January Weather in Guia, Portugal

Last updated: February 24, 2025

In January, Guia, Portugal experiences mild temperatures, with a maximum reaching 21°C (69°F) and an average of 10°C (50°F). Overnight, temperatures can dip to a minimum of -2°C (28°F), reflecting the coolness of winter nights. The region sees light precipitation, averaging 23 mm (0.9 in) over just 3 days, while relative humidity remains around 80%, contributing to a crisp yet refreshing atmosphere. Whether you're exploring the picturesque landscapes or enjoying the local culture, January in Guia offers a unique blend of winter charm and moderate conditions.

January Temperature in Guia

In January, Guia, Portugal experiences a charming winter with temperatures that range from a chilly -2°C (28°F) at night to a pleasant 21°C (69°F) during the day, showcasing a versatile climate. The average temperature hovers around 10°C (50°F), providing a comfortable ambiance for outdoor activities. As the month progresses into February, a subtle warming trend begins, with minimum temperatures rising slightly to 0°C (33°F) and daytime highs reaching up to 24°C (76°F). This gradual shift foreshadows the arrival of spring, as seen in March, when temperatures continue to climb, flanking the 13°C (56°F) mark on average. Overall, January provides a delightful snapshot of Guia's seasonal transition, offering a mix of frosty nights and pleasantly mild days that pave the way for warmer months ahead.

January Weather in Guia: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Guia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505456596670757773665753
Data source: Temperature data for Guia generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Guia

In January, Guia, Portugal experiences a relatively mild start to the year, with a modest precipitation amount of 23 mm (0.9 in) spread over just three days of rain. This marks one of the drier months in the region, especially when compared to February, which sees a significant uptick to 46 mm (1.8 in) over five days. As winter progresses into March and April, rainfall intensifies, peaking in March with 80 mm (3.2 in) across nine days. The trend indicates a shift from the drier early winter months to a pattern of increased precipitation as spring approaches, culminating in November and December which also see substantial rainfall, suggesting a transitional climate with distinct wet and dry phases.

January Precipitation Trends in Guia

The chart displays monthly precipitation patterns in Guia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec234680702583111325144
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Guia

In January, Guia, Portugal experiences a relatively high humidity level of 80%, setting the stage for the dampness that characterizes the winter months. This peak in humidity begins to decline in February to 73%, and continues to drop gradually, reaching a low of 67% during the summer months of June. As the year progresses, humidity levels begin to rise again, with October recording 75% and November increasing to 78%. Interestingly, December brings a return to 81%, mirroring January's conditions, which indicates a notable seasonal rhythm. Overall, the pattern showcases a significant dip during the warmer months while returning to the higher levels typical of winter.

January Average Humidity in Guia

This chart illustrates the average monthly humidity levels in Guia, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%74%71%69%69%67%69%68%71%75%78%81%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Guia

In Guia, Portugal, January brings a moderate UV Index of 3, indicating a relatively safe period for sun exposure with an approximate burn time of 30 minutes. As winter transitions into spring, the UV Index begins to climb, soaring to 5 in February and peaking at 7 by March. This upward trend continues, marking April and May with very high indexes of 9 and 10, respectively, where the burn time significantly decreases to just 15 minutes. June intensifies the call for sun protection, with an extreme Index of 11 and a critical burn time of only 10 minutes. The summer months maintain a strong UV presence, where values of 10 dominate in July and August. As the season shifts towards autumn, a gradual decline is observed, with September recording a 9 and October backing down to 7. By the year's end, November and December return to moderate levels, reinforcing the importance of vigilance throughout the year regardless of the season. For detailed UV index information, it’s essential to stay updated by visiting Guia UV Index.

Maximum UV Index Levels in Guia for January

The chart shows the monthly maximum UV Index (UVI) for Guia 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109743
Data source: Guia 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.

January Sunshine in Guia

In Guia, Portugal, January greets residents and visitors with 202 hours of sunshine, a gentle prelude to the more vibrant months to come. As the year unfolds, the days grow progressively brighter, peaking in the summer with 425 hours in July. The steady ascent from February's 248 hours to May’s 410 hours showcases the region's transition into a sun-drenched paradise, inviting outdoor adventures under clear blue skies. Even as summer wanes, the sunshine remains plentiful, with 397 hours shimmering in August and tapering off gently into the cooler months. Overall, the annual pattern reveals a captivating tapestry of light, where each season brings its unique brilliance to Guia's landscape.

