May Weather in Tilaran, Costa Rica

Last updated: August 21, 2025

May in Tilaran, Costa Rica brings a warm and lush atmosphere, with maximum temperatures reaching 33°C (91°F) and average temperatures settling at a comfortable 25°C (77°F). The minimum temperature dips to 20°C (69°F) during the cooler nights, creating perfect conditions for exploring the vibrant surroundings. However, this month also witnesses significant rainfall, with a cumulative precipitation amount of 264 mm (10.4 in) spread over 25 days, contributing to the lush greenery of the local landscape. With an average humidity of 63%, May in Tilaran showcases the enchanting beauty and richness of Costa Rica's tropical climate, inviting visitors to experience its natural wonders amidst the refreshing rains.

May Temperature in Tilaran

In May, Tilaran, Costa Rica, welcomes the warmest temperatures of the year, maintaining a delightful average of 25°C (77°F). With nightly lows around 20°C (69°F) and daytime highs reaching up to 33°C (91°F), the weather is strikingly pleasant, though there’s a noticeable increase in humidity as the region transitions into the rainy season. This pattern is a consistent trend from April to June, where temperatures stay relatively stable, with nighttime lows hovering around 20°C and daily highs peaking in the low to mid-30s. Travelers can expect a lush landscape to emerge as the month progresses, making May an ideal time for outdoor adventures amid the scenic beauty of Tilaran.

May Weather in Tilaran: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Tilaran, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tilaran, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec737575777776767675757574
Data source: Temperature data for Tilaran generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Tilaran

May marks a dramatic shift in the precipitation patterns of Tilaran, Costa Rica, as the region basks in the lush embrace of the rainy season. With 264 mm (10.4 in) of rainfall recorded over the month, May stands out as a pivotal time, experiencing 25 days of rain. This surge in water is a noteworthy increase compared to April's 54 mm (2.1 in), setting the stage for the verdant landscapes that characterize this alluring destination. As the rains continue into June, with an even higher 290 mm (11.4 in) expected, it's clear that May is not just another month but a vital period that nurtures the vibrant ecosystems and rich biodiversity in the area. The daily rhythm of rain invites the thriving flora and fauna to flourish, highlighting the essence of Tilaran's natural beauty during this season.

May Precipitation Trends in Tilaran

The chart displays monthly precipitation patterns in Tilaran, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Tilaran, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec27895426429015927526538515957
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Tilaran

In May, Tilaran, Costa Rica, experiences a consistent humidity level of 63%, maintaining the trend seen over the previous months of April and March. This steady humidity hints at a transitional phase before the arrival of the more humid months ahead. As the dry season gives way to the rainy season, humidity begins to rise significantly, with a sharp increase to 74% in June and peaking at an exuberant 85% in July. This gradual buildup creates a lush, vibrant landscape in Tilaran, ideal for those eager to enjoy the region's natural beauty as it flourishes in response to the increasing moisture.

May Average Humidity in Tilaran

This chart illustrates the average monthly humidity levels in Tilaran, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Tilaran is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%64%63%63%63%74%85%82%80%79%79%70%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Tilaran

May in Tilaran, Costa Rica, continues the trend of extreme UV exposure, with a steady UV Index of 14—matching the peak levels seen in April and preceding months. With a dangerously low burn time of just 10 minutes, this month exemplifies the urgent need for sun protection. As the transition from the dry season to the wetter months begins, sustained high UV readings remain a constant reminder to travelers and locals alike to take precautions against harmful sun exposure. For more detailed information, you can explore the Tilaran UV Index.

Maximum UV Index Levels in Tilaran for May

The chart shows the monthly maximum UV Index (UVI) for Tilaran in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Tilaran typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141414141313131110
Data source: Tilaran May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Tilaran

May in Tilaran, Costa Rica, offers a delightful mix of sun and cloud, boasting 267 hours of sunshine. Although this marks a slight dip from the previous month, April's 319 hours, May maintains a competitive brightness compared to the surrounding months. As the rains approach, sunshine begins to wane, but it still outshines the overcast days typical of the upcoming months. This trend signifies a transitional period, where the lush surroundings of Tilaran thrive under these radiant sunbeams, setting the stage for the vibrant greenery that follows the rain. As summer wanes and the rainy season begins, May serves as a perfect reminder of the sun’s enduring presence in this picturesque region.

Monthly Sunshine Duration in Tilaran: May Highlighted

The May sunshine duration represents the total number of hours Tilaran experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec257h299h333h319h267h268h297h265h257h236h286h316h
Data source: Tilaran May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tilaran During May

In Tilaran, Costa Rica, the likelihood of sunny weather in May sees a notable dip, with only a 16% chance of sunshine compared to April's 23%. This decline marks a transition into the wetter months, as the region experiences increasing cloud cover and rainfall leading into the heart of the rainy season. It's interesting to note that this pattern continues into June and July, where the chances of sun drop even further to 14% and 15%, respectively. Therefore, May serves as a turning point, signaling the onset of more frequent rain, making it less likely for sun-seekers to bask in brighter days during this time.

