Last updated: August 27, 2025
In May, San Fernando, Philippines experiences warm temperatures, with a maximum of 33°C (91°F) and an average of 29°C (84°F), providing a tropical backdrop for the month. Nights offer respite with a minimum temperature of 26°C (78°F). This month is also characterized by significant rainfall, totaling 161 mm (6.3 in) across 15 days, contributing to the area's lush landscapes. With an average humidity of 77%, the atmosphere feels warm and muggy, making it an ideal time for those who cherish tropical climates.
In May, temperatures in San Fernando, Philippines begin to reflect the full embrace of summer, with a noticeable increase in warmth. The month opens with minimum temperatures rising to 26°C (78°F), while the daily averages reach a comfortable 29°C (84°F). The peak warmth escalates to a toasty 33°C (91°F), making it one of the hottest months of the year. This upward trend from previous months indicates a significant shift towards summer heat, as temperatures consistently climb higher, raising the anticipation for bright sunny days. The comfortable averages and warm maxes create an ideal backdrop for outdoor activities, ensuring that May is a vibrant month in San Fernando.
In May, San Fernando experiences a significant increase in precipitation, with a striking 161 mm (6.3 in) of rain falling over 15 days. This shift marks a notable transition from the lighter showers of earlier months, like April’s 31 mm (1.2 in) across just 8 days. As the region shifts into its rainy season, the cumulative precipitation in May sets the stage for even heavier rains ahead, with June receiving 301 mm (11.9 in) over 26 days. This pattern highlights the onset of more frequent and intense rainfall, paving the way for the lush landscapes characteristic of the region in subsequent months. The dramatic rise in rainfall underscores May as a pivotal month, serving as a prelude to the torrential downpours that dominate the summer months.
As May rolls into San Fernando, the humidity stands at 77%, consistent with the levels experienced at the beginning of the year. This month marks a transitional phase, bridging the drier early months and the more humid summer that follows. Interestingly, humidity dips to its lowest in March at just 71%, before rising gradually through April, only to stabilize again in May. However, the ascent doesn't stop there; in the following months, humidity will surge, reaching a peak of 89% by November. This trend illustrates not only the warmth of the tropical climate but also sets the stage for the increasingly oppressive conditions of mid-year, highlighting the unique weather pattern that defines San Fernando's tropical identity.
In May, San Fernando experiences a UV Index of 13, maintaining its status in the extreme exposure category, with a quick burn time of just 10 minutes. This trend of high UV levels continues from preceding months, with January through April showcasing similarly alarming indices ranging from 11 to 14. Notably, even as June approaches with a predicted slight increase to 14, May remains a reminder of the persistent necessity for sun protection in this sunny locale. As temperatures rise, residents and visitors alike should stay vigilant against UV exposure—making informed precautions essential for safe outdoor activities. For more details on UV radiation levels throughout the year, visit San Fernando UV Index.
UV Risk Categories
As May shines in San Fernando, the city basks in an impressive 310 hours of sunlight, matching the previous month of April. This radiant month mirrors the trends of early spring, where sunshine begins to reach its peak after a gradual climb from 239 hours in January to a delightful 314 hours in March. Following May, the summer months see a slight decline, dropping to 278 hours in June and continuing downwards through July and August. Overall, May stands out as a vibrant spring month, perfectly balancing warm days with abundant sunshine, setting the stage for the transition into the sunny summer season ahead.
As May rolls around in San Fernando, the likelihood of experiencing sunny weather reaches its peak at 60%, making it one of the brightest months of the year. This increase follows a steady upward trend from the earlier months, where the chances of sunshine rose from 34% in January to 59% in March. After a slight dip in April, the sun makes a triumphant return just in time for the summer months, before the rainy season sets in. In stark contrast, the ensuing months from June to August plummet with odds of just 16% to 9%, highlighting May as the perfect time to soak up the sun before the monsoon takes over. Whether planning outdoor activities or relaxing under the rays, May's sunny disposition offers a delightful escape in San Fernando.
In San Fernando, Philippines, daylight duration exhibits an intriguing rhythm throughout the year. Starting from 11 hours in both January and February, the days gradually lengthen as spring approaches, reaching 12 hours in March and maintaining this duration through April and May. As the summer solstice approaches in June, daylight peaks at a generous 13 hours, allowing for extended basking in the sun. Following this crescendo, daylight starts to taper off, returning to 12 hours from July to September before settling back to 11 hours as the year winds down in October, November, and December. This consistent pattern highlights the region's balanced tropical climate, ensuring abundant daylight and a vibrant atmosphere as the seasons shift.
In San Fernando, Philippines, May is characterized by a gentle breeze, with an average wind speed of 2.4 m/s (5 mph), consistent with both January and February. This moderate wind can add a refreshing touch to the warm early summer days. As the transition into the hotter months occurs, April experiences a slight uptick to 3.0 m/s (7 mph), setting the stage for the following summer. The wind begins to pick up noticeably in July, reaching 3.3 m/s (7 mph), before tapering off into the latter part of the year. Overall, the wind patterns in May reflect a continuity that is typical for this time of year, providing a welcomed breeze that balances out the tropical warmth while hinting at the stronger gusts to come in the peak summer months.
Weather in San Fernando varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Fernando, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of May and January, May tends to be hotter, with average temperatures reaching 29°C (84°F) and maximums of 33°C (91°F), compared to January's average of 26°C (79°F) and maximums of 29°C (85°F). Additionally, May experiences significantly higher precipitation, totaling 161 mm (6.3 in) over 15 rainy days, while January sees only 64 mm (2.5 in) of rain across 11 days. Despite both months having similar humidity levels at 77%, the wetter conditions in May contribute to a more lively atmosphere. If you're looking for a detailed look at January weather specifically, check out San Fernando weather in January.
In comparison to February, May tends to be significantly warmer and wetter. While February experiences a minimum temperature of 22°C (72°F) and an average of 26°C (79°F), May's temperatures start higher, with a minimum of 26°C (78°F) and an average of 29°C (84°F), culminating in a maximum of 33°C (91°F). Additionally, May sees much more precipitation, averaging 161 mm (6.3 in) across 15 days, compared to February's modest 49 mm (1.9 in) over just 8 days. The humidity also rises slightly in May, peaking at 77% compared to February’s 73%. For more specific details on February weather, you can refer to San Fernando weather in February.
In comparing the weather of May and March, May tends to be warmer and more humid. May's average temperature is around 29°C (84°F), with maximums reaching 33°C (91°F), while March has slightly cooler averages at 27°C (81°F) and a maximum of 31°C (89°F). Additionally, May experiences significantly more rainfall, accumulating 161 mm (6.3 in) over 15 days, compared to March's mere 22 mm (0.8 in) across just 6 days. The humidity also rises in May to 77%, compared to March’s 71%. For a detailed look at March weather, you can visit San Fernando weather in March.
In comparing the weather between April and May, we see a noticeable increase in temperature and precipitation. May experiences a minimum temperature of 26°C (78°F) and averages around 29°C (84°F), compared to April's minimum of 24°C (75°F) and an average of 28°C (83°F). The maximum temperatures are similar, with May peaking at 33°C (91°F) and April capping at 32°C (91°F). However, May is significantly wetter, receiving 161 mm (6.3 in) of rain over 15 days, while April only sees 31 mm (1.2 in) across 8 days. Additionally, humidity levels rise slightly in May to 77%, up from April’s 73%. For more detailed information, you can refer to San Fernando weather in April.
In comparing the weather between May and June, we observe similar temperature patterns, with both months showcasing a minimum of 26°C (78°F), an average of 29°C (84°F), and a maximum of 33°C (91°F). However, June experiences significantly higher precipitation, totaling 301 mm (11.9 in) across 26 days, compared to May's 161 mm (6.3 in) over just 15 days. Additionally, humidity increases in June, reaching 85% versus May's 77%. This trend indicates that while temperatures remain consistent, June brings a much wetter and more humid climate. For a detailed look at the specific weather conditions, you can visit San Fernando weather in June.
