January Weather in Castro, Chile

Last updated: August 21, 2025

January in Castro, Chile, showcases a diverse climate experience, with maximum temperatures peaking at 29°C (84°F), perfect for those seeking warmth amid the summer season. The average temperature hovers around a comfortable 14°C (58°F), while the minimum can dip to a brisk 2°C (37°F) during cooler nights. Visitors can anticipate 49 mm (1.9 in) of precipitation spread across 9 days, contributing to the lush landscapes surrounding the city. Humidity remains high at 83%, adding a tropical feel to the vibrant atmosphere. Whether exploring the stunning natural beauty or enjoying local culture, January presents a unique blend of warm days and refreshing showers in Castro.

January Temperature in Castro

In Castro, Chile, January emerges as a vibrant month, showcasing a delightful range of temperatures. With a minimum of 2°C (37°F) and soaring up to a pleasant 29°C (84°F), the average temperature settles comfortably around 14°C (58°F). This balance between cool nights and warm days invites visitors to bask in the summer sun while also enjoying the refreshing evenings. As the seasons transition in February, temperatures slightly increase, notably pushing daytime highs to a balmy 35°C (95°F). However, as the year progresses into the cooler months from March to July, temperatures gradually drop, with averages sinking to 7°C (45°F) by June. The shift underscores a general trend of milder summers and crisper winters in Castro, making it a unique destination for those who appreciate a wide seasonal range.

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

The chart illustrates January temperature patterns in Castro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castro, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec585955524845444547495357
Data source: Temperature data for Castro 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 Castro

In January, Castro, Chile, experiences a modest precipitation of 49 mm (1.9 in) spread across approximately 9 days, setting the stage for the more abundant rainfall that follows in the coming months. As summer transitions into autumn, the precipitation gradually increases, peaking in June with a significant 207 mm (8.2 in) over 21 days. The trend reveals a clear seasonal shift, highlighting the allure of the Pacific's influence, which brings wetter conditions as the year progresses. This pattern accentuates Castro's lush landscapes, especially during the winter months when rainfall is most pronounced, making a stark contrast to the lighter, yet pleasantly refreshing showers of January.

January Precipitation Trends in Castro

The chart displays monthly precipitation patterns in Castro, 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 Castro, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec49408312317320716520913513210769
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Castro

January in Castro, Chile, welcomes the new year with a humidity level of 83%, setting a precedent for the slightly moist coastal climate that follows. As summer progresses into February, humidity increases to 85%, hinting at the warming season's gradual embrace. March sees a slight dip back to 82%, but from April onwards, a trend of elevated moisture settles in, with levels stabilizing between 86% and 87% through the winter months and into early fall. This consistent humidity creates a rich, vibrant environment that characterizes Castro's lush landscapes, showcasing the enduring influence of the Pacific Ocean on the local weather patterns. Despite minor fluctuations, Castro's humidity remains a defining feature of its climate throughout the year.

January Average Humidity in Castro

This chart illustrates the average monthly humidity levels in Castro, 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 Castro is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%85%82%87%87%86%87%87%86%84%82%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Castro

In January, Castro, Chile experiences an extreme UV Index of 13, with a quick burn time of just 10 minutes, making sunscreen essential for outdoor activities. This trend of high UV levels continues into February, maintaining an equally intense Index of 12. As summer gives way to autumn, the UV Index begins to decline, dropping to 9 in March, which is still categorized as very high, allowing for a slightly longer burn time of 15 minutes. By April, the Index decreases to 6, transitioning to a high exposure category with a burn time extending to 25 minutes. The cooler months from May to July see a further reduction, reaching a moderate level of 3 and 2 respectively, where exposure becomes safer at 30 to 45 minutes. As spring approaches, the UV Index rises again, peaking at 13 in both November and December before the cycle restarts. For a detailed look at Castro's UV trends, visit Castro UV Index.

Maximum UV Index Levels in Castro for January

The chart shows the monthly maximum UV Index (UVI) for Castro 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 Castro typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963224681313
Data source: Castro 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 Castro

In January, Castro, Chile basks in the glow of approximately 284 hours of sunshine, setting a vibrant tone for the summer. This sun-drenched month is a precursor to an even brighter February, which boasts 306 hours of sunlight, making it the sunniest month of the year. As we move into March, the hours only slightly dip to 301, maintaining a generous supply of daylight. However, a noticeable decline begins in April, with sunshine hours plummeting to 216. The trend continues through the colder months, hitting a low of just 141 hours in June. Interestingly, by the time we reach the end of the year, December revives the sun-filled experience with a striking 346 hours. Overall, Castro experiences a clear seasonal pattern, where summer months bring abundant sunshine, only to give way to the subdued light of winter, before finally rejuvenating in the closing month of the year.