Monthly Sunshine Duration in Guia: January Highlighted

The January sunshine duration represents the total number of hours Guia experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec202h248h308h359h410h412h425h397h351h323h249h244h
Data source: Guia January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Guia During January

In January, Guia, Portugal enjoys a 44% chance of sunny weather, setting a promising tone for the year ahead. This percentage marks a significant contrast to the deeper winter months, as the likelihood of sunshine gradually improves through February, which drops to 23%, highlighting the winter's often gray skies. As spring approaches, the weather becomes more favorable, with March soaring to 59%, paving the way for brighter days. This upward trend continues into May and June, reaching an impressive 64% and a remarkably sunny 79%, offering an enticing glimpse of the vibrant summer ahead. The gradual increase from January to mid-summer emphasizes Guia's appeal as a destination where winter transitions glimmer with potential, beckoning sun-seekers to enjoy its mild charm.

Percentage of Sunny Days in January in Guia

The chart illustrates the percentage of sunny days in Guia throughout the year, with January 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 Guia experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%23%59%36%64%79%90%86%66%58%73%46%
Data source: Guia January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Guia in January

In Guia, Portugal, January marks the beginning of the year with 9 hours of daylight, slowly increasing as the months unfold. By February, the daylight stretches to 10 hours, heralding the gradual approach of spring. This upward trend continues, reaching 11 hours in March and escalating to an inviting 13 hours in April. As May brings 14 hours of daylight, both residents and visitors revel in the longer, sunnier days, a peak that lingers through June and July. However, as summer wanes, daylight begins to recede, with August offering 13 hours before the gradual decline resumes. By September, daylight decreases to 12 hours, continuing its descent through the autumn months until it settles back at 9 hours in December. This rhythmic ebb and flow of daylight in Guia illustrates the beautiful seasonal cycle, inviting everyone to embrace the warmth and light of each transition.

Average Daylight Hours in Guia for January

The chart illustrates the variation in daylight duration in Guia throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 54m10h 48m11h 58m13h 10m14h 10m14h 40m14h 24m13h 31m12h 22m11h 11m10h 9m9h 37m
Data source: Guia daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Guia

January in Guia, Portugal, welcomes visitors with a gentle breeze, boasting an average wind speed of 3.5 m/s (8 mph). This tranquil start to the year sets the tone for a month that typically precedes a gradual increase in wind intensity as spring approaches. Notably, February sees a slight uptick to 3.8 m/s (9 mph), hinting at the more dynamic weather patterns to come. As the year unfolds, January's calm winds give way to the more robust gusts of July, which peak at 4.2 m/s (9 mph), demonstrating a clear trend of increasing wind speed through the warmer months. As the seasons shift, the consistency of wind patterns in Guia adds a unique charm, making it an inviting destination for those who appreciate the subtleties of coastal breezes.

Average January Wind Speed in Guia

The chart displays monthly wind speed patterns in Guia, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.5 m/s3.83.43.24.03.64.23.63.23.23.34.1
Data source: Guia January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Guia Compares to Other Months

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

In January, the weather tends to be cooler, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 21°C (69°F) and an average of 10°C (50°F). Precipitation is relatively low, with only 23 mm (0.9 in) over about 3 days, and the humidity levels are higher at 80%.

In contrast, February brings milder conditions, with temperatures starting at a minimum of 0°C (33°F) and peaking at 24°C (76°F), averaging around 12°C (54°F). However, it also experiences increased precipitation, totaling 46 mm (1.8 in) across 5 days, alongside a decrease in humidity to 73%. For more detailed insights on February weather, you can check Guia weather in February.

In January, temperatures range from a chilly minimum of -2°C (28°F) to a mild maximum of 21°C (69°F), with an average temperature of 10°C (50°F). The month sees relatively low precipitation, with only 23 mm (0.9 in) over about 3 days, contributing to a humid atmosphere at 80%. In contrast, March experiences warmer weather, with minimum temperatures starting at 2°C (36°F) and maximums reaching 27°C (81°F). The average temperature rises to 13°C (56°F), but the increase in warmth comes with significantly more rainfall, totaling 80 mm (3.2 in) over 9 days, and a lower humidity of 71%. For more detailed insights into March weather, visit Guia weather in March.

January and April present distinct contrasts in weather patterns. In January, temperatures range from a chilly minimum of -2°C (28°F) to a comfortable maximum of 21°C (69°F), with an average of 10°C (50°F). The month experiences relatively low precipitation at 23 mm (0.9 in) and maintains a high humidity level of 80%. In stark comparison, April sees warmer temperatures, with a minimum of 6°C (43°F) and a maximum soaring to 29°C (84°F), resulting in an average of 15°C (59°F). However, April is more humid and rainier, with precipitation totaling 70 mm (2.8 in) falling over 12 days, and humidity levels dropping slightly to 69%. For a detailed overview of weather conditions in April, you can check Guia weather in April.

January weather is characterized by cooler temperatures, with a minimum of -2°C (28°F) and an average of 10°C (50°F), making it a chilly month. In contrast, May sees a significant warm-up, with temperatures ranging from a minimum of 6°C (43°F) to a comfortable average of 19°C (67°F) and a maximum reaching 34°C (94°F). Precipitation levels are slightly higher in May at 25 mm (1.0 in) over five days, compared to January's 23 mm (0.9 in) over just three days, while humidity levels are also lower in May at 69%, compared to 80% in January. For a detailed look at weather conditions, you can check out Guia weather in May.

