Last updated: August 21, 2025
May in Zarcero, Costa Rica is characterized by a warm and humid climate, with maximum temperatures reaching 29°C (85°F) and an average of 21°C (71°F). Visitors can expect comfortable evenings, with minimum temperatures around 16°C (61°F). This month marks the height of the rainy season, bringing an impressive 306 mm (12.0 in) of precipitation over approximately 29 days. Humidity levels hover around 70%, creating a lush, vibrant environment perfect for exploring the region’s stunning landscapes. Whether you're enjoying the cool breezes or the refreshing rain, May offers a unique experience in this enchanting mountain town.
In May, Zarcero, Costa Rica experiences a delightful transition into the wet season, with temperatures that reflect its mild and pleasing climate. The month boasts a minimum temperature of 16°C (61°F), an average of 21°C (71°F), and a maximum reaching 29°C (85°F). This pattern shows a noticeable warmth compared to the cooler months preceding it, particularly April, while maintaining a consistent daily average that hovers around the comfortable 21°C mark. The trends indicate that while May remains warm, it is often accompanied by the lush greenery that comes from increasing rainfall, making it an enchanting time to explore this charming mountain town. Overall, visitors can expect pleasant temperatures and the vibrant beauty of nature awakening after the dry season.
May is a remarkable month for precipitation in Zarcero, Costa Rica, as it experiences a dramatic surge, receiving 306 mm (12.0 inches) of rain over 29 days. This significant rainfall marks a peak in the region's wet season, where the cumulative moisture sets the stage for lush greenery and vibrant landscapes. Following April's rainfall of 92 mm (3.6 inches), May sees more than three times that amount, illustrating the transition into the heart of the rainy season. The consistency of rainfall not only enhances the area's natural beauty but also supports its agricultural practices. As the month progresses, the abundant precipitation lays the foundation for the months ahead, where rain continues to dominate, with June also witnessing substantial totals of 268 mm (10.6 inches).
In May, Zarcero, Costa Rica, experiences a humidity level of 70%, maintaining a comfortable balance in the lush, mountainous landscape. As the region transitions from the drier months of January through April, where humidity hovers around 68% to 71%, May presents a subtle uptick, hinting at the forthcoming rainy season. This gentle rise in moisture continues into June, where humidity spikes to 81%, marking the onset of more pronounced wet conditions. The trend is clear: as the year progresses into the heart of the rainy season, humidity levels escalate, culminating in the peak in July at 88%. Therefore, May serves as a pivotal bridge, offering a blend of pleasant weather while signaling the lush, green transformations that lie ahead.
In May, Zarcero, Costa Rica experiences a consistent UV Index of 14, categorizing it as having an extreme level of sun exposure, with a burn time of just 10 minutes. This reflects a trend seen from January to April, where the UV Index climbs steadily, peaking at 15 in April before slightly tapering off. Notably, the UV Index remains elevated through June and July, signaling that outdoor enthusiasts should remain vigilant against overexposure. As the dry season transitions into the rainy season, it’s wise to stay informed and plan accordingly. For more details, check out the Zarcero UV Index.
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In Zarcero, Costa Rica, May brings a delightful blend of sunshine, with approximately 234 hours of radiant daylight. While slightly less than the sun-drenched months of March and April, which boast a peak of 320 and 294 hours respectively, May maintains a luminous atmosphere that invites both adventure and relaxation. As the rainy season approaches in June, where sunshine dips to 219 hours, May serves as a gentle transition, encouraging outdoor exploration amidst the verdant landscapes. This trend showcases Zarcero's enchanting weather, revealing a captivating interplay between ample sun and the lush greenery that characterizes the region.
In Zarcero, Costa Rica, the likelihood of sunny weather takes a noticeable dip in May, with only a 9% chance of sunshine. This marks a significant decline compared to the preceding months, especially April, which enjoys a more favorable 14% sunny probability. Following May, the trend of cloudy days continues into June with just an 8% chance of clear skies. As the region transitions from the dry season to the rainy months, it's clear that May stands out as part of a gloomier period in Zarcero's climate, a sharp contrast to the more promising sunshine found in January, February, and December, each boasting a 32-33% likelihood of sunny days.
