Last updated: August 21, 2025
In April, Santa Ana, Costa Rica experiences a delightful blend of warm temperatures and refreshing rainfall. With a maximum temperature reaching 29°C (85°F) and an average of 21°C (70°F), the climate remains pleasant for outdoor activities. However, be prepared for occasional rain, as the month sees approximately 79 mm (3.1 in) of precipitation spread over 16 days, contributing to a humidity level of 67%. This combination creates lush landscapes and a vibrant atmosphere, making April a captivating time to explore this scenic region.
In April, Santa Ana, Costa Rica, welcomes a delightful shift in temperatures as the dry season draws to a close. With minimum temperatures rising to 15°C (58°F) and maximums reaching up to 29°C (85°F), the weather is pleasantly warm, making it ideal for exploring the lush surroundings. The average temperature holds steady at 21°C (70°F), similar to previous months, yet the slightly warmer highs hint at the approach of the rainy season. As the month progresses, residents and visitors alike can enjoy the sunny days while the evenings remain refreshingly cool, creating the perfect conditions for outdoor adventures and relaxed evenings under the stars.
April marks a significant shift in precipitation patterns for Santa Ana, Costa Rica, as the region transitions into its lush green season. With 79 mm (3.1 in) of rain over 16 days, April presents a noticeable increase compared to the preceding months of January through March, which recorded much lower totals. This surge sets the stage for the heavy rainfall that characterizes the upcoming months, such as May and June, where precipitation skyrockets to 391 mm (15.4 in) and 351 mm (13.8 in), respectively. The increased frequency of rainy days in April not only nourishes the vibrant local flora but also signals the advent of the rainy season, delighting nature enthusiasts and farmers alike with the promise of a verdant landscape ahead.
April in Santa Ana, Costa Rica, sees a slight dip in humidity at 67%, making it one of the more comfortable months compared to the surrounding wetter seasons. Following a pattern established in the earlier months, April's humidity is relatively stable, only slightly lower than the preceding March at 66%. This mildness serves as a transition before the onset of the hotter and more humid months ahead, particularly as humidity levels rise in May to 69%. As the year progresses towards the rainy season, the air feels increasingly dense and tropical, with humidity peaking in June and July, illustrating a clear trend of increasing moisture as the lush landscape comes to life.
In April, Santa Ana, Costa Rica, experiences a notably high UV Index of 15, categorizing it as extreme and signaling an urgent need for sun protection. This level matches the peak seen in March, which suggests that the region's intensity of sunlight remains consistently potent as the dry season advances. With a burn time of just 10 minutes, residents and visitors alike should prioritize safety by slathering on sunscreen, wearing protective clothing, and seeking shade during peak hours. Compared to neighbouring months, April stands out for its robust UV levels, indicating that this is a prime time for both outdoor activities and necessary precautions. For more detailed information on the UV Index throughout the year, check out Santa Ana UV Index.
UV Risk Categories
April in Santa Ana, Costa Rica, shines brightly with 300 hours of sunshine, making it one of the sunniest months of the year. This follows a steady increase from 249 hours in January to a peak of 329 hours in March, highlighting a clear upward trend as the dry season progresses. While April sees a slight dip in sunshine compared to the previous month, it remains a favorable time for enjoying outdoor activities. The month of May introduces a noticeable decrease to 235 hours, signaling the onset of the rainy season. Overall, the sunshine hours in April encapsulate the season's vibrant energy, while hinting at the dynamic weather patterns that shape the region throughout the year.
April marks a notable shift in sunny weather patterns in Santa Ana, Costa Rica, with the likelihood of sunny days plummeting to just 20%. This decline follows relatively brighter months like January and February, which enjoy 52% and 48% chances of sunshine, respectively. As the region transitions into the peak rainy season, April's diminishing sunlit days set the stage for the increasingly overcast and wet conditions that persist through May and June, where chances drop even further to 14%. Observing these trends, travelers and locals alike should prepare for a notable decrease in sunny weather as spring gives way to the lush green landscapes driven by the rain.