January's weather is characterized by cooler temperatures, with minimums dipping to -2°C (28°F) and average highs reaching around 21°C (69°F). This month typically sees about 23 mm (0.9 in) of precipitation spread over three days, accompanied by high humidity levels of 80%. In contrast, June offers a significant warm-up, with minimum temperatures starting at 10°C (51°F) and maximums soaring up to 40°C (105°F). This month experiences much lower precipitation, with only 8 mm (0.3 in) over two days and a drop in humidity to 67%. For more detailed information, check out Guia weather in June.

The weather in January and July presents a stark contrast, showcasing the seasonal variations. In January, temperatures range from a chilly minimum of -2°C (28°F) to a comfortable average of 10°C (50°F), peaking at 21°C (69°F). This month experiences about 23 mm (0.9 in) of precipitation, with rain falling on approximately 3 days and humidity levels around 80%.

In sharp contrast, July brings a significant rise in temperature, with a minimum of 12°C (55°F) and an average of 24°C (75°F), reaching highs of up to 40°C (105°F). With only 3 mm (0.1 in) of precipitation and no rainy days, July enjoys a much drier climate, accompanied by lower humidity at 69%. For more detailed information, you can check this link: Guia weather in July.

In January, the weather is characterized by cooler temperatures, with a minimum of -2°C (28°F) and an average of 10°C (50°F), peaking at a comfortable 21°C (69°F). The month sees 23 mm (0.9 in) of precipitation over three days and high humidity levels at 80%. In stark contrast, August experiences significantly warmer conditions, with a minimum of 14°C (57°F) and an average temperature of 25°C (77°F), soaring to a maximum of 44°C (111°F). Precipitation is virtually absent in August, with only 1 mm (0.0 in) recorded on no rainy days and humidity dropping to a more comfortable 68%. For those interested in more details about the weather in August, you can check Guia weather in August.

In January, the weather is notably colder with minimum temperatures dropping to -2°C (28°F), while average highs reach only 21°C (69°F). The month sees around 23 mm (0.9 in) of precipitation spread over approximately 3 days and maintains a high humidity level of 80%. In contrast, September offers significantly warmer conditions, with minimum temperatures around 11°C (52°F) and average maximums soaring to 37°C (99°F). Precipitation is less frequent, totaling just 11 mm (0.4 in) on about 1 day, and humidity decreases slightly to 71%. For those interested in the weather during this time, more details can be found in the Guia weather in September.

In January, the weather is noticeably cooler, with minimum temperatures dropping to -2°C (28°F) and averaging around 10°C (50°F), while reaching a maximum of 21°C (69°F). The month experiences about 23 mm (0.9 in) of precipitation over three days, accompanied by high humidity levels of around 80%. In contrast, October offers milder temperatures, starting from a minimum of 6°C (43°F) to an average of 19°C (67°F), peaking at 34°C (94°F). It sees slightly more precipitation at 32 mm (1.3 in) over four days, but with lower humidity at 75%. For more detailed information about the October weather, you can visit Guia weather in October.

January and November exhibit distinct weather patterns. In January, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant maximum of 21°C (69°F), with an average of 10°C (50°F). The month typically experiences only 23 mm (0.9 in) of precipitation over about 3 days, accompanied by a relatively high humidity level of 80%. In contrast, November showcases milder conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 24°C (76°F) and averaging 14°C (58°F). It is also wetter than January, receiving 51 mm (2.0 in) of rain spread over 7 days, while humidity remains slightly lower at 78%. For more insights into the weather trends, visit Guia weather in November.

In December, temperatures range from a minimum of 0°C (32°F) to a maximum of 22°C (71°F), with an average temperature of 12°C (54°F). The month experiences more precipitation, totaling 44 mm (1.7 in) over about 5 days, and humidity levels are consistent at 81%. In contrast, January presents cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 21°C (69°F), averaging 10°C (50°F). January also sees lower precipitation at 23 mm (0.9 in) over 3 days and slightly lower humidity at 80%. For a more detailed overview of the weather in December, you can refer to Guia weather in December.

Compare Guia's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Guia

January in Guia offers a refreshing contrast to the warmer months, with cooler temperatures that average around 10°C (50°F), complemented by crisp highs of 21°C (69°F) and lows dipping to a brisk -2°C (28°F). This month also brings a touch of moisture, as the 23 mm (0.9 in) of precipitation is typically spread over just three days, making the air feel a bit more humid at 80%. While other months bask in the sun, January embraces a milder climate, perfect for those seeking a serene winter escape. For a deeper dive into the year-round weather patterns, explore Guia Climate.