Last updated: August 27, 2025
In Calamba, Philippines, the weather in May is characterized by warm temperatures and high humidity, providing a distinct tropical experience. The maximum temperature can soar to 34°C (94°F), while the average hovers around 28°C (82°F), with a comfortable minimum of 24°C (75°F). However, May also brings significant precipitation with an impressive total of 180 mm (7.1 in) spread over 28 days, creating a lush and vibrant landscape. With an average humidity level of 84%, residents and visitors alike can expect a blend of warmth and moisture, typical of the Philippine monsoon season.
In Calamba, Philippines, May ushers in a notable shift in temperatures as the city transitions deeper into the warm season. With minimums rising to 24°C (75°F) and averages soaring to 28°C (82°F), the month embraces a warmer climate. The maximum temperatures peak around 34°C (94°F), reflecting a gradual increase from the previous months. This pattern highlights a steady climb in warmth as the year progresses, contributing to the humid atmosphere typical of Filipino summers. As the days grow longer and sunnier, May presents an inviting backdrop for outdoor activities, allowing residents and visitors alike to soak in the vibrant energy of Calamba’s tropical climate.
In Calamba, Philippines, May marks a significant transition within the rainy season, characterized by a noteworthy precipitation amount of 180 mm (7.1 in). As the month unfolds, the city experiences rain on an average of 28 days, making May one of the wettest times of the year. This uptick in rainfall follows a gradual decline from the drier months of January through April, establishing a pattern where precipitation rises sharply as summer gives way to the monsoon. June continues this trend with even higher rainfall, accentuating the shift in the weather cycle. Thus, May not only represents a high point in both precipitation levels and frequency of rainy days, but also sets the stage for the more intense downpours that follow in the coming months.
In May, Calamba, Philippines experiences a significant rise in humidity, reaching 84%, which reflects the onset of the rainy season. This peak in humidity marks a gradual increase from the 77% recorded in March and 78% in April. As temperatures warm, the air becomes richer in moisture, signaling a transition toward the more humid months ahead. Coming just before the June surge to 87%, May serves as a pivotal moment, where the lush landscapes start to thrive, preparing for the intense humidity of the summer months that follow. The overall trend indicates that as the year progresses, humidity levels in Calamba steadily climb, peaking during the later months, ultimately creating a tropical and vibrant atmosphere.
In May, Calamba, Philippines, maintains an extreme UV Index of 14, continuing the trend established over the preceding months. While April peaked at a UV Index of 17, May's reading aligns with several months of equally intense sun exposure, including February and June, which also hit 14. This consistency emphasizes the need for vigilant sun protection, as the burn time remains a brief 10 minutes across the board. As the region transitions from the hotter months into the late spring, residents and visitors alike should remain proactive in shielding themselves from harmful UV rays. For more detailed information, check out Calamba UV Index.
UV Risk Categories
May ushers in a delightful surge of sunshine in Calamba, Philippines, boasting 319 hours of radiant daylight. This month stands out as the peak of the year, overshadowing even April's impressive 310 hours. Following the gradual increase from January's 229 hours, sunshine steadily climbs, revealing a beautiful progression towards the summer months. Notably, the continuous ascent from February's 272 hours to March's 313 hours showcases a reassuring transition into brighter days. As we move into June, a slight decline to 287 hours is evident, hinting at the approaching rainy season, yet May's luminous warmth leaves a lasting impression as the sunniest month of the year.
In Calamba, Philippines, the likelihood of sunny weather in May stands at 21%, reflecting a slight decrease from the previous month of April at 24%. This shift follows the trend of increasing sun exposure from January through March, peaking at 34% before a gradual decline into the wet season. While May offers better chances of sunshine compared to the summer months ahead, such as June and July (with only 14% and 12%, respectively), it’s evident that May tends to bridge the gap between the lingering dry spells and the onset of the rainy season. Visitors and locals alike can still enjoy the pleasant weather, but they should be prepared for the variability that the approaching monsoon may bring.