When comparing the weather in May and July, both months exhibit warm temperatures, with May being slightly warmer on average, reaching highs of 33°C (91°F) compared to July's maximum of 32°C (90°F). However, July sees significantly higher precipitation, with 584 mm (23.0 in) falling over 29 days, while May experiences only 161 mm (6.3 in) across 15 days. Additionally, July's humidity is higher at 86%, compared to May's 77%. For more detailed insights on July weather, visit San Fernando weather in July.
When comparing the weather in May and August, there are some notable differences. May typically features slightly warmer temperatures, with averages around 29°C (84°F) and maximums reaching 33°C (91°F). In contrast, August experiences marginally cooler averages of 28°C (82°F), although it can still reach a maximum of 32°C (89°F). The most significant distinction lies in precipitation; May has 161 mm (6.3 in) spread over 15 rainy days, whereas August sees a dramatic increase to 682 mm (26.9 in) across 29 days, resulting in higher humidity levels at 87%. For more detailed information, you can visit San Fernando weather in August.
May and September exhibit notable differences in weather patterns. In May, the temperatures range from a minimum of 26°C (78°F) to a maximum of 33°C (91°F), with an average temperature of 29°C (84°F). The month sees significant rainfall, with 161 mm (6.3 in) falling over 15 days, and humidity levels at 77%. In contrast, September features slightly cooler temperatures, with a minimum of 25°C (77°F) and a maximum of 32°C (90°F), averaging 28°C (82°F). However, it experiences much heavier precipitation, totaling 359 mm (14.1 in) across 26 days, and higher humidity at 87%. For more details, you can check San Fernando weather in September.
In May, temperatures typically range from a minimum of 26°C (78°F) to a maximum of 33°C (91°F), with an average of 29°C (84°F). The month sees considerable precipitation as well, with about 161 mm (6.3 in) falling over approximately 15 days and humidity levels around 77%. In contrast, October features slightly cooler temperatures, with a minimum of 24°C (76°F) and a maximum of 32°C (89°F), averaging 28°C (83°F). However, it experiences more frequent rainfall, totaling 273 mm (10.8 in) over 23 days, and humidity rises to 86%. For more detailed insights about October weather, you can visit San Fernando weather in October.
In comparing May and November weather, both months feature warm temperatures, but May is slightly hotter, with average temperatures reaching 29°C (84°F) compared to November's 28°C (82°F). While May sees higher maximum temperatures of up to 33°C (91°F), November's temperatures peak at 31°C (88°F). Precipitation is more substantial in May, totaling 161 mm (6.3 in) across 15 days, whereas November experiences less rainfall at 127 mm (5.0 in) over 18 days. Additionally, humidity levels are higher in November, reaching 89% compared to 77% in May. For more detailed information, you can check San Fernando weather in November.
May and December in San Fernando showcase distinct weather patterns, characterized primarily by temperature and humidity levels. May experiences slightly warmer temperatures, with a minimum of 26°C (78°F) and an average of 29°C (84°F), peaking at 33°C (91°F). In contrast, December's temperatures are milder, ranging from a minimum of 24°C (76°F) to a maximum of 30°C (86°F), with an average of 27°C (81°F).
Precipitation in May is also more significant, totaling 161 mm (6.3 in) over 15 days, compared to December's 102 mm (4.0 in) spread across 17 days. Additionally, December experiences higher humidity levels at 85%, while May's humidity is 77%. These variations create a more humid and potentially rainier experience in December. For more detailed insights, check out San Fernando weather in December.
As May unfolds in San Fernando, it ushers in a distinct shift in weather patterns characterized by warmer temperatures and increased humidity. With maximum temperatures climbing to a sunny 33°C and an average hovering around a comfortable 29°C, this month marks a departure from the cooler breezes of earlier months. However, it also brings noticeable precipitation, with nearly half the days experiencing rain, contributing to the lush landscape. This interplay of warmth and moisture paints May as a vibrant precursor to the summer, offering a unique experience compared to the drier months that precede it. For a more in-depth look at how these conditions shape your visit, explore more at San Fernando Climate.