In Zarcero, Costa Rica, daylight duration exhibits a consistent rhythm throughout the year, captivating both residents and visitors alike. Beginning in January and February, the days are a stable 11 hours long, setting a gentle pace for the year. As March arrives, daylight expands to 12 hours, a trend that continues through the subsequent months of April, May, June, July, August, and September. This extended daylight allows for plenty of time to explore the lush landscapes and vibrant culture. As the year wanes, the daylight dips back to 11 hours in October, November, and December, bringing a serene close to the annual cycle. This gradual ebb and flow of daylight not only reflects the region's unique climate but also enhances its enchanting charm throughout the seasons.
In May, Zarcero, Costa Rica, experiences a gentle embrace of soft winds, with an average speed of 2.0 m/s (4 mph), mirroring the tranquil atmosphere that characterizes this lush region. As the year unfolds, one can observe a gradual decline in wind speed from April's 2.0 m/s to May's still, pleasant breezes. This marks a notable shift from the crisper, breezier months earlier in the year, particularly January and March, which both boast higher averages of 2.8 m/s. With each passing month heading into the heart of the rainy season, the air begins to calm, making May a serene time to savor the vibrant landscapes and gently swaying flora that define Zarcero. As summer approaches, the wind tends to whisper rather than roar, inviting visitors to immerse themselves in the lush beauty of this Costa Rican gem.
Weather in Zarcero varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Zarcero, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in May and January, it's clear that May tends to be warmer and more humid. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 29°C (85°F), with an average temperature of 21°C (71°F). This month also sees substantial rainfall, with a total precipitation of 306 mm (12.0 in) occurring over 29 days. In contrast, January presents milder temperatures, with a minimum of 13°C (55°F) and a maximum of 27°C (80°F), leading to an average of 19°C (67°F). Additionally, January experiences significantly less rain, with only 67 mm (2.7 in) of precipitation spread over 10 days. The humidity remains relatively high in both months, with January at 71% and May at 70%. For more details on January weather, check out Zarcero weather in January.
When comparing the weather in May and February, one can observe significant differences in temperature and precipitation. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 29°C (85°F), with an average of 21°C (71°F). This month is characterized by high precipitation, totaling 306 mm (12.0 in) over 29 days, which creates a humid environment with a consistent humidity level of 70%. In contrast, February offers slightly cooler temperatures, with a minimum of 12°C (55°F) and a maximum of 28°C (83°F), averaging at 20°C (68°F). Additionally, February experiences much less rainfall, with only 28 mm (1.1 in) over 9 days, and maintains the same humidity level of 70%. For more details on February weather, visit Zarcero weather in February.
In comparing the weather of May and March, we notice several notable differences. May experiences a warmer temperature range with minimums around 16°C (61°F) and maximums reaching 29°C (85°F), while March has slightly cooler temperatures with minimums of 13°C (56°F) and maximums peaking at 28°C (82°F). Additionally, May is significantly wetter, with a total precipitation of 306 mm (12.0 in) spread over 29 days, compared to March's much drier 38 mm (1.5 in) over just 10 days. The humidity levels are relatively similar, with May at 70% and March at 68%. For a detailed look at March weather, you can visit Zarcero weather in March.
When comparing the weather in May and April, it's evident that both months share similar average temperatures, with minimums around 15-16°C (59-61°F) and maximums peaking at 29°C (85°F). However, May experiences significantly more precipitation, with a total of 306 mm (12.0 in) over 29 days, compared to April's 92 mm (3.6 in) across 19 days. Additionally, the humidity in both months is quite close, with May slightly higher at 70% compared to April's 69%. For more detailed information, you can check out Zarcero weather in April.
May and June have similar average temperatures, with May seeing a maximum of 29°C (85°F) and June slightly cooler at 28°C (82°F). Both months have a minimum temperature of 16°C (61°F), making the early summer nights relatively consistent. However, May experiences higher precipitation levels at 306 mm (12.0 in) over 29 days, compared to June's 268 mm (10.6 in) over 28 days. Additionally, humidity rises in June to 81%, up from 70% in May. For more detailed insights, you can check Zarcero weather in June.
In comparing the weather between May and July, we observe some notable differences. May tends to have a slightly warmer temperature range, with a minimum of 16°C and a maximum of 29°C, while July's temperatures are a bit cooler, with a minimum of 17°C and a maximum of 27°C. Precipitation levels are also higher in May, totaling 306 mm over 29 days, compared to July's 241 mm over 28 days. However, July experiences higher humidity, reaching up to 88%, in contrast to May's 70%. For more detailed insights, you can check Zarcero weather in July.
In comparing the weather between May and August, both months experience similar temperature ranges, with a minimum of around 16°C (61°F) and a maximum near 29°C (85°F). However, August tends to be slightly cooler on average, with a daytime peak of 29°C (84°F) compared to May's maximum of 29°C. Precipitation levels are comparable, but May sees a higher total of 306 mm (12.0 in) over the same number of days, whereas August records 273 mm (10.8 in), indicating that while both months are wet, May is notably wetter. Additionally, humidity levels are higher in August at 85%, compared to May's 70%, suggesting that August feels more humid and sticky. For more details on the weather in August, you can visit Zarcero weather in August.
May and September share a similar temperature range, with both months experiencing minimum temperatures around 16°C (61°F) and average temperatures hovering around 21°C (70°F). However, September tends to be slightly cooler, with a maximum temperature of 28°C (83°F) compared to May's 29°C (85°F). Precipitation levels are quite comparable, with May receiving 306 mm (12.0 in) of rain and September slightly less at 288 mm (11.3 in), both spread across 29 days. Notably, September has higher humidity at 84%, compared to May's 70%. For a closer look at September weather, you can check Zarcero weather in September.
May and October exhibit similar minimum average temperatures, both starting at a comfortable 16°C (61°F) and peaking around 21°C (71°F) during the day. However, October tends to be slightly cooler, with a maximum temperature of 27°C (81°F) compared to May's warmer highs of 29°C (85°F). While May experiences a substantial amount of rainfall totaling 306 mm (12.0 in) over 29 days, October surpasses this with 434 mm (17.1 in) spread across 30 days, indicating a wetter climate. Additionally, October's humidity rises to 82%, compared to May’s 70%, making it feel more humid and damp during the fall month. For more specific details about October weather in Zarcero, you can visit Zarcero weather in October.
May and November offer distinct weather conditions, reflecting the transition from spring to late autumn. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 29°C (85°F), with an average of 21°C (71°F). This month is characterized by a higher precipitation level of 306 mm (12.0 in) over 29 rainy days, contributing to a humidity level of 70%. In contrast, November sees slightly cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 26°C (79°F), averaging around 20°C (69°F). The total precipitation in November is lower at 228 mm (9.0 in) across 26 days, and the humidity is slightly higher at 81%. For more details about November weather, you can refer to Zarcero weather in November.
May and December in Zarcero present distinct weather contrasts. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 29°C (85°F), with an average of 21°C (71°F), accompanied by significant rainfall totaling 306 mm (12.0 in) spread over 29 days. The humidity hovers around 70%, creating a lush, green landscape. In contrast, December is slightly cooler with temperatures from 14°C (58°F) to 26°C (78°F) and an average of 20°C (68°F). This month sees much less rainfall, with just 121 mm (4.7 in) over 17 days, and humidity rises to 74%, giving December a fresher feel. For more details, you can check Zarcero weather in December.
As May unfolds in Zarcero, it sets itself apart with a delightful mix of warmth and moisture. With average temperatures hovering around a pleasant 21°C, this month invites visitors to embrace the lush greenery brought forth by significant rainfall—nearly 306 mm over 29 days. This heightened humidity, often at 70%, creates a vibrant atmosphere uniquely characteristic of the rainy season, making May a time when nature flourishes and the landscape transforms. For a deeper dive into the weather patterns throughout the year, explore Zarcero Climate.