In Calamba, Philippines, the daylight duration experiences a captivating rhythm throughout the year. Beginning with 11 hours in January and February, the days gradually stretch as spring approaches, with 12 hours being the standard from March through August. May, nestled comfortably among these months, enjoys the same generous 12-hour daylight as its neighboring months, inviting outdoor activities and vibrant experiences. As the year progresses into fall, daylight begins to wane again, dropping back to 11 hours in October and returning to its earlier state for the remainder of the year. This pattern reflects a gentle ebb and flow, offering a sense of continuity and connection to the changing seasons.
In Calamba, Philippines, May typically ushers in a gentle breeze with an average wind speed of 2.2 m/s (5 mph), marking a subtle dip from the previous months. This softening of the winds is reflective of the transition to the hotter, more humid summer season. As the year progresses, June sees the wind calm further to 1.4 m/s (3 mph), suggesting the onset of the wet season. Interestingly, the wind pattern shifts again in July, where it picks up pace to 3.0 m/s (7 mph), signaling a potential return of stronger gusts just as the rainy spells begin. Overall, the trend in Calamba’s winds from May through July illustrates a dynamic interplay between seasons, offering a blend of gentle breezes and vigorous gusts as the year unfolds.
Weather in Calamba varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Calamba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is typically warmer, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F). The humidity remains high at 84%, and the region experiences significant rainfall, accumulating around 180 mm (7.1 in) over an extended 28 days. In contrast, January offers slightly cooler temperatures, with averages ranging from a minimum of 21°C (71°F) to a maximum of 31°C (88°F). The precipitation is comparable at 184 mm (7.2 in), but it occurs over fewer days, totaling 20. The humidity in January is also slightly higher at 85%. For more detailed weather information, check Calamba weather in January.
May and February present distinct climatic conditions, highlighting the transition from early to mid-year. In May, temperatures soar with a minimum of 24°C (75°F) and an average high reaching 34°C (94°F), making it notably warmer than February, which has a milder average max temperature of 31°C (88°F). Additionally, May experiences more frequent rain, with 180 mm (7.1 in) of precipitation over 28 days, compared to February's 135 mm (5.3 in) over 17 days. Humidity levels are slightly higher in May at 84%, versus 80% in February. For more detailed information about February weather, visit Calamba weather in February.
May generally exhibits warmer temperatures compared to March, with average highs reaching 34°C (94°F) versus March's maximum of 32°C (89°F). The minimum temperatures in May are also slightly higher, starting at 24°C (75°F), compared to 21°C (69°F) in March. Additionally, May experiences significantly more rainfall, averaging 180 mm (7.1 in) over 28 days, while March has only 98 mm (3.8 in) across 15 days. The humidity in May is notably higher at 84%, compared to 77% in March. For more detailed weather information specific to March, you can refer to Calamba weather in March.
In comparing the weather between April and May, it’s evident that May experiences a higher average temperature, with a minimum of 24°C (75°F) and an average of 28°C (82°F), while April has a slightly lower average minimum of 21°C (70°F) and an overall average of 27°C (81°F). However, May also sees increased precipitation, totaling 180 mm (7.1 in) spread over 28 days, compared to April's 71 mm (2.8 in) over just 15 days. The humidity in May rises to 84%, surpassing April's 78%, contributing to a more muggy feel as the month progresses. For a deeper look into April’s weather patterns, you can visit Calamba weather in April.
May and June exhibit relatively warm temperatures, with May having a slightly higher average temperature at 28°C (82°F) compared to June's average of 27°C (81°F). While May's temperatures peak at 34°C (94°F), June's maximum reaches 33°C (91°F), indicating only a slight decrease in warmth. However, June experiences increased precipitation, totaling 237 mm (9.3 in) over 27 days, compared to May's 180 mm (7.1 in) over 28 days. Additionally, humidity levels rise from 84% in May to 87% in June, making the air feel slightly more humid as the months progress. For more insights on June's weather, visit Calamba weather in June.