Percentage of Sunny Days in May in Tilaran

The chart illustrates the percentage of sunny days in Tilaran throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Tilaran experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%49%48%23%17%14%16%7%11%14%22%44%
Data source: Tilaran May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tilaran in May

In Tilaran, Costa Rica, the daylight duration presents a fascinating pattern throughout the year. From January to February, residents enjoy 11 hours of daylight, which remains constant until March, when it shifts to 12 hours. This extended daylight persists into the vibrant months of April and May, creating a perfect atmosphere for exploration and outdoor activities. Following May, the 12-hour daylight continues through June, July, and August, fostering a sense of eternal summer. However, as the year transitions, daylight gradually decreases, dipping back to 11 hours in October and returning to the shorter durations through the end of the year. This unique cycle highlights Tilaran's tropical charm, offering a blend of consistent light and seasonal changes that enrich the local experience year-round.

Average Daylight Hours in Tilaran for May

The chart illustrates the variation in daylight duration in Tilaran throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 34m11h 47m12h 3m12h 21m12h 35m12h 42m12h 38m12h 26m12h 9m11h 52m11h 37m11h 30m
Data source: Tilaran daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Tilaran

In Tilaran, Costa Rica, the month of May marks a gentle lull in the winds, with an average speed of just 2.8 m/s (6 mph). Leading up to this month, the winds gradually picked up momentum from January through March, peaking at 4.5 m/s (10 mph). However, starting in April, there's a noticeable shift towards calmer breezes, as wind speeds dip significantly. This trend continues through June and into the summer months, where the winds settle at their lowest, reaching 1.6 m/s (4 mph) by August and September. Interestingly, as the year draws to a close, wind speeds rebound, with November and December bringing more spirited gusts back to the region. This cyclical pattern showcases Tilaran's dynamic climate and invites visitors to enjoy the tranquility of May before the winds awaken once more.

Average May Wind Speed in Tilaran

The chart displays monthly wind speed patterns in Tilaran, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.24.53.02.8 m/s1.82.61.61.61.42.93.7
Data source: Tilaran May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Tilaran Compares to Other Months

Weather in Tilaran varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Tilaran, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in May and January, May showcases significantly warmer temperatures, with a minimum of 20°C (69°F), an average of 25°C (77°F), and a maximum reaching 33°C (91°F). In contrast, January tends to be milder, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 30°C (86°F) and an average of 23°C (74°F). Additionally, May experiences considerably more rainfall, totaling 264 mm (10.4 in) over 25 days, compared to January's lighter precipitation of 27 mm (1.1 in) over just 6 days. Both months have similar humidity levels, with humidity at 63% in May and slightly higher at 66% in January. For more specific insights, you can refer to Tilaran weather in January.

When comparing the weather in May and February, we notice some notable differences. In May, the temperatures range from a minimum of 20°C (69°F) to a maximum of 33°C (91°F), with an average temperature of 25°C (77°F). This month experiences significant precipitation, averaging 264 mm (10.4 in) over 25 days, leading to higher humidity levels at 63%. In contrast, February offers slightly milder temperatures, with a minimum of 18°C (64°F) and also reaching up to 33°C (91°F) at its peak, while maintaining an average temperature of 24°C (75°F). Additionally, February sees minimal rainfall, with only 8 mm (0.3 in) of precipitation occurring over just 1 day, resulting in only a marginally higher humidity level of 64%. For more details, check out Tilaran weather in February.

In comparing the weather between March and May, we observe notable differences in temperature and precipitation patterns. March typically experiences slightly cooler temperatures, with minimums around 18°C (64°F) and maximums reaching 32°C (90°F), while May’s temperatures range from a minimum of 20°C (69°F) to a maximum of 33°C (91°F). Additionally, May sees a significant increase in precipitation, with 264 mm (10.4 in) falling over 25 days compared to the mere 9 mm (0.4 in) over just 2 days in March. This results in both months sharing a similar humidity level of 63%, but the greater rainfall in May makes for a much wetter month overall. For more detailed insights about March weather, you can refer to this link: Tilaran weather in March.

When comparing the weather in May and April, we see some distinct differences. Both months feature a similar average temperature of 25°C (77°F) and maximum temperatures that peak at around 33°C (91°F for May and 92°F for April), but May tends to be warmer, with a minimum temperature of 20°C (69°F) compared to April's 18°C (65°F). Precipitation levels are significantly higher in May, with 264 mm (10.4 in) recorded over 25 days, in stark contrast to April's 54 mm (2.1 in) over just 11 days. Both months maintain a relative humidity of 63%, but May's increased rainfall creates a much wetter atmosphere. For those interested in more details about April's conditions specifically, you can visit Tilaran weather in April.

