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January Weather in Sao Mateus, Portugal

Last updated: August 27, 2025

In Sao Mateus, Portugal, the average temperature in January is a comfortable 16°C (61°F), with a minimum of 11°C (52°F) and a maximum of 19°C (66°F). Expect moderate rainfall, with an estimated 78 mm (3.1 in) over 11 days throughout the month. Humidity levels can be quite high, averaging around 84%, making it a moist and inviting time of year.

January Temperature in Sao Mateus

In January in Sao Mateus, the average temperature is 16°C (61°F). The maximum can reach 19°C (66°F), while the minimum can be as low as 11°C (52°F). This mild climate makes Sao Mateus an ideal destination for travelers seeking pleasant weather during this time.

January Weather in Sao Mateus: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sao Mateus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Mateus, January typically has an average temperature of 16°C (61°F), with highs reaching up to 19°C (66°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec615959596265697271686462
Data source: Temperature data for Sao Mateus 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.

January Precipitation in Sao Mateus

In Sao Mateus in January, the precipitation amount is 78 mm (3.1 in) over the course of 11 days.

January Precipitation Trends in Sao Mateus

The chart displays monthly precipitation patterns in Sao Mateus, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Sao Mateus, January typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec78774976544322474683107121
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Sao Mateus

In Sao Mateus in January, humidity is 84%. With an average temperature of 16°C (61°F), this humidity feels like a blanket of warmth, making travel slightly sticky but overall comfortable, as long as you stay hydrated and take breaks in the shade.

January Average Humidity in Sao Mateus

This chart illustrates the average monthly humidity levels in Sao Mateus, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Sao Mateus is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%84%84%83%84%86%82%82%79%80%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sao Mateus

In Sao Mateus in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Sao Mateus, you can check the information here.

Maximum UV Index Levels in Sao Mateus for January

The chart shows the monthly maximum UV Index (UVI) for Sao Mateus in January, 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. In January, the maximum UV index in Sao Mateus typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109743
Data source: Sao Mateus January 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.

How January Weather in Sao Mateus Compares to Other Months

Weather in Sao Mateus varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sao Mateus, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sao Mateus, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)78 mm (3.1 inches)84%moderate
February Weather15°C (59°F)77 mm (3.0 inches)83%moderate
March Weather15°C (59°F)49 mm (1.9 inches)84%high
April Weather15°C (60°F)76 mm (3.0 inches)84%very high
May Weather16°C (62°F)54 mm (2.1 inches)83%very high
June Weather19°C (66°F)43 mm (1.7 inches)84%extreme
July Weather21°C (70°F)22 mm (0.8 inches)86%very high
August Weather22°C (72°F)47 mm (1.9 inches)82%very high
September Weather22°C (71°F)45 mm (1.8 inches)82%very high
October Weather20°C (69°F)83 mm (3.3 inches)79%high
November Weather18°C (65°F)107 mm (4.2 inches)80%moderate
December Weather17°C (63°F)121 mm (4.8 inches)85%moderate

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