Last updated: January 18, 2025
The climate of Ilocos, Philippines is characterized by a diverse range of conditions, classified under the Köppen-Geiger climate categories as Am (Tropical Monsoon), Aw (Tropical Savanna), and Cwb (Temperate Highlan). Throughout the year, temperatures display significant variation, with a minimum of 11°C (51°F) recorded in February, an average of 27°C (81°F), and soaring to a maximum of 40°C (105°F) in the sweltering month of May. This climatic profile not only shapes the region's unique ecosystems but also influences local agriculture and daily life in this vibrant area.
Temperature patterns in Ilocos, Philippines exhibit distinct seasonal trends throughout the year. The cooler months of January and February experience minimum temperatures around 11°C (51°F) and average around 25°C (78°F), while maximums peak at 35°C (95°F). As spring progresses into March and April, temperatures rise, with March averaging 27°C (81°F) and reaching a maximum of 37°C (99°F), while April further warms to an average of 28°C (82°F) and a peak of 38°C (102°F). The height of summer in May sees a notable spike, with temperatures soaring to a maximum of 40°C (105°F), though it is accompanied by an average still holding around 28°C (83°F). As the rainy season begins in June, temperatures stabilize, averaging around 28°C (82°F) but peak still high at 39°C (103°F). From July to September, warmer temperatures recede slightly, with averages of 27°C (81°F) and maximums varying between 35°C (95°F) and 36°C (96°F). By the close of the year, temperatures gradually cool again, with December seeing averages of 26°C (79°F) and maximums declining to 34°C (94°F). Overall, these trends reflect the tropical climate's characteristic warmth punctuated by cooler months and peak summer heat.
In February, Vigan experiences a minimum temperature of 19°C (66°F) and reaches a maximum of 32°C (90°F) by April, making it a warm destination. Laoag, slightly warmer, has a minimum of 21°C (69°F) in February and peaks at 33°C (92°F) in June. Pagudpud shares a similar minimum temperature of 19°C (67°F) in February but also sees a maximum temperature of 33°C (91°F) in June. For more details, explore the climate in each location: monthly temperatures in Vigan, monthly temperatures in Laoag, and monthly temperatures in Pagudpud.
Precipitation patterns in Ilocos, Philippines reveal a marked shift from dry to wet conditions as the year progresses. January begins the year with modest rainfall, averaging 52 mm (2.0 in) over approximately six days, which decreases slightly in February to 32 mm (1.3 in) across five days. March continues this trend, with 31 mm (1.2 in) of rainfall, setting the stage for April's increase to 56 mm (2.2 in). However, it is in May that precipitation begins to surge dramatically, with 187 mm (7.4 in) over 21 days, signaling the onset of the monsoon season.
As the monsoon intensifies from June to August, Ilocos experiences its peak rainy months, with June recording a staggering 312 mm (12.3 in) of rainfall over 26 days. July and August maintain this high rainfall, with 494 mm (19.5 in) each month. This deluge results in significantly fewer dry days, creating a pattern of persistent wetness. The transition into autumn and winter sees a tapering off, with September dropping to 337 mm (13.3 in) and October to 248 mm (9.8 in). November and December further reduce precipitation, settling at 119 mm (4.7 in) and 74 mm (2.9 in), respectively, as the region returns to a drier state.
In Ilocos, Philippines, sunshine duration showcases a clear seasonal trend, highlighting the region's transition from winter to summer. January starts the year with 238 hours of sunshine, gradually increasing to 275 hours in February. As spring approaches, sunlight peaks in March with an impressive 314 hours, making it the sunniest month of the year. The warm weather continues into April and May, with sunshine duration remaining high at 310 and 313 hours, respectively. This steady rise in sunlight hours reflects the region's shift toward more favorable conditions, allowing for vibrant agricultural activities and outdoor pursuits.
However, as the rainy season begins in June, a slight decline in sunshine occurs, dropping to 281 hours. This trend continues through July and August, with sunshine hours falling to 258 and 241 hours, respectively. Despite the reduction, September marks a modest recovery with 259 hours of sunlight, while October provides a resurgence, reaching 274 hours. As the year winds down, November and December maintain a consistent pattern with 269 and 281 hours of sunshine. Overall, the data emphasizes the distinct seasonal variations in sunshine duration in Ilocos, illustrating the balance between abundant sunlight and the inevitable shifts brought about by the monsoon season.
