Last updated: January 18, 2025
The climate of Santarém, Portugal, is characterized by a Mediterranean climate as classified by the Köppen-Geiger system, encompassing the Csa and Csb classes. This region experiences a significant temperature range, with a notable minimum of -3°C (26°F) in January, illustrating its capacity for cold spells, while the maximum peaks at an impressive 46°C (114°F) in August, reflecting the intense summer heat. The annual average temperature hovers around 16°C (62°F), indicating a generally mild climate conducive to a variety of agricultural and outdoor activities throughout the year.
In Santarém, Portugal, temperature patterns throughout the year showcase marked seasonal variability. Winter months, particularly January and December, see minimum temperatures dip as low as -3°C (26°F), with average highs reaching around 22°C (72°F) in January. As spring progresses, the temperatures gradually rise, with March and April bringing milder conditions, where average temperatures climb to approximately 15°C (59°F) and maximums reach into the upper 30s°C (°F). The onset of summer in June amplifies this trend, with temperatures spiking to an impressive 46°C (114°F) in August, the warmest month. By September, a slight cooling brings relief, leading into an autumn characterized by a return to more moderate temperatures, with daily averages in the range of 18-23°C (65-73°F). Overall, Santarém experiences a dynamic climate that transforms distinctly from the chilly depths of winter to the sweltering heights of summer, presenting a diverse range of weather throughout the year.
Monsanto, Santarem, and Fatima all experience similar temperature ranges, with January temperatures dipping to a minimum of -3°C (26°F) and August highs reaching up to 42°C (108°F) in Monsanto and Fatima, and 43°C (110°F) in Santarem. For detailed monthly temperature information, visit monthly temperatures in Monsanto, monthly temperatures in Santarem, and monthly temperatures in Fatima.
Precipitation in Santarém, Portugal, exhibits a clear seasonal pattern, with the majority of rainfall concentrated in the autumn and winter months. January and February receive moderate rainfall amounts of 41 mm (1.6 in) and 58 mm (2.3 in) respectively, marking the start of the wetter season. This trend continues in March and April, with precipitation peaking at 89 mm (3.5 in) and 92 mm (3.6 in), coinciding with increased cloud cover and an increase in rainy days, particularly in April when rain is recorded on about 12 days. Conversely, May sees a moderate drop to 46 mm (1.8 in), indicating a transition towards drier conditions.
As summer approaches, rain becomes scarce, with June, July, and August receiving notably low amounts—averaging just 18 mm (0.7 in), 5 mm (0.2 in), and 6 mm (0.2 in), respectively. This dry spell results in minimal rainy days, with July and August recording just 1 day of rain each. The onset of fall brings a revival in precipitation, particularly in October and November, which experience a resurgence with 61 mm (2.4 in) and 93 mm (3.6 in) respectively. December follows suit with 65 mm (2.6 in), emphasizing the seasonal shift back to wetter conditions as the year concludes.
In Santarém, Portugal, the sunshine duration showcases a distinct seasonal rhythm, beginning with the relatively low hours observed during the winter months. January records 176 hours of sunshine, which gradually increases in February to 218 hours. As the region transitions into spring, there is a pronounced increase, peaking in April with 343 hours of bright, sunny days. This rising trend continues into the summer months, with sunshine hours reaching their zenith in July at 422 hours, underscoring July as the sunniest month of the year and providing ideal conditions for outdoor activities and tourism.
Following July’s peak, sunshine hours slightly taper off in August (with 395 hours) but remain robust throughout the summer. The onset of autumn sees a gradual decline in daylight, with September and October receiving 346 hours and 310 hours respectively. By November and December, sunshine duration diminishes, dropping to 222 hours and 206 hours. This seasonal pattern not only illustrates Santarém's vibrant summers but also highlights the transition into winter, where shorter and cloudier days become more prevalent, setting the stage for a cozy and reflective time of year.