Monthly Sunshine Duration in Castro: January Highlighted

The January sunshine duration represents the total number of hours Castro 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.
JanFebMarAprMayJunJulAugSepOctNovDec284h306h301h216h189h141h175h193h243h281h290h346h
Data source: Castro January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castro During January

In Castro, Chile, January brings a 47% chance of sunny weather, marking it as a month of moderate sunshine compared to the rest of the year. This likelihood is notably lower than the following month, February, which boasts a 65% chance, making it the sunniest month. As the seasons progress into autumn, the likelihood of sun declines significantly, plummeting to just 17% by April. Interestingly, the weather begins to improve again as the year closes, with December experiencing a 53% chance of sunshine. Overall, while January offers a decent chance for sun-soaked days, the trend indicates that summer's peak brightness truly arrives in February.

Percentage of Sunny Days in January in Castro

The chart illustrates the percentage of sunny days in Castro 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 Castro experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%65%50%17%28%33%24%25%30%36%31%53%
Data source: Castro January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castro in January

In Castro, Chile, January shines as the month with the longest daylight, offering a generous 14 hours of sunlight, perfect for outdoor adventures and exploration. As the summer progresses into February, daylight slightly dwindles to 13 hours, signaling the gradual transition towards autumn. March continues this trend with 12 hours of daylight, while April sees a more pronounced decrease to 10 hours. The shortest days unfold from May through July, each providing only 9 hours of daylight, inviting a cozy atmosphere during the winter months. However, the cycle of light begins to shift again in August, as daylight inches back to 10 hours, leading to a slow but steady increase through the spring months. By November, the days stretch back to 14 hours, culminating in December's peak of 15 hours, showcasing the vibrant renewal of light with the arrival of summer once more. This rhythm of daylight exemplifies Castro's distinct seasonal cycle, reflecting both the beauty and dynamism of its natural environment.

Average Daylight Hours in Castro for January

The chart illustrates the variation in daylight duration in Castro throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 52m13h 43m12h 18m10h 51m9h 40m9h 4m9h 24m10h 27m11h 49m13h 16m14h 34m15h 14m
Data source: Castro daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Castro

In Castro, Chile, the January winds whisper gently, averaging around 2.4 m/s (5 mph), making it one of the calmer months of the year. As the seasons progress, a subtle upward trend in wind speed emerges, peaking in August at 3.3 m/s (7 mph). This gradual increase points towards a pattern where late winter and early spring bring more brisk breezes, with May and August both recording winds of 3.0 m/s (7 mph). Despite some fluctuations in the fall and winter months, including a return to lower averages like 2.6 m/s (6 mph) in November, the overall wind dynamics in Castro showcase a seasonal rhythm that enhances the coastal landscape's charm.

Average January Wind Speed in Castro

The chart displays monthly wind speed patterns in Castro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.4 m/s2.72.52.63.02.92.93.32.82.92.62.9
Data source: Castro January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Castro Compares to Other Months

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

In January, the weather in Castro typically features a minimum temperature of 2°C (37°F) and can rise to a pleasant average of 14°C (58°F), reaching a maximum of 29°C (84°F). The month experiences approximately 49 mm (1.9 in) of precipitation over about 9 days, with humidity averaging 83%.

In contrast, February sees slightly warmer temperatures, with a minimum of 4°C (40°F) and an average of 15°C (60°F), peaking at a notably higher maximum of 35°C (95°F). Precipitation decreases to around 40 mm (1.6 in) over 6 days, while humidity increases marginally to 85%. For more details on February weather in Castro, you can visit Castro weather in February.

In comparing the weather between January and March, we observe some notable similarities and differences. Both months experience a minimum temperature of around 2°C (37°F) and maximum temperatures peaking at 29°C (84°F). However, January has a slightly higher average temperature of 14°C (58°F) compared to March's 13°C (56°F). Precipitation levels are higher in March, with 82 mm (3.2 in) over 11 days, compared to January's 49 mm (1.9 in) over 9 days. Humidity remains relatively consistent, with January at 83% and March at 82%. For a detailed look at March weather, you can check Castro weather in March.

In January, temperatures in Castro range from a minimum of 2°C (37°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). The month typically sees 49 mm (1.9 in) of precipitation over about 9 days, and humidity levels sit at 83%. In contrast, April brings cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 22°C (72°F), averaging 11°C (52°F). Precipitation significantly increases to 123 mm (4.8 in) over 15 days, coupled with slightly higher humidity at 87%. For more details on April weather, visit Castro weather in April.

