Last updated: August 21, 2025
January in São João del Rei, Brazil, presents a warm and humid climate, characteristic of its summer season. Daily temperatures soar to a maximum of 31°C (89°F), with an inviting average of 23°C (73°F). While the evenings can be more refreshing, dipping to a minimum of 16°C (62°F), expect a splash of rain throughout the month, contributing to an accumulated precipitation of 122 mm (4.8 in) over approximately 14 days. The humidity levels hover around an impressive 83%, enhancing the lush landscapes that this enchanting city is known for.
In January, Sao Joao del Rei basks in warm temperatures, with daily averages around 23°C (73°F), peaking at a pleasant 31°C (89°F). Nights cool down to a comfortable 16°C (62°F), providing a refreshing contrast to the daytime warmth. This pattern of rising temperatures continues into February, when both the minimum and maximum readings slightly increase, reaching up to 33°C (91°F). As the months progress into autumn, the climate begins to moderate, with March and April experiencing lower averages of 22°C (72°F) and 20°C (69°F) respectively. By mid-year, the temperatures continue their downward trend, showcasing the beautiful seasonal transition, with July’s cooler minimums dipping to 5°C (42°F). Overall, while January remains a vibrant and warm month, it foreshadows the cooler weather that characterizes Sao Joao del Rei's later months.
In January, Sao Joao del Rei experiences a notable amount of rainfall, with 122 mm (4.8 in) accumulated over 14 days. This sets the tone for the wet season, as precipitation gradually increases in February to 163 mm (6.4 in), showcasing a trend of rising rainfall. As the months progress, rainfall tends to vary substantially; March sees a decrease to 102 mm (4.0 in), followed by a significant drop to 42 mm (1.7 in) in April. The dry months of May through July highlight a stark reduction in precipitation, with July recording no rainfall at all. However, a resurgence occurs in the latter part of the year, particularly in November with 169 mm (6.7 in) and December reaching its peak at 211 mm (8.3 in). Overall, January's precipitation amount signifies the beginning of a dynamic rainfall pattern that fluctuates considerably, reflecting the seasonal shifts experienced in this charming Brazilian town.
In January, Sao Joao del Rei experiences a high humidity level of 83%, setting the tone for a summer characterized by moisture-laden air. This trend continues into February, where humidity inches up slightly to 85%, before peaking at 87% in March, making it the most humid month of the year. As April rolls in, humidity remains elevated at 86%, but the following months witness a gradual decline. By July, the humidity drops to 77%, signaling a shift towards drier conditions that persist through August and September, where levels plummet to 72% and 63%, respectively. The transition into the drier months culminates in October at a comfortable 48%, before a slight recovery in late fall. Overall, January’s humidity serves as a precursor to a seasonal cycle that fluctuates dramatically between the lush humidity of summer and the refreshing dryness of autumn.
In January, Sao Joao del Rei experiences an extreