April Weather in Santarem, Portugal

Last updated: February 24, 2025

April in Santarem, Portugal is a delightful blend of springtime warmth and occasional showers. The maximum temperature can soar to a pleasant 30°C (86°F), while the average is a comfortable 15°C (59°F), creating an inviting atmosphere for outdoor activities. However, temperatures can dip to a refreshing 5°C (41°F) during the cooler nights. With precipitation totaling 86 mm (3.4 in) over 11 days, the month experiences a fair share of rain, accentuated by a humidity level of 70% that contributes to the lush surroundings. Whether exploring the historical charm of the area or enjoying the blossoming landscapes, April offers a vibrant snapshot of Santarem's seasonal beauty.

April Temperature in Santarem

In April, Santarem, Portugal, begins to shake off the chill of winter, with temperatures reflecting the transition into spring. The month welcomes a minimum of 5°C (41°F), while average daily temperatures rise to a pleasant 15°C (59°F), peaking at a comfortable 30°C (86°F). This upward trend signals not just warmer days but also hints at the approaching heat of summer. Compared to March, April shows significant warming, with average temperatures increasing by 2°C (4°F), implying a vibrant environment perfect for exploring the budding landscapes. As the days grow longer and the sun shines brighter, April in Santarem serves as a prelude to the sweltering summer months ahead, making it an ideal time to enjoy outdoor activities.

April Weather in Santarem: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Santarem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495456596568717270655653
Data source: Temperature data for Santarem generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Santarem

April in Santarém, Portugal, marks a notable increase in precipitation, with 86 mm (3.4 in) of rain falling over 11 days—the highest for the month and a pivotal transition into the wetter spring season. This uptick follows a progressive rise from 80 mm in March, showcasing a trend toward increased moisture as temperatures gradually warm. The spring months appear to be wetter, with April's rainfall significantly surpassing that of May, which drops to 41 mm (1.6 in). Such patterns signal a shift away from the drier winter months, reinforcing the rhythm of Santarém’s climate and setting the stage for the lush, vibrant growth that characterizes the region in the months ahead.

April Precipitation Trends in Santarem

The chart displays monthly precipitation patterns in Santarem, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec3854808641154627568959
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Santarem

In April, the humidity in Santarem, Portugal drops to 70%, continuing a gradual decline that starts from a high of 85% in January. This decrease reflects a consistent trend of diminishing humidity as the spring season unfolds, moving from the wetter months of winter toward the drier summer. Interestingly, the humidity levels stabilize at 70% through May, before reaching their lowest point of the year in the warmer months of June and July at 63% and 60% respectively. This pattern not only highlights the transition into a more inviting and comfortable climate but also sets the stage for enjoyable outdoor activities as the region basks in the mildness of spring.

April Average Humidity in Santarem

This chart illustrates the average monthly humidity levels in Santarem, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Santarem

As April arrives in Santarem, Portugal, the UV Index surges to 9, marking the beginning of a season characterized by very high exposure risks. This sharp increase from the previous months highlights a significant trend towards a more intense sun, with a rapid reduction in burn time to just 15 minutes—a stark contrast to the 30 minutes observed in January and February. This upward trajectory continues into May, where the UV Index reaches its peak at 10. As the days grow longer and the sun gains strength, residents and visitors alike should take precautions to protect their skin, especially as June approaches with an even more formidable UV Index of 11. For those planning outdoor activities, understanding these trends is essential; stay informed with the latest updates on the Santarem UV Index to enjoy the sunshine safely.

Maximum UV Index Levels in Santarem for April

The chart shows the monthly maximum UV Index (UVI) for Santarem in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Santarem April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Santarem

April is a brilliant month in Santarem, Portugal, as the sun shines for an impressive 347 hours, marking a significant leap from the 297 hours logged in March. This steady increase in sunshine hours throughout early spring sets the stage for an even brighter May, which boasts 407 hours of sunlight. The trend illustrates Santarem's transition from the chill of winter, where January experiences a mere 178 hours, to the vibrant energy of summer. As days lengthen and the sun warms the landscape, April emerges as a delightful prelude to the sun-drenched months ahead, inviting both locals and visitors to revel in the glorious outdoor offerings of this enchanting city.

Monthly Sunshine Duration in Santarem: April Highlighted

The April sunshine duration represents the total number of hours Santarem experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec178h219h297h347h407h406h420h395h347h310h224h210h
Data source: Santarem April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santarem During April

In Santarem, Portugal, the transition into spring brings a mixed bag of sunshine, with April recording a 33% chance of sunny days. This marks a notable decline from the preceding month of March, which boasts a 59% likelihood, hinting at a brief retreat before summer's warmth sets in. As the year progresses toward the sun-drenched months of May and June, where the chances rise to 53% and 64% respectively, April serves as a gentle reminder of the variable weather patterns typical of early spring. This fluctuation reflects a broader trend of increasing sunlight as the seasons change, making the promise of brighter days on the horizon all the more enticing.

Percentage of Sunny Days in April in Santarem

The chart illustrates the percentage of sunny days in Santarem throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Santarem experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%20%59%33%53%64%74%75%55%53%67%39%
Data source: Santarem April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santarem in April

As spring unfolds in Santarém, Portugal, April ushers in a delightful increase in daylight, boasting an impressive 13 hours of sunshine. This is a notable jump from the 11 hours observed in March, signaling a transition into longer, warmer days. Following the gradual ascent from 9 hours in January to 10 hours in February and 11 hours in March, April marks a pivotal moment where daylight truly blossoms. The trend continues into May, with daylight peaking at 14 hours. This rhythm of extending daylight not only enhances the vibrancy of the region's stunning landscapes but also invites residents and visitors alike to bask in the beauty of longer, sun-filled days.

Average Daylight Hours in Santarem for April

The chart illustrates the variation in daylight duration in Santarem throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 43m11h 58m13h 15m14h 20m14h 52m14h 35m13h 37m12h 24m11h 7m10h9h 26m
Data source: Santarem daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Santarem

In April, the winds in Santarem, Portugal tend to slow down, with an average speed of just 2.6 m/s (6 mph), marking it as the calmest month of the year. This gentle breeze contrasts with the preceding months of winter and early spring, which exhibit slightly higher wind speeds. Notably, as the weather warms into May, we witness a notable increase, with winds picking back up to 4.1 m/s (9 mph). This pattern suggests a transition, as the spring blooms give way to the livelier breezes of summer, creating a delightful interplay between serenity and vibrancy. Thus, April serves as a moment of reprieve, allowing both the landscape and its visitors to enjoy a brief pause before the warmer months usher in a more energetic atmosphere.

Average April Wind Speed in Santarem

The chart displays monthly wind speed patterns in Santarem, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.73.32.6 m/s4.14.14.74.13.33.13.23.9
Data source: Santarem April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Santarem Compares to Other Months

The weather in Santarem changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Santarem and find detailed weather information for every month.

April's weather is characterized by a warmer average temperature of 15°C (59°F), with highs reaching up to 30°C (86°F), making it feel quite spring-like compared to January. In contrast, January experiences cooler temperatures, averaging around 10°C (50°F), with a maximum of 21°C (69°F) and minimum lows of -3°C (26°F). While April sees more rainfall at 86 mm (3.4 in) over 11 days, January has significantly less precipitation at 38 mm (1.5 in) spread over just 5 days, though it is also marked by higher humidity levels of 85% compared to April's 70%. For more detailed insights, you can check out Santarem weather in January.

April weather in Santarem is generally warmer and wetter compared to February. With average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), April experiences a broader temperature range than February, which averages between 1°C (33°F) and 25°C (77°F). Additionally, April receives more precipitation, totaling 86 mm (3.4 in) across 11 days, compared to February's 54 mm (2.1 in) over 7 days. While humidity levels remain similar, hovering around 70% in April and 75% in February, the overall climate in April is more conducive to outdoor activities due to the higher temperatures. For further details on February weather, you may refer to Santarem weather in February.

In comparing March and April's weather, we see a noticeable warming trend as spring progresses. April boasts higher temperatures, with a minimum of 5°C (41°F) and an average of 15°C (59°F), compared to March's minimum of 3°C (38°F) and average of 13°C (56°F). While both months experience similar maximum temperatures, reaching 30°C (86°F) in April versus 28°C (82°F) in March, April also has slightly more precipitation at 86 mm (3.4 in) over 11 days, compared to March's 80 mm (3.1 in) across 8 days. The humidity levels show a slight decrease in April, averaging 70% compared to March's 72%. For further details about March's weather, you can check Santarem weather in March.

April and May showcase a notable shift in weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 15°C (59°F). The month sees considerable precipitation, with 86 mm (3.4 inches) falling over 11 days, contributing to a humidity level of 70%. In contrast, May experiences milder weather with minimum temperatures rising to 7°C (45°F), an average of 18°C (65°F), and maximums reaching up to 36°C (96°F). Additionally, precipitation drops significantly to 41 mm (1.6 inches) over only 5 days, maintaining the same humidity of 70%. For more detailed information about May weather, visit Santarem weather in May.

