ana, Costa Rica, boasts a 52% chance of sunny weather, making it one of the brighter months of the year. This promising start to the year contrasts sharply with the overcast conditions that follow, particularly in the wetter months from April to August, where sunshine drops to as low as 6% in August. As the months progress, outdoor enthusiasts can enjoy relatively sunny days in January and December, with both months presenting favorable conditions, while the middle of the year features a significant drop in sunshine. February and March also show a gradual decline in sunlit days, highlighting a trend toward increasing cloudiness as the rainy season approaches. Whether planning a getaway or a local adventure, January offers a delightful window of opportunity for sunshine seekers.
In Santa Ana, Costa Rica, January marks the beginning of a subtle but steady rhythm of daylight that persists throughout the year. With 11 hours of daylight, the month sets the stage for a gradual shift as February maintains the same light but hints at the longer days to come. As spring unfolds, daylight stretches to 12 hours from March through September, providing an abundance of sunlight perfect for exploring the vibrant local culture and nature. This extended illumination promotes an atmosphere of warmth and vitality, ideal for outdoor adventures. As the year progresses into October, November, and December, daylight recedes back to 11 hours, creating a natural ebb and flow that underscores the enchanting climate of Santa Ana, making it a year-round destination for sun seekers.
As you bask in the sun-drenched beauty of Santa Ana, Costa Rica, January gifts visitors with a gentle breeze, featuring an average wind speed of 2.4 m/s (5 mph). This refreshing start to the year hints at a trend of slightly stronger winds that accompany the cooler, dry season. As the months unfold, February and March maintain a similar breeze at 2.2 m/s and 2.3 m/s respectively, creating a delightful outdoor atmosphere. However, as the calendar moves toward April, the winds begin to mellow, dipping to 1.7 m/s (4 mph) and continuing their descent into the wet season. By mid-year, a noticeable calm prevails, with wind speeds dropping to around 1.2 m/s (3 mph) during the peak of the rainy season. Interestingly, a slight resurgence in winds can be felt later in the year, culminating in December, where they rise back to 2.1 m/s (5 mph), reminiscent of the invigorating January breeze. This cyclical dance of wind not only enhances the vibrant landscape but also invites outdoor enthusiasts to embrace the lush beauty of Santa Ana throughout the year.
Weather in Santa Ana varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Santa Ana, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather features a minimum temperature of 13°C (56°F) and an average of 20°C (68°F), reaching a maximum of 27°C (82°F). During this month, there is a total precipitation of 32 mm (1.3 in) spread over 6 days, with humidity remaining steady at 68%. In contrast, February shows slightly warmer conditions, with temperatures ranging from a minimum of 13°C (56°F) to an average of 20°C (69°F) and a maximum of 28°C (83°F). February experiences significantly less precipitation at 13 mm (0.5 in) over just 3 days, maintaining the same humidity level of 68%. For more details on the February weather, you can check Santa Ana weather in February.
In January, the weather in Santa Ana features a minimum temperature of 13°C (56°F) and an average of 20°C (68°F), with a maximum reaching 27°C (82°F). This month sees a total precipitation of 32 mm (1.3 in) over approximately 6 days, coupled with a humidity level of 68%. In contrast, March experiences slightly warmer conditions, with minimum temperatures around 14°C (57°F) and an average of 21°C (70°F), peaking at 28°C (83°F). March also enjoys less rainfall, totaling just 15 mm (0.6 in) over 4 days, and has a marginally lower humidity level of 66%. For more details about March weather, visit Santa Ana weather in March.
In comparing the weather between January and April, we notice several key differences and similarities. January typically experiences a mild climate with minimum temperatures around 13°C (56°F), an average of 20°C (68°F), and a maximum of 27°C (82°F), accompanied by relatively low precipitation of 32 mm (1.3 in) over 6 days. In contrast, April sees slightly warmer temperatures, with minimums at 15°C (58°F), averages at 21°C (70°F), and maximums reaching 29°C (85°F). However, April is also characterized by increased rainfall, totaling 79 mm (3.1 in), spread across 16 days. Despite this, humidity remains fairly consistent, hovering around 68% in January and slightly lower at 67% in April. For more detailed information about the weather in April, you can visit Santa Ana weather in April.
In January, the weather in Santa Ana features a comfortable range of temperatures, with a minimum of 13°C (56°F), an average of 20°C (68°F), and a maximum of 27°C (82°F). The month experiences relatively low precipitation, totaling 32 mm (1.3 in) over just 6 days, with humidity sitting at 68%. In contrast, May presents a warmer climate with slightly higher temperatures—ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F) and an average of 21°C (70°F). However, this month is characterized by significant rainfall, accumulating 391 mm (15.4 in) across 27 days, while humidity remains similar at 69%. For a detailed look at May weather patterns, visit Santa Ana weather in May.
