Last updated: August 27, 2025
In May, Calamba, Philippines experiences a warm tropical climate characterized by an average temperature of 27°C (81°F), with highs reaching up to 30°C (87°F) and lows around 25°C (77°F). This month sees significant moisture, with an impressive precipitation total of 221 mm (8.7 in) spread over 25 days, resulting in a notably high humidity level of 83%. Visitors should be prepared for frequent rain showers, which contribute to the lush greenery and vibrant landscapes the region is known for.
In Calamba, Philippines, the month of May ushers in warmer temperatures, with minimums reaching a comfortable 25°C (77°F) and maximums peaking at 30°C (87°F). This slight rise in temperatures, compared to previous months, signals the approach of the hotter summer season. The average temperature for May settles at a pleasant 27°C (81°F), aligning closely with the steady warmth seen since April. As the city transitions into June, temperatures continue to trend upward, hinting at the sultry days ahead. Overall, May offers a delightful blend of warmth, making it an inviting time for outdoor activities and seasonal celebrations in this vibrant locale.
In May, Calamba experiences a notable surge in precipitation, receiving 221 mm (8.7 in) over 25 days, making it one of the wetter months of the year. This rainfall marks a slight increase from April's 92 mm, setting the stage for the lush, vibrant landscapes typical of the region during this time. As the rainy season approaches, the frequency of precipitation paves the way for thriving flora and a refreshing ambiance. Following May, rainfall remains consistent through June and July, both bringing 210 mm of rain, indicating a sustained wet pattern that underscores the region's tropical climate. This trend highlights Calamba's transition into its peak rainy season, where each drop contributes significantly to the area's agricultural prosperity and natural beauty.
In Calamba, Philippines, the month of May experiences a slight dip in humidity at 83%, continuing a gradual decline that started in January. After starting the year with the highest humidity levels at 88%, the city sees a steady decrease through to April, when humidity reaches 82%. May marks a small uptick before a gradual rise again in June, suggesting a transitional phase as the region shifts toward the more humid months of the wet season. This trend highlights the area’s characteristic tropical climate, where humidity levels are generally high but exhibit subtle fluctuations throughout the year.
In May, the UV Index in Calamba, Philippines remains notably high, holding steady at 14, classified as extreme exposure. This trend mirrors the preceding months of March and April, where the UV Index peaked at 16. As summer approaches, the risk of sunburn persists, with a burn time of just 10 minutes. While the index dips slightly in June, it is essential for residents and visitors alike to take diligent sun safety precautions throughout this time. Consistent with patterns seen earlier in the year, maintaining awareness of UV levels is crucial for skin health in Calamba's sunny climate. For more details, visit the Calamba UV Index.
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In Calamba, Philippines, the month of May basks in an impressive 296 hours of sunshine, showcasing a delightful continuation of the sun-drenched days that begin in early spring. Following a peak in March with 299 hours, May maintains a robust glow, just slightly below its predecessor, April. This trend reveals a subtle decline in daylight hours as the region transitions into the sultry summer months. Notably, sunshine hours remain consistently high during these months, with a gradual decline leading into June, which still commands a respectable 273 hours. This pattern highlights Calamba's inviting climate, perfect for outdoor activities and enjoying nature's vibrant beauty leading into the summer season.
May in Calamba, Philippines, brings a moderate 17% chance of sunny weather, slightly lower than April's 18% but not far off from the surrounding months. This trend indicates a subtle dip in sunny days as the region transitions into the wet season, following the brighter March peak at 26%. While May doesn't offer the high likelihood of sun that early spring does, it still provides a fair opportunity for those seeking clear skies before the rainy months take hold, as June and July both slide down to 15% and 14% respectively. So, if you're planning outdoor activities in May, it's wise to stay prepared for the possibility of unpredictable weather while still enjoying the warmer, sunlit days.
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, the month of May brings with it the gentle touch of the wind, with an average wind speed of 2.4 m/s (5 mph), making it one of the quieter months in terms of breeziness. This slight lull follows the average wind speeds of the earlier months, peaking at 3.7 m/s (8 mph) in January, before gradually declining through April. As the region transitions to the humid days of June, the wind further eases, dropping to 1.7 m/s (4 mph). This trend highlights the serene atmosphere of May, characterized by warm temperatures and a calm breeze, inviting residents and visitors alike to savor the tranquil beauty of the season before the winds pick up again later in the year.
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.
When comparing the weather in May and January, we find that May typically features slightly warmer temperatures, with averages of 27°C (81°F) compared to January’s 26°C (79°F). The maximum temperatures in May reach up to 30°C (87°F), while in January, they peak at 29°C (84°F). However, January experiences slightly more precipitation, totaling 258 mm (10.1 in) over 24 rainy days, compared to May's 221 mm (8.7 in) over 25 days. Additionally, humidity levels remain high in both months, with January having a marginally higher average of 88% compared to May's 83%. For more detailed insights, you can check out Calamba weather in January.
May and February exhibit distinct climatic characteristics. In May, the temperatures are slightly higher, with a minimum of 25°C (77°F), an average of 27°C (81°F), and a maximum of 30°C (87°F). The month experiences significant rainfall, totaling 221 mm (8.7 in) over approximately 25 days and maintaining a high humidity level of 83%. In contrast, February brings milder temperatures, with a minimum of 23°C (74°F), an average of 25°C (78°F), and a maximum of 28°C (83°F). It also has slightly less precipitation, totaling 202 mm (7.9 in) over 24 days, accompanied by a humidity level of 86%. For more detailed information, check out Calamba weather in February.