In comparing the weather conditions of May and July, we see that both months experience warm temperatures, with May's average being slightly higher at 28°C (82°F) compared to July's 27°C (80°F). The maximum temperatures in May can reach up to 34°C (94°F), while July peaks at 33°C (91°F). However, July is notably wetter, with total precipitation of 297 mm (11.7 in) compared to May's 180 mm (7.1 in), and it rains for nearly every day of the month, with precipitation recorded on 29 days versus 28 days in May. Additionally, humidity levels rise in July to an average of 88%, compared to May's 84%. For more details, you can refer to Calamba weather in July.
In May, the weather tends to be warmer with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F), and significant humidity at 84%. Although it is relatively warm, May experiences a total precipitation of 180 mm (7.1 in) spread over 28 days. In contrast, August is slightly cooler, with average temperatures from 23°C (73°F) to 32°C (90°F), yet it sees higher rainfall of 264 mm (10.4 in) also over 28 days. Furthermore, the humidity rises to 89%, making it feel more oppressive. The contrast in temperatures and precipitation highlights the shift from the warmer, mildly wet May to the more humid and rainier August. For more details, you can refer to Calamba weather in August.
May and September both showcase warm temperatures but differ slightly in their climatic characteristics. In May, temperatures range from a minimum of 24°C (75°F) to a maximum of 34°C (94°F), with an average of 28°C (82°F). The month experiences significant rainfall, totaling 180 mm (7.1 in) over 28 days, and maintaining a high humidity level of 84%. In contrast, September typically sees a slightly cooler range, with minimum temperatures of 22°C (72°F) and maximums reaching 32°C (90°F), averaging at 26°C (80°F). However, September is notably wetter, accumulating 288 mm (11.3 in) of rain over the same number of days, alongside a higher humidity of 90%. For more information on September's weather patterns, check this link: Calamba weather in September.
May and October exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 24°C (75°F) to a maximum of 34°C (94°F), with an average of 28°C (82°F). The month sees a considerable amount of rainfall, totaling 180 mm (7.1 in) over 28 days, alongside high humidity levels at 84%. In contrast, October features slightly cooler temperatures, with a minimum of 22°C (73°F), an average of 26°C (80°F), and a maximum of 32°C (89°F). However, it receives more precipitation, amounting to 271 mm (10.7 in) over 29 days, and humidity remains high at 87%. For a more detailed outlook, you can check Calamba weather in October.
May and November both exhibit warm temperatures, but May tends to be slightly hotter, with average highs reaching 34°C (94°F) compared to November's maximum of 31°C (89°F). However, November experiences higher humidity at 90%, compared to May’s 84%. Precipitation is also more pronounced in November, with 218 mm (8.6 in) over 27 days, compared to May's 180 mm (7.1 in) across 28 days. This higher rainfall in November contributes to the perhaps muggier conditions typical of the month. For more detailed information, you can visit Calamba weather in November.
In comparing the weather of May and December, we see that May is generally warmer, with average temperatures reaching up to 28°C (82°F) and maximums soaring to 34°C (94°F). In contrast, December tends to be cooler, with average temperatures around 26°C (79°F) and maximums peaking at 31°C (88°F). However, December experiences higher precipitation, totaling 267 mm (10.5 in) across 25 rainy days, compared to May's 180 mm (7.1 in) over 28 days. Additionally, the humidity is noticeably higher in December at 91%, compared to May's 84%. For a more detailed view of December weather, you can check out Calamba weather in December.
As May unfolds in Calamba, the weather stands out with its warm temperatures and significant humidity, creating a distinct tropical ambiance. Unlike the more temperate months preceding it, May sees an uptick in both warmth and moisture, with rain likely on most days, producing an overall wet atmosphere. The lush greenery flourishes amid the 84% humidity, making the city vibrantly alive. For those looking to explore the rich natural beauty of Calamba, be prepared for showers and steamy afternoons. To dive deeper into the unique climate of Calamba throughout the year, visit Calamba Climate.