January and May present contrasting weather patterns. In January, temperatures range from a minimum of 2°C (37°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F), creating a warm climate. Precipitation is relatively low, at 49 mm (1.9 in) over about nine days, and humidity sits at 83%. Conversely, May experiences cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 18°C (65°F), averaging only 9°C (49°F). Furthermore, it sees significantly more rainfall, totaling 173 mm (6.8 in) over 17 days, and a slight increase in humidity to 87%. For more detailed information, you can visit Castro weather in May.

In January, the weather features a comfortable average temperature of 14°C (58°F), with maximums reaching up to 29°C (84°F), accompanied by relatively low precipitation of 49 mm (1.9 in) over 9 days and a humidity level of 83%. In stark contrast, June experiences much cooler conditions, where temperatures average around 7°C (45°F) and can dip to a minimum of -3°C (26°F). Additionally, June is significantly wetter, with precipitation totaling 207 mm (8.2 in) over 21 days and a slightly higher humidity level of 86%. For more detailed insights, you can check Castro weather in June.

The weather in January is significantly warmer than in July, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 29°C (84°F) and an average of 14°C (58°F). In contrast, July experiences much cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 13°C (56°F), averaging at only 7°C (45°F). January sees less precipitation at 49 mm (1.9 in) over 9 days, while July is considerably wetter, receiving 165 mm (6.5 in) across 18 days. Both months have high humidity levels, with January at 83% and July slightly higher at 87%. For more detailed information on July conditions, you can visit Castro weather in July.

January and August present striking contrasts in weather. In January, temperatures typically range from a mild 14°C (58°F) on average, with a maximum of 29°C (84°F) and a minimum of 2°C (37°F). This month sees less precipitation, totaling 49 mm (1.9 in) over about 9 days, and humidity levels are relatively high at 83%. In contrast, August experiences much cooler temperatures, with an average of only 7°C (46°F) and a maximum of 15°C (59°F), alongside a chilling minimum of -3°C (27°F). This month is also significantly wetter, with 209 mm (8.2 in) of rainfall spread across 20 days and slightly higher humidity at 87%. For more detailed weather information, you can visit Castro weather in August.

In January, the weather is quite warm, with average temperatures ranging from a minimum of 2°C (37°F) to a maximum of 29°C (84°F), and relatively low precipitation of 49 mm (1.9 in) over about 9 days, resulting in a humidity level of 83%. In contrast, September brings a significant shift, featuring cooler temperatures with a minimum of -1°C (30°F) and a maximum of 19°C (66°F). This month experiences much higher precipitation at 135 mm (5.3 in) across 16 days, along with a slightly higher humidity of 86%. For more detailed information, visit Castro weather in September.

In January, temperatures in Castro range from a minimum of 2°C (37°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F), while October sees cooler conditions with temperatures ranging from -3°C (27°F) to 22°C (72°F) and an average of 9°C (49°F). Precipitation levels in January are relatively low at 49 mm (1.9 in) over 9 days, compared to October's 132 mm (5.2 in) which falls over 18 days, indicating a wetter climate during the latter month. Additionally, humidity levels remain high in both months, with January at 83% and October slightly higher at 84%. For more detailed weather insights, you can visit Castro weather in October.

In January, the weather tends to be warmer, with average temperatures ranging from a minimum of 2°C (37°F) to a maximum of 29°C (84°F), while November sees slightly cooler temperatures, with averages between 2°C (35°F) and 24°C (76°F). Additionally, January experiences less precipitation, at 49 mm (1.9 in) over about 9 days, compared to the wetter November, which receives 107 mm (4.2 in) across 13 days. Humidity levels are quite similar, with January at 83% and November slightly lower at 82%. For more detailed insights, check out Castro weather in November.

In comparing the weather of January and December, we observe that both months experience similar temperature ranges, with January having a minimum temperature of 2°C (37°F) and December slightly warmer at 4°C (40°F). The average temperature remains consistent at 14°C (58°F) for both months, while the maximum temperature peaks at an identical 29°C (84°F). However, December sees higher precipitation levels, totaling 69 mm (2.7 in) over 12 days, compared to January's 49 mm (1.9 in) over 9 days. The humidity is slightly higher in December at 84%, compared to January's 83%. For more details on the December weather, you can visit Castro weather in December.

Compare Castro's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Castro

As January unfolds in Castro, temperatures rise, offering a warm contrast to the cooler months preceding it. With an average of 14°C and peaks hitting 29°C, the weather invites outdoor activities while still allowing for comfortable evenings. However, be prepared for intermittent rain, as 49 mm of precipitation falls over around nine days, contributing to a humid atmosphere that averages 83%. In essence, January stands out as a vibrant month, bridging the coolness of winter and the warmth of summer, making it a unique time to experience the beauty of Castro. For more insights into this captivating climate, check out Castro Climate.