In comparing the weather of May and March, both months exhibit warm temperatures, but May tends to be slightly hotter with average temperatures reaching 27°C (81°F) compared to March's 26°C (79°F). The maximum temperatures are also higher in May, with highs of 30°C (87°F) versus March's 29°C (84°F). However, May experiences significantly more rainfall, with 221 mm (8.7 in) over 25 days, compared to March's 149 mm (5.9 in) over 23 days. Additionally, while humidity levels remain similar, May's humidity is at 83%, slightly lower than March's 84%. For more details on March's weather, visit Calamba weather in March.
In comparing the weather of April and May, we see some notable differences. Both months share a similar average temperature of around 27°C (81°F), but May tends to be slightly warmer with maximum temperatures reaching up to 30°C (87°F). Additionally, May experiences significantly higher precipitation, totaling 221 mm (8.7 in) over 25 days, compared to April’s 92 mm (3.6 in) over 20 days. Humidity remains quite similar, with May at 83% and April at 82%. For more detailed information on April weather, you can visit Calamba weather in April.
In comparing the weather of May and June, we find that both months maintain a similar range of temperatures, with minimums at 25°C (77°F) and averages around 27°C (81°F). However, June tends to be slightly warmer at a maximum of 31°C (88°F), compared to May's 30°C (87°F). Precipitation is quite similar across both months, with May experiencing 221 mm (8.7 in) over 25 days, while June sees a slightly lower total of 210 mm (8.3 in) but over more days, totaling 27. Humidity also rises slightly in June, reaching 85% compared to May's 83%. For more details on June weather, check out Calamba weather in June.
May and July exhibit quite similar weather patterns, characterized by warm temperatures and high humidity. In May, the temperatures range from a minimum of 25°C (77°F) to a maximum of 30°C (87°F), with an average of 27°C (81°F). This month sees substantial rainfall, totaling 221 mm (8.7 in) over 25 days, accompanied by a humidity level of 83%. Meanwhile, July experiences a slightly higher maximum temperature of 31°C (89°F), although it shares the same minimum and average temperatures as May. Precipitation in July is slightly lower at 210 mm (8.3 in) over 24 days, and humidity increases marginally to 86%. Both months are marked by their tropical characteristics, making them notably warm and wet. For a more in-depth look at July weather, you can visit Calamba weather in July.
May and August share similar temperature ranges, with both months featuring minimum temperatures of 25°C (77°F) and average temperatures around 27°C (81°F). However, August experiences a slightly higher maximum temperature of 31°C (88°F) compared to May's 30°C (87°F). In terms of precipitation, May is notably wetter, recording 221 mm (8.7 in) over 25 days, while August has less rainfall at 167 mm (6.6 in) over 22 days. The humidity levels are slightly higher in August at 87%, compared to May's 83%, contributing to a more muggy atmosphere. For more details on August weather, you can visit Calamba weather in August.
May and September in Calamba display similar temperature ranges, with both months averaging around 27°C (81°F). However, September tends to be slightly warmer at its maximum, reaching 31°C (87°F) compared to May’s 30°C (87°F). Precipitation levels are comparable, with May receiving 221 mm (8.7 in) over 25 days and September slightly more at 226 mm (8.9 in) over 24 days. Humidity also increases in September, rising to 89% compared to 83% in May, making it feel more sultry. For more detailed information, you can check Calamba weather in September.
May and October exhibit similar temperature ranges, with both months averaging around 27°C (81°F), peaking at 30°C (87°F). However, October sees slightly higher precipitation, averaging 242 mm (9.5 in) over 28 days, compared to May's 221 mm (8.7 in) over 25 days. Humidity levels are also marginally higher in October, at 85%, compared to 83% in May. Overall, while both months offer warm temperatures, October tends to be wetter and more humid. For more detailed information, you can check Calamba weather in October.
In comparing the weather of May and November, both months exhibit relatively warm temperatures, with average highs reaching around 30°C (87°F) and average lows only slightly differing at 25°C (77°F) for May and 24°C (75°F) for November. However, November tends to be rainier, registering 237 mm (9.3 in) of precipitation over 28 days, while May sees a total of 221 mm (8.7 in) with rain on 25 days. The humidity is also higher in November, averaging 87% compared to May's 83%. For a closer look at the weather patterns you can explore Calamba weather in November.
May and December in Calamba exhibit warm temperatures, with averages hovering around 27°C (81°F) and 26°C (80°F) respectively. Both months see maximum highs of 30°C (87°F) and 30°C (85°F), but December experiences slightly cooler conditions overall. However, December is characterized by higher precipitation, receiving 279 mm (11.0 in) over 29 days, compared to May's 221 mm (8.7 in) over 25 days. Additionally, December's humidity level is higher at 91%, compared to May's 83%. For more detailed insights about weather conditions in December, visit Calamba weather in December.
As May unfolds in Calamba, the weather marks a significant transition, boasting warmer days with average temperatures rising and the humidity peaking at a noticeable 83%. While the sun calls for outdoor adventures, the sky frequently shifts, with rainfall gracing the area on about half the days of the month. This blend of warmth and humidity sets May apart from the cooler months, creating a lush environment that invites both exploration and relaxation. For a deeper dive into Calamba's diverse climate patterns, feel free to visit Calamba Climate.