In April, Santa Ana, Costa Rica enjoys a delightful 12 hours of daylight, continuing the trend established in March and carrying into the following months. This period marks a transition into the wetter season, where the longer days provide ample opportunity for outdoor exploration and appreciation of the region's lush environment. Interestingly, the daylight duration remains consistent throughout the following months, from May through August, before gradually tapering off in the fall. Overall, April serves as a pivotal month, setting the stage for the vibrant and lively days that follow in this tropical paradise.
As April unfolds in Santa Ana, Costa Rica, the wind takes on a gentler demeanor, with an average speed of 1.7 m/s (4 mph). This marks a noticeable decline from the breezy months preceding it, as January through March showcase more robust winds around 2.2 to 2.4 m/s (5 mph). Following April, the winds continue to soften into May and June, dropping further to an average of 1.5 m/s (3 mph) and 1.2 m/s (3 mph), respectively. This trend suggests a transition into the calmer phase of the year, as the lush surroundings soak up the warmth before the more humid months set in. With the approach of November, the winds make a gradual comeback, reminding us of nature’s rhythm and the change of seasons in this beautiful region.
Weather in Santa Ana varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Santa Ana, focusing on differences in temperature, rainfall, humidity, and UV levels.
April generally offers warmer temperatures compared to January, with average highs reaching 29°C (85°F) versus January's 27°C (82°F). The minimum temperatures in April also tend to be slightly higher, starting at 15°C (58°F), compared to January's 13°C (56°F). April is significantly wetter, receiving 79 mm (3.1 in) of precipitation over 16 days, while January sees much less rain at 32 mm (1.3 in) across just 6 days. Humidity levels are quite similar, with January averaging 68% and April at 67%. For more detailed information, you can check Santa Ana weather in January.
When comparing the weather in April and February, both months exhibit mild temperatures, but April tends to be slightly warmer. In April, temperatures range from a minimum of 15°C (58°F) to a maximum of 29°C (85°F), with an average of 21°C (70°F), while February has a minimum of 13°C (56°F) and a similar maximum of 28°C (83°F), averaging 20°C (69°F).
However, April is noticeably wetter, receiving 79 mm (3.1 in) of rainfall over 16 days, compared to February's much drier conditions with just 13 mm (0.5 in) over 3 days. Humidity levels are quite similar across the two months, with April at 67% and February slightly higher at 68%. For a more detailed look at the weather in February, you can visit Santa Ana weather in February.
In comparing the weather of April to that of March, April experiences slightly warmer temperatures, with a minimum of 15°C (58°F) and a maximum of 29°C (85°F), while March has a minimum of 14°C (57°F) and a maximum of 28°C (83°F). Both months share the same average temperature of 21°C (70°F). However, April is notably wetter, with 79 mm (3.1 in) of precipitation over 16 days, contrasting sharply with March's much drier conditions, which see only 15 mm (0.6 in) of rain over 4 days. Humidity levels remain relatively similar, with April at 67% and March at 66%. For more detailed information about March weather in this region, visit Santa Ana weather in March.
April and May exhibit relatively similar average temperatures, with both months hovering around 21°C (70°F). However, April experiences a broader temperature range, with a minimum of 15°C (58°F) and a maximum of 29°C (85°F), while May has slightly higher minimum temperatures at 16°C (61°F) and a slightly lower maximum of 28°C (83°F). In contrast to April’s 79 mm (3.1 in) of precipitation over 16 days, May sees a significant increase in rainfall, with 391 mm (15.4 in) spread across 27 days, contributing to higher humidity levels of 69% compared to April's 67%. For more detailed weather information, you can check Santa Ana weather in May.
In comparing the weather between April and June, we see some notable differences. April experiences slightly warmer temperatures with a minimum of 15°C (58°F) and a maximum of 29°C (85°F), while June has a minimum of 16°C (60°F) and a cooler maximum of 27°C (81°F). Both months have the same average temperature of 21°C (70°F). However, June is significantly wetter, receiving 351 mm (13.8 in) of precipitation over 27 days, compared to April's 79 mm (3.1 in) over 16 days. Additionally, humidity levels rise from 67% in April to 84% in June, contributing to a more humid climate. For more detailed insights, you can check out Santa Ana weather in June.