May and June weather patterns show some similarities as well as notable differences. Both months have a minimum temperature of around 20°C (69°F) and an average temperature close to 25°C (77°F), but June has a slightly lower maximum temperature of 31°C (88°F) compared to May's 33°C (91°F). Precipitation increases from 264 mm (10.4 in) in May to 290 mm (11.4 in) in June, with June experiencing rain on 28 days compared to May's 25 days. Additionally, humidity rises from 63% in May to 74% in June, making June feel more humid overall. For a more detailed look at June weather in Tilaran, visit Tilaran weather in June.

In comparing the weather between May and July, we see some notable differences. May experiences slightly warmer temperatures, with an average of 25°C (77°F) and maximum highs reaching up to 33°C (91°F). In contrast, July’s temperatures are a bit cooler, with an average of 24°C (76°F) and a maximum of 31°C (88°F). Precipitation levels in May are significantly higher, with 264 mm (10.4 in) of rain falling over 25 days, while July sees less rainfall at 159 mm (6.3 in), although it also has the same number of rainy days. Furthermore, July is notably more humid, with a humidity level of 85%, compared to May's 63%. For more details on July weather in Tilaran, you can check this link: Tilaran weather in July.

In May, temperatures typically range from a minimum of 20°C (69°F) to a maximum of 33°C (91°F), with an average of 25°C (77°F). The month experiences about 264 mm (10.4 in) of precipitation over 25 days, resulting in a humidity level of 63%. In contrast, August sees slightly cooler temperatures, with an average of 24°C (76°F), and a maximum of 32°C (90°F). However, it is generally wetter, with 275 mm (10.8 in) of rain across 26 days, leading to a higher humidity of 82%. This increase in moisture during August means that while temperatures are cooler, the air feels more humid and sticky. For more details on August weather, visit Tilaran weather in August.

May and September both feature warm temperatures, with minimums around 20°C (69°F) and maximums hovering near 33°C (91°F) in May and 32°C (89°F) in September. However, May has a slightly higher average temperature of 25°C (77°F) compared to September’s average of 24°C (76°F). Both months experience significant precipitation, with May receiving about 264 mm (10.4 in) over 25 days and September experiencing a similar total of 265 mm (10.4 in) over 29 days. Notably, September tends to be more humid, with humidity levels rising to 80%, compared to May's 63%. For more detailed information, check out Tilaran weather in September.

May and October share similar minimum temperatures, both hovering around 20°C (68°F to 69°F), but October tends to be slightly cooler on average with temperatures peaking at around 30°C (87°F) compared to May's 33°C (91°F). However, October experiences significantly higher precipitation, with 385 mm (15.2 in) over 29 days, compared to May's 264 mm (10.4 in) over 25 days. This increased rainfall contributes to higher humidity levels in October, reaching 79%, while May's humidity is at 63%. For more detailed insights, you can explore Tilaran weather in October.

May and November both feature warm temperatures, but there are notable differences in their weather patterns. In May, the minimum temperature averages around 20°C (69°F) with a peak of 33°C (91°F), while November's temperatures are slightly cooler, ranging from a minimum of 19°C (67°F) to a maximum of 30°C (86°F). May experiences higher precipitation, with approximately 264 mm (10.4 in) spread across 25 days, compared to November's 159 mm (6.2 in) over 23 days. Additionally, November has a higher humidity level at 79%, while May maintains a more moderate humidity of 63%. For more detailed insights into November's weather, you can check Tilaran weather in November.

May and December present contrasting weather patterns in Tilaran. In May, the temperatures range from a minimum of 20°C (69°F) to a maximum of 33°C (91°F), with an average of 25°C (77°F). It experiences significant precipitation, totaling 264 mm (10.4 in) over 25 days, contributing to a humidity level of 63%. In contrast, December offers slightly cooler temperatures, with a minimum of 18°C (65°F) and a maximum of 30°C (86°F), averaging at 23°C (74°F). The rain is much lighter, amounting to only 57 mm (2.2 in) across 14 days, but the humidity remains relatively high at 70%. For more detailed insights, check out Tilaran weather in December.

Compare Tilaran's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Tilaran

In May, Tilaran experiences a striking transition as it dials up the humidity and welcoming rains, setting it apart from the drier months of the year. With average temperatures hovering around a comfortable 25°C (77°F), the warmth is tempered by the lush greenery brought on by the 264 mm of rainfall over 25 days, creating a vibrant landscape. While the maximum temperatures can peak at 33°C (91°F), the frequent afternoon showers serve to cool things down, making this month feel more refreshing than the sweltering peak of the dry season. This blend of warm days and frequent rain not only enhances the natural beauty but also signals the start of the region's lush, green season. For more details on Tilaran's unique climate, check out Tilaran Climate.