In Ilocos, Philippines, the UV Index presents a consistently high risk for sun exposure throughout most of the year, categorizing it as extreme. Starting with a UV Index of 11 in January, the trend escalates sharply in February, reaching 13, and peaks at 15 during the spring and summer months of March, April, June, July, and August. This pattern emphasizes a sustained need for protective measures against harmful UV radiation, with a notably brief burn time of just 10 minutes during these months, indicating that even minimal exposure can lead to sunburn.
As the year progresses toward the latter months, the UV Index remains high, with values of 14 in September and 13 in October, continuing to signal a strong risk for skin damage. In November, it decreases slightly to 11, maintaining an extreme category, while December sees a minor drop to a UV Index of 10, classified as very high, with an extended burn time of 15 minutes. Collectively, this data underscores the importance of sun safety practices in Ilocos throughout the year, especially in the peak months, to mitigate the risks associated with extreme UV exposure.
UV Risk Categories
Daylight duration in Ilocos, Philippines exhibits a stable pattern throughout the year, reflecting the region’s tropical climate. Both January and February experience approximately 11 hours of daylight, providing a consistent experience for residents and visitors alike. As spring approaches in March, daylight gradually increases to 12 hours, a trend that continues through April and May, promoting vibrant outdoor activities during these sunnier months. By June, the longest day length of 13 hours is recorded, enhancing opportunities for sunlit adventures and agricultural productivity.
Following the peak in June, daylight hours begin to slightly taper off, with July through September consistently offering around 12 hours each day. This balance of light allows for continued engagement with nature, even as the rainy season begins. As the year progresses into the final months, daylight duration returns to 11 hours in October, November, and December. This gradual decrease towards the end of the year highlights the cyclical nature of daylight in Ilocos, with a predominance of around 11 to 12 hours for most of the year, fostering a strong connection to the rhythms of the seasons.
Alaminos, Philippines experiences a tropical climate characterized by warm temperatures year-round, with average monthly temperatures ranging from 26°C (79°F) in January to 29°C (84°F) in May. The city sees significant rainfall, particularly from June to August, with July and August averaging 455 mm (17.9 in) and 464 mm (18.3 in) respectively. Despite the rainy season, Alaminos enjoys ample sunshine, peaking at 319 hours in May. For more detailed climate information, visit Alaminos climate.
Bauang, Philippines experiences a tropical climate characterized by warm temperatures and significant rainfall. The temperature ranges from a minimum of 22°C (71°F) in January to a maximum of 33°C (91°F) in May. The wet season peaks from July to August, with rainfall reaching up to 682 mm (26.9 in), while the drier months see considerably lower precipitation. Sunshine hours are abundant, particularly from February to March, providing up to 314 hours of sun. For more details, visit Bauang climate.
Bolinao, Philippines, experiences a tropical climate with warm temperatures year-round, averaging from 26°C (79°F) in the cooler months to highs of 32°C (89°F) in May and June. The wettest months are from June to August, with rainfall peaking at 634 mm (25.0 in) in August, while January is relatively dry with only 27 mm (1.1 in). Sunshine is abundant, especially in March and May, where residents enjoy over 300 hours of sunlight. For more detailed climate information, visit Bolinao climate.
Carmen, Philippines, experiences a tropical climate with warm temperatures year-round. Monthly average temperatures range from 25°C (78°F) in January to 29°C (84°F) in May, with highs reaching up to 38°C (100°F). Rainfall is heaviest from June to August, peaking at 475 mm (18.7 in) in July, contributing to a distinct wet season. The area enjoys ample sunshine, particularly in March with 313 hours. For more details, visit Carmen climate.
Dagupan, Philippines, experiences a tropical climate characterized by warm temperatures year-round. Monthly average temperatures range from 26°C (80°F) in January to 29°C (85°F) in April and May, peaking at 36°C (97°F) in May. Rainfall is significant, particularly during the monsoon season from June to September, with July receiving the highest average precipitation at 392 mm (15.4 in). Despite the rainy months, Dagupan enjoys considerable sunshine, particularly in the drier months of February and March, where it can reach up to 313 hours. For more detailed information, visit Dagupan climate.
Ilioilio, Philippines experiences a tropical climate characterized by warm temperatures throughout the year, with averages ranging from 27°C (81°F) in cooler months to 29°C (84°F) in May. The wettest months are July and August, receiving up to 577 mm (22.7 in) and 549 mm (21.6 in) of rainfall, respectively, while January remains relatively dry with 30 mm (1.2 in) of precipitation. Sunshine is abundant, peaking in May with 325 hours, ensuring plenty of bright days year-round. For a detailed overview of the climate in Ilioilio, visit Ilioilio climate.
