Last updated: August 27, 2025
December weather in Bulacan, Philippines is characterized by a warm tropical climate, with maximum temperatures reaching up to 32°C (90°F) and an average of 27°C (81°F). The month experiences a minimum temperature of around 23°C (74°F), making it a mild season for outdoor activities. However, frequent rain showers contribute to a total precipitation of 134 mm (5.3 in) over 9 days, adding to the region's lush greenery. With humidity levels soaring at 86%, residents and visitors alike can expect a moist atmosphere, enhancing the tropical ambiance of Bulacan during this time.
In Bulacan, Philippines, December ushers in a subtle transition towards cooler weather, with temperatures reflecting a pleasing warmth. The minimum temperature hovers around 23°C (74°F), while the average settles at a comfortable 27°C (81°F), peaking at a maximum of 32°C (90°F). Compared to the sweltering summer months, there’s a noticeable dip, especially from the peak heat of May, which reaches up to 36°C (96°F). This gradual cooling trend from the previous months creates a pleasant atmosphere for outdoor activities and festivities, making December an inviting time to experience the region's vibrant culture and stunning landscapes. The warmth of the days softens, yet retains a tropical charm, laying a cozy backdrop for holiday celebrations.
In December, Bulacan experiences a notable shift in precipitation, receiving 134 mm (5.3 in) of rain over 9 days. This amount reflects a slight increase from November's 132 mm (5.2 in), indicating the region’s gradual transition as it moves away from the peak wet months of July and August, which often deliver over 400 mm of rainfall. As the year draws to a close, December's precipitation marks a significant decrease from the heavy downpours seen earlier in the monsoon season, which peaked in June with 313 mm. This gradual decline highlights a consistent weather pattern in Bulacan, as the region balances periods of heavy rainfall with relatively drier conditions, paving the way for a fresh, cooler climate in the coming months.
In December, Bulacan, Philippines, experiences a humidity level of 86%, marking a slight decrease from the peak humidity seen in the preceding months. As the year transitions from the wetter rainy season, where humidity hovers around the 89% mark from August to November, the drop in December signals a subtle shift. However, it remains higher than the early months of the year, suggesting that while the intense moisture of the rainy season starts to wane, the tropical climate retains a significant level of humidity. This enduring humidity through December adds to the region's lush landscapes, making it a captivating time to experience Bulacan's vibrant scenery.
In December, Bulacan, Philippines experiences a UV Index of 10, indicating a very high exposure category with a recommended burn time of 15 minutes. This slight dip from the previous months, where the UV Index reached as high as 15, suggests a minor seasonal variation, yet the risk remains significant. Throughout the year, Bulacan consistently exhibits extreme levels of UV radiation, particularly from March to June, where the burn time is notably brief at just 10 minutes. As we transition into December, while the UV Index may decrease slightly, residents and visitors should remain vigilant and practice sun safety. For more details and updates, check the local Bulacan UV Index.
UV Risk Categories
In December, Bulacan, Philippines, basks in 276 hours of sunshine, marking a delightful close to the year. The sunshine hours reflect a subtle decrease from the peak of 317 hours in May, yet maintain a vibrant glow that enriches the cooler climate of the season. This month sits comfortably in the upper echelons of sunlight exposure, outperforming the earlier winter months, with notable consistency. As the year transitions into January, where the sunshine dips to 232 hours, December’s brightness serves as a fragrant reminder of the sun-drenched days that dominate the region’s annual rhythm. The gradual ebb in daylight hours hints at the shifting seasons, yet December firmly establishes itself as a gem in the calendar, offering a warm embrace as the year winds down.
In Bulacan, Philippines, December offers a moderate chance of sunshine, with a likelihood of about 37%. This marks a slight increase from the previous month of November, which stands at 36%, indicating that as the year draws to a close, the region enjoys a bit more sunlight. The weather patterns throughout the year reveal a clear seasonal trend: the likelihood of sunny days peaks during the dry months of February and May, while the rainy season in mid-year sees a dramatic drop in sunshine, particularly in July and August. Thus, while December may not boast the highest sun probability, it does provide a welcome transition into sunnier months ahead, making it an appealing time for outdoor activities.