April and June present distinct weather patterns, reflecting the transition from spring to summer. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 15°C (59°F), along with a notable precipitation of 86 mm (3.4 in) over 11 days, contributing to humidity levels around 70%. In contrast, June warms up considerably, featuring a minimum of 10°C (50°F) and soaring to a maximum of 41°C (106°F), with an average of 20°C (68°F). Rainfall drops significantly to just 15 mm (0.6 in) over 4 days, and humidity decreases to 63%. For more details about the weather in June, check out Santarem weather in June.

April and July present contrasting weather patterns, showcasing the transition from spring to summer. In April, temperatures range from a chilly minimum of 5°C (41°F) to a comfortable maximum of 30°C (86°F), with an average of 15°C (59°F). The month is characterized by considerable precipitation, receiving about 86 mm (3.4 in) across 11 days, resulting in a humidity level of 70%. In stark contrast, July experiences significantly warmer temperatures, with a minimum of 13°C (56°F) and a maximum soaring to 40°C (104°F), averaging around 22°C (72°F). It is a much drier month, with only 3 mm (0.1 in) of rain over just one day, and humidity drops to 60%. For more details on the conditions during July, check Santarem weather in July.

April and August present quite contrasting weather conditions. In April, temperatures can range from a chilly minimum of 5°C (41°F) to a comfortable average of 15°C (59°F), peaking at a warm 30°C (86°F). The month also experiences considerable rainfall, with 86 mm (3.4 in) of precipitation spread over 11 days, leading to a higher humidity level of 70%. In comparison, August boasts a significantly warmer climate, with minimum temperatures not dropping below 13°C (56°F) and average daily highs reaching 22°C (72°F), while extreme highs can even soar to 43°C (110°F). Precipitation is minimal in August, with only 6 mm (0.2 in) falling over just one day, and humidity is lower at 60%. For detailed insights into specific weather patterns, check out Santarem weather in August.

April and September exhibit distinct weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 15°C (59°F). This month is characterized by higher precipitation, receiving about 86 mm (3.4 in) over 11 days, and a humidity level of 70%. In contrast, September enjoys warmer temperatures, with a minimum of 11°C (51°F), an average of 21°C (71°F), and a peak of 37°C (98°F). Additionally, September has significantly less rain, totaling 27 mm (1.1 in) over just 3 days, and slightly lower humidity at 67%. For more detailed information, you can check Santarem weather in September.

April and October offer distinct weather experiences. In April, temperatures range from a chilly minimum of 5°C (41°F) to a warm maximum of 30°C (86°F), with an average of 15°C (59°F). The month sees significant rainfall, accumulating to 86 mm (3.4 in) over 11 days, and the humidity hovers around 70%. In contrast, October's temperatures are slightly higher, with a minimum of 6°C (44°F) and a maximum reaching 36°C (97°F), averaging 18°C (65°F). Rainfall is less frequent in October, totaling 55 mm (2.2 in) over just 5 days, while humidity increases to 74%. For more details on the weather during this month, check out Santarem weather in October.

April and November showcase distinct weather characteristics, reflecting the transition between seasons. In April, temperatures range from a minimum of 5°C (41°F) to a pleasant average of 15°C (59°F), peaking at 30°C (86°F). This month typically sees about 86 mm (3.4 in) of precipitation over 11 days, with humidity levels around 70%. In contrast, November experiences slightly cooler temperatures, with a minimum of 3°C (38°F) and an average of 13°C (56°F), topping out at 25°C (78°F). Precipitation increases slightly to 89 mm (3.5 in), occurring over 10 days, and humidity rises to 83%. For more detailed insights, check Santarem weather in November.

April and December showcase striking contrasts in weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a warm average of 15°C (59°F), peaking at 30°C (86°F), while experiencing 86 mm (3.4 in) of precipitation over approximately 11 rainy days and maintaining a humidity level of 70%. In contrast, December presents cooler conditions with temperatures dipping to a minimum of -2°C (28°F), averaging 11°C (53°F), and reaching a maximum of 20°C (68°F). This month sees lower precipitation at 59 mm (2.3 in) across 8 days, coupled with higher humidity at 85%. For a closer look at the December climate, you can check out Santarem weather in December.

Compare Santarem's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Santarem

April in Santarem marks a transition from the cooler months to a more moderate climate, featuring mild daytime temperatures that occasionally rise to warm highs. While the month experiences an average of 11 days of rainfall, it remains significantly drier than the winter months, allowing for more outdoor activities. With humidity levels hovering around 70%, the atmosphere can feel comfortably fresh, enhancing the vibrancy of the landscape as spring takes hold. For a deeper understanding of what to expect throughout the year, explore the detailed information available at Santarem Climate.