Laoag, Philippines experiences a tropical climate characterized by a distinct wet and dry season. Temperatures range from a minimum of 21°C (70°F) in January to a maximum of 33°C (92°F) in June and July, with average temperatures hovering around 28°C (82°F). Rainfall peaks in July and August, accumulating over 500 mm (20 inches), while the dry months from January to March receive minimal precipitation. Despite the heavy rainfall during the wet season, Laoag enjoys plenty of sunshine, particularly from March to May, with up to 329 hours in May. For more detailed information, visit Laoag climate.
Lingayen, Philippines experiences a tropical climate characterized by warm temperatures and distinct wet and dry seasons. Average temperatures range from a minimum of 21°C (69°F) in February to a maximum of 36°C (97°F) in May, with a consistent average around 28°C (82°F). Precipitation peaks during the wet months from June to August, with July receiving the highest rainfall at 392 mm (15.4 in). Despite the rainfall, sunshine hours remain substantial throughout the year, particularly in March with 313 hours. For more details, visit Lingayen climate.
Manaoag, Philippines experiences a tropical climate with warm temperatures year-round. Average monthly temperatures range from 25°C (78°F) in January to 29°C (84°F) in May, peaking at a maximum of 38°C (100°F) in May. The region sees significant rainfall, particularly from June to August, with July being the wettest month at 475 mm (18.7 in). Despite the heavy rains, Manaoag enjoys ample sunshine, with March averaging the highest at 313 hours. For more details, visit Manaoag climate.
Pagudpud, Philippines, experiences a tropical climate characterized by warm temperatures and a distinct rainy season. Average monthly temperatures range from 24°C (76°F) in January to 28°C (83°F) in May, with peaks reaching up to 33°C (91°F) in June. The region receives the highest rainfall from July to September, with July alone averaging 384 mm (15.1 in). Despite the rain, Pagudpud enjoys ample sunshine, particularly in March and May, with over 300 hours recorded each month. For detailed climate information, visit Pagudpud climate.
Paoay, Philippines experiences a tropical climate characterized by high temperatures and significant rainfall throughout the year. Average temperatures range from 26°C (78°F) in January to 28°C (82°F) in several months, with maximums peaking at 33°C (91°F) during April, May, and June. The rainy season occurs mainly from May to September, with July and August recording the highest precipitation levels at 470 mm (18.5 in) and 564 mm (22.2 in), respectively. Despite the rains, Paoay enjoys plentiful sunshine, particularly in March and May, with over 300 hours of sunlight. For more detailed information, visit Paoay climate.
San Fernando, Philippines, experiences a tropical climate characterized by warm temperatures and significant rainfall, particularly from June to August. Average temperatures range from 26°C (79°F) in January and February to a peak of 29°C (84°F) in May and June. Rainfall varies dramatically throughout the year, with the wettest months being July and August, receiving over 600 mm of precipitation. Despite the rains, the region enjoys ample sunshine, peaking at 314 hours in March. For more detailed climate information, visit San Fernando climate.
San Juan, Philippines, features a tropical climate with consistent temperatures year-round, averaging between 26°C to 28°C (78°F to 83°F). The hottest months are typically March to May, reaching maximums of 32°C (91°F). Precipitation peaks from June to August, with July experiencing the highest rainfall at 533 mm (21.0 in), while the driest month is March with only 11 mm (0.4 in). Sunshine is abundant, peaking in March and May with over 316 hours. For further details, visit San Juan climate.
Vigan, Philippines, experiences a tropical climate characterized by warm temperatures and distinct wet and dry seasons. Average monthly temperatures range from 25°C (78°F) in January and February to a peak of 28°C (82°F) from May to June, with maximums often reaching 32°C (90°F). Precipitation is highest during the rainy season from June to September, with July and August receiving over 600 mm (24 inches) of rain each month. The dry season, which spans from December to April, offers more sunshine, peaking in hours from March to May. For more details, visit Vigan climate.
In conclusion, the climate of Ilocos, Philippines, is characterized by its distinct seasonal variations, optimal sunshine, and intense UV radiation throughout the year. Temperature patterns reveal warm, tropical conditions, with peaks during the summer months, while precipitation values indicate a definitive transition from drier winter months to the wetter monsoon season. Daylight duration consistently provides ample opportunity for outdoor activities, reflecting the region’s vibrant ecosystem and agricultural potential. However, the extreme UV Index necessitates awareness and protective measures, encouraging both residents and visitors to enjoy the sun responsibly. Overall, Ilocos exemplifies a unique climate that shapes the lifestyle and environment of this dynamic region.