In December, Bulacan, Philippines experiences a daylight duration of 11 hours, mirroring the shorter days of January and February. The year begins with consistent 11-hour days, transitioning into a period of longer daylight in the spring and summer months from March to September, where days stretch up to 12 hours. This uniformity reflects the region's tropical climate, where daylight duration remains relatively stable throughout the year. As the year winds down, daylight begins to taper off once again, returning to 11 hours in October and November, before settling into the shorter days of late December. This cyclical pattern highlights the predictability of daylight in Bulacan, creating a rhythmic tapestry of light and shadow.
As December sweeps into Bulacan, the winds pick up to an invigorating average speed of 3.2 m/s (7 mph), echoing the year's transitional finale. This marks a notable shift from the lighter breezes typical of the preceding months—especially compared to the calmest periods in April and June, where winds dipped to around 2.1 m/s (5 mph). Interestingly, this late surge in wind speed seems to reflect a seasonal pattern, as the early part of the year tends to be gentler, with February and March often seeing their lowest gusts. With December's breezes, there's a refreshing coolness that complements the festive spirit, reminding residents of the dynamic interplay between the season and the environment as the year draws to a close.
Weather in Bulacan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bulacan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Bulacan range from a minimum of 23°C (74°F) to a maximum of 32°C (90°F), with an average temperature of 27°C (81°F). The month experiences significant rainfall, accumulating up to 134 mm (5.3 in) over 9 days, accompanied by high humidity levels at 86%. In contrast, January sees a slight drop in temperatures, with minimums at 22°C (71°F) and averages around 26°C (80°F), while still peaking at 32°C (89°F). Rainfall is considerably less, totaling 69 mm (2.7 in) over just 4 days, and humidity decreases to 76%. For more detailed weather insights, check out Bulacan weather in January.
In comparing December and February weather, December tends to be warmer with a minimum temperature of 23°C (74°F), while February starts off slightly cooler with a minimum of 21°C (71°F). Both months share an average temperature of 27°C (81°F), but February enjoys a little more warmth at its maximum, reaching 32°C (91°F) compared to December's 32°C (90°F). Precipitation levels significantly diverge; December sees 134 mm (5.3 in) of rain over 9 days, making it much wetter than February, which experiences only 20 mm (0.8 in) over 3 days. Furthermore, humidity is notably lower in February at 71%, compared to December's high of 86%. For more detailed insights, you can check Bulacan weather in February.
In December, the weather is characterized by warm temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), peaking at 32°C (90°F). However, this month sees significant precipitation, totaling 134 mm (5.3 in) over nine days, coupled with high humidity at 86%. In contrast, March offers slightly warmer average temperatures, with a minimum of 23°C (73°F) and an average of 28°C (83°F), and reaching a maximum of 34°C (94°F). Importantly, March experiences much less rainfall, with only 18 mm (0.7 in) over five days and a lower humidity level of 68%. For more details on weather patterns in March, you can refer to Bulacan weather in March.
In December, Bulacan experiences a warm climate with average temperatures ranging from 23°C (74°F) to 32°C (90°F) and a significant amount of rainfall, totaling 134 mm (5.3 in) over approximately 9 days. The high humidity of 86% can make the atmosphere feel quite muggy. In contrast, April sees slightly warmer temperatures, with minimums of 24°C (76°F) and maximums reaching up to 35°C (95°F), while only receiving 23 mm (0.9 in) of precipitation over 7 days. The humidity also drops to 69%, resulting in a drier and more comfortable feel. For more detailed insights, check out Bulacan weather in April.
In December, the weather typically features a minimum temperature of 23°C (74°F) and an average of 27°C (81°F), reaching a maximum of 32°C (90°F). This month also sees significant precipitation, totaling 134 mm (5.3 in) over about 9 days, with humidity levels remaining high at 86%. In contrast, May experiences slightly warmer temperatures, with a minimum of 25°C (77°F), an average of 30°C (86°F), and highs up to 36°C (96°F). May also has more rainfall, amounting to 149 mm (5.9 in) across 19 days, but its humidity is lower at 76%. For more details on May weather specifically, you can check Bulacan weather in May.