April and July showcase distinct weather patterns, with April featuring warmer maximum temperatures averaging 29°C (85°F), while July sees a slightly cooler peak at 27°C (81°F). Precipitation levels rise significantly in July, recording 233 mm (9.2 in) across 26 days of rain compared to April's 79 mm (3.1 in) over 16 days. Humidity is also higher in July at 85%, compared to April’s 67%, making for a more humid experience. For a more detailed look at weather specifics, check out Santa Ana weather in July.
April and August present distinct weather patterns. In April, temperatures range from a minimum of 15°C (58°F) to a maximum of 29°C (85°F), with an average of 21°C (70°F) and relative humidity at 67%. The month sees a moderate amount of precipitation, with about 79 mm (3.1 in) spread over 16 days. In contrast, August experiences slightly cooler temperatures, with a minimum of 16°C (60°F) and a maximum of 28°C (82°F), averaging 20°C (69°F). However, it is markedly wetter, with precipitation reaching 331 mm (13.0 in) over 26 days and a higher humidity level of 82%. For more details on the weather in August, you can visit Santa Ana weather in August.
April typically offers warmer temperatures, with average highs reaching 29°C (85°F) and a lower likelihood of rain, averaging 79 mm over 16 days. In contrast, September experiences cooler average temperatures, peaking at 27°C (80°F), but it brings significantly more rainfall, with a staggering 436 mm over 28 days and higher humidity at 81%. This makes September a much wetter month compared to April. For more detailed insights on September weather in Santa Ana, you can visit Santa Ana weather in September.
In comparing the weather of April and October, we find that both months feature similar minimum temperatures, around 15°C (58°F), but differ significantly in average and maximum temperatures. April typically sees an average of 21°C (70°F) and peaks at 29°C (85°F), making it warmer than October, which has an average of 20°C (68°F) and a maximum of 27°C (80°F). However, October is marked by much higher precipitation, totaling 570 mm (22.4 in) over 29 days compared to April's 79 mm (3.1 in) over 16 days, contributing to a higher humidity level of 80% versus April's 67%. For a closer look at October weather specifically, you can check Santa Ana weather in October.
April and November offer distinct weather patterns, reflecting the transition between seasons. In April, temperatures range from a minimum of 15°C (58°F) to a warm average of 21°C (70°F) and can reach a maximum of 29°C (85°F). The month sees around 79 mm (3.1 in) of precipitation over 16 days, with a humidity level averaging 67%. In contrast, November presents cooler temperatures with a minimum of 15°C (59°F), an average of 20°C (68°F), and a maximum of 26°C (79°F). However, it is significantly wetter, receiving 209 mm (8.2 in) of rain across 19 days and a higher humidity of 80%. For more specifics, you can check Santa Ana weather in November.
In April, temperatures are warmer, with averages around 21°C (70°F), reaching a maximum of 29°C (85°F), compared to December's cooler average of 20°C (68°F) and maximum of 26°C (80°F). April also sees more precipitation, totaling 79 mm (3.1 in) over 16 days, while December experiences less rain, with 63 mm (2.5 in) over 11 days. Additionally, humidity levels are slightly higher in December at 72%, compared to 67% in April. For more detailed information on December weather, check out Santa Ana weather in December.
As April unfolds in Santa Ana, the weather showcases a delightful transition, with warmer temperatures and increased humidity marking the start of the rainy season. Unlike the drier months preceding it, this month introduces a notable uptick in precipitation, with rain gracing the landscape on nearly half of the days, a contrast to the more arid conditions experienced earlier in the year. The combination of mild daytime highs and cooler nights creates a pleasant atmosphere that invites both locals and visitors to embrace outdoor activities before the heavier rains arrive. To dive deeper into the unique climate dynamics of this vibrant region, explore the details at Santa Ana Climate.