In January, the weather features a comfortable temperature range with a minimum of 13°C (56°F), an average of 20°C (68°F), and a maximum of 27°C (82°F). Precipitation is relatively low at 32 mm (1.3 in) over six days, accompanied by a humidity level of 68%. In contrast, June experiences slightly warmer temperatures, with a minimum of 16°C (60°F), an average of 21°C (70°F), and a similar maximum of 27°C (81°F). However, June is significantly wetter, with total precipitation reaching 351 mm (13.8 in) across 27 days, along with higher humidity at 84%. For a detailed overview of the weather conditions during this month, check out Santa Ana weather in June.
When comparing the weather in January and July, a few key differences stand out. January presents a relatively mild climate with minimum temperatures around 13°C (56°F) and average highs reaching 27°C (82°F), accompanied by moderate humidity levels at 68%. In contrast, July experiences slightly warmer minimums of 16°C (61°F) and an average temperature of 21°C (69°F), but it is notably wetter, with precipitation soaring to 233 mm (9.2 in) over 26 rainy days. This increase in rainfall also contributes to higher humidity levels, reaching 85%. For a detailed look at July's weather, visit Santa Ana weather in July.
In January, Santa Ana experiences mild weather with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), averaging around 20°C (68°F). The month sees relatively low precipitation, with only 32 mm (1.3 in) falling over about 6 days, and humidity levels at 68%. In contrast, August brings slightly warmer temperatures, with minimums of 16°C (60°F) and maximums reaching 28°C (82°F), while maintaining a similar average of 20°C (69°F). However, August is significantly wetter, receiving 331 mm (13.0 in) of rainfall over approximately 26 days, along with increased humidity at 82%. For more details about the weather in August, visit Santa Ana weather in August.
In comparing the weather between January and September, we see notable differences in both temperature and precipitation. January experiences milder conditions with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (82°F) and a low precipitation of just 32 mm (1.3 in) over 6 days. In contrast, September brings slightly warmer nights with a minimum temperature of 15°C (60°F) and similar daytime highs, but the month is significantly wetter, accumulating 436 mm (17.2 in) of rain over 28 days, and higher humidity at 81%. For a comprehensive overview of what to expect during September, you can refer to Santa Ana weather in September.
When comparing the weather in January and October, we see some notable differences. January enjoys milder conditions with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), and average temperatures steady at 20°C (68°F). Precipitation is relatively low at 32 mm (1.3 in) over just 6 days, accompanied by a humidity level of 68%.
In contrast, October exhibits warmer minimum temperatures of 15°C (60°F) while still averaging 20°C (68°F) and peaking at 27°C (80°F). However, it experiences a dramatic increase in precipitation, with a staggering 570 mm (22.4 in) spread over 29 days, resulting in increased humidity levels of 80%. For a more detailed look at weather patterns during this month, check Santa Ana weather in October.
In January, the weather is generally warmer with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), while November features slightly cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 26°C (79°F). Both months experience similar average temperatures of 20°C (68°F); however, January is significantly drier, receiving only 32 mm (1.3 in) of precipitation over 6 days, compared to November's 209 mm (8.2 in) over 19 days. Additionally, humidity levels are higher in November at 80%, compared to January's 68%. For more details on the weather trends, check out Santa Ana weather in November.
In comparing the weather between January and December, both months share a similar average temperature of 20°C (68°F), but January experiences slightly cooler minimum and maximum temperatures, ranging from 13°C (56°F) to 27°C (82°F), compared to December's 15°C (58°F) to 26°C (80°F). Additionally, January tends to have less precipitation, with only 32 mm (1.3 in) over about six days, while December sees more rainfall at 63 mm (2.5 in) across eleven days. Humidity levels are also slightly lower in January at 68%, compared to December’s 72%. For more detailed insights, you can check Santa Ana weather in December.
January in Santa Ana offers a refreshing departure from the more humid months that follow. With pleasant daytime temperatures averaging around 20°C (68°F) and a gentle breeze, this month presents an ideal setting for outdoor adventures. Although occasional rain may interrupt the sunshine, the total precipitation remains low, ensuring plenty of sunny spells to enjoy. With 68% humidity, January strikes a comfortable balance, making it a fantastic time to explore the beauty of the region. For more insights into the climate of Santa Ana, visit Santa Ana Climate.