In comparing the weather between December and June, we see a noticeable shift in temperature and precipitation. December features milder temperatures, with a minimum of 23°C (74°F) and a maximum of 32°C (90°F), accompanied by an average of 27°C (81°F). This month experiences about 134 mm (5.3 in) of rainfall over 9 days, while humidity remains high at 86%. In contrast, June is warmer, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 35°C (96°F) and an average of 29°C (84°F). However, this month is also much wetter, receiving 313 mm (12.3 in) of rain over an increased number of rainy days—26 in total—with humidity slightly higher at 87%. For a more detailed look at weather conditions in June, you can explore Bulacan weather in June.
December weather in Bulacan features pleasant temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), peaking at 32°C (90°F). In contrast, July offers slightly warmer conditions, where temperatures range from a minimum of 24°C (76°F) to a maximum of 34°C (94°F) and has an average of 28°C (82°F). However, July also brings significantly more rainfall, with a staggering 504 mm (19.8 in) over 30 days, compared to December's 134 mm (5.3 in) spread out across 9 rainy days. Both months exhibit high humidity levels, with December at 86% and July slightly higher at 88%. For more detailed information on July’s weather in Bulacan, check out Bulacan weather in July.
When comparing the weather in December and August, several notable differences emerge. December tends to be slightly cooler, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 32°C (90°F). In contrast, August is warmer, featuring temperatures that span from 24°C (76°F) to a peak of 35°C (95°F). Precipitation also varies significantly, with December receiving about 134 mm (5.3 in) over 9 days, while August sees a much heavier rainfall of 464 mm (18.3 in) across 29 days. Humidity levels are high in both months, reaching 86% in December and 89% in August, making the atmosphere feel quite muggy. For more details, you can check Bulacan weather in August.
In comparing the weather between December and September, December tends to be slightly cooler with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 32°C (90°F), while September has higher averages with temperatures ranging from 24°C (76°F) to 33°C (92°F). Notably, September experiences significantly more rainfall, with 427 mm (16.8 in) compared to December's 134 mm (5.3 in), and rainfall occurs on 28 days in September versus just 9 days in December. Humidity levels are fairly similar, with December at 86% and September at 89%. For more details on September weather, you can visit Bulacan weather in September.
In comparing the weather of December and October, December tends to be slightly cooler, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 32°C (90°F), while October's temperatures are a bit higher, averaging from 24°C (75°F) to 34°C (93°F). Additionally, December experiences significantly less rainfall, with 134 mm (5.3 in) of precipitation over about 9 days, compared to October's much wetter conditions of 286 mm (11.3 in) across 22 days. Both months maintain a consistent humidity level of 86%, making for a humid climate throughout. For more detailed information, you can check Bulacan weather in October.
In comparing the weather patterns of November and December, we see some notable similarities and differences. Both months experience warm temperatures, with December having a slightly lower average temperature of 27°C (81°F) compared to November's 28°C (83°F). Additionally, December's maximum temperature reaches 32°C (90°F), which is marginally below November's high of 33°C (91°F).
Precipitation levels are also quite similar, with December seeing a total of 134 mm (5.3 in) of rain over 9 days, while November has a little less with 132 mm (5.2 in) over 13 days. Humidity is marginally lower in December at 86% compared to November's 89%. For a more detailed perspective on November's weather, you can visit Bulacan weather in November.
As December rolls into Bulacan, the weather showcases a distinct shift compared to other months. With a comfortable average temperature hovering around 27°C, it provides a refreshing respite from the sweltering heat typical of the earlier part of the year. This month also sees an uptick in humidity, often reaching 86%, which, coupled with approximately 134 mm of rainfall spread over 9 days, contributes to a lush, verdant landscape following the downpours. Such unique climatic conditions not only usher in a cooler, more pleasant atmosphere but also enrich the overall beauty of Bulacan during this time, making it a delightful transition into the year-end festivities. For more insights on this region's weather patterns, visit Bulacan Climate.