The UV Index in Santarém, Portugal, reveals a dynamic fluctuation throughout the year, reflecting the changing intensity of solar radiation. During the winter months of January and February, the UV Index is relatively low, registering at 3 and 5, respectively, which falls within the moderate exposure category. Consequently, individuals are advised to take standard precautions to protect their skin, as the burn time at these levels is around 30 minutes. However, as spring approaches, the UV levels begin to rise significantly, with March marking an increase to 6, indicative of high exposure, and a reduced burn time of 25 minutes.
Summer months exhibit the most intense UV exposure, peaking in June with an extreme UV Index of 11, which necessitates stringent sun protection measures, as the burn time shortens to just 10 minutes. The levels remain notably high throughout the summer, with July recording a UV Index of 10 and August dropping slightly to 9, both categorized as very high exposure. As autumn sets in, the UV Index begins to decline, dropping back to 6 and 4 in October and November, respectively, before returning to moderate levels of 3 in December. This seasonal pattern serves as a reminder for residents and visitors to remain vigilant about sun safety, particularly during the peak summer months when the risk of skin damage is heightened.
UV Risk Categories
In Santarém, Portugal, daylight duration fluctuates throughout the year, reflecting the natural progression of seasons. January starts with just 9 hours of daylight, gradually increasing to 10 hours in February and reaching 11 hours by March. This trend of lengthening days continues into spring, peaking at 13 hours in April, and further extending to a maximum of 14 hours in both May and June. This notable increase in daylight provides ample time for outdoor activities and contributes to the vibrant atmosphere during the spring and early summer months.
As summer transitions into autumn, daylight hours begin to wane. July maintains the 14-hour high before tapering off to 13 hours in August, and then further decreasing to 12 hours in September. By October, daylight reduces to 11 hours, and the year concludes with the return of shorter days in November and December, both averaging 9 hours. This seasonal cycle emphasizes the varying lengths of daylight in Santarém, which not only influences daily life and energy usage but also sets the stage for seasonal activities and celebrations throughout the year.
Fatima, Portugal experiences a temperate climate with significant seasonal variation. Winters can be cold, with January temperatures ranging from -3°C to 20°C, while summers are hot, especially in August, with temperatures reaching up to 42°C. The region sees ample rainfall during spring and fall, peaking in April and November, while summer months are relatively dry. Sunshine is abundant, particularly from May to August, contributing to the destination's charm. For more detailed information, visit Fatima climate.
Monsanto, Portugal experiences a Mediterranean climate characterized by warm summers and mild winters. January temperatures range from -3°C to 20°C, while July and August see highs of up to 42°C. Precipitation varies throughout the year, with March and April receiving the most rainfall at 103 mm and 111 mm, respectively, while July has minimal rainfall at only 6 mm. The region enjoys ample sunshine, particularly in the summer, boasting up to 414 hours in July. For more details, visit Monsanto climate.
Santarem, Portugal experiences a Mediterranean climate with warm summers and mild winters. Temperatures range from a chilly min of -3°C (26°F) in January to a scorching max of 43°C (110°F) in August. Precipitation peaks in April and November, averaging around 86 mm (3.4 in) and 89 mm (3.5 in), respectively, while July sees minimal rainfall of just 3 mm (0.1 in). Sunshine hours are abundant in the summer, reaching up to 420 hours in July, making it an attractive destination for sun seekers. For more detailed information, check out Santarem climate.
In conclusion, the climate and daylight patterns in Santarém, Portugal, illustrate a captivating interplay between temperature, precipitation, sunshine duration, UV Index, and daylight duration throughout the year. The region experiences a Mediterranean climate with distinct seasonal variations, characterized by warm, sunny summers and cooler, wetter winters. The significant increase in daylight hours from winter to summer enhances outdoor activities and local tourism, while the rising UV Index during peak months underscores the importance of sun safety. As residents and visitors navigate these seasonal transitions, understanding the climate dynamics of Santarém enables them to fully appreciate the beauty and adaptability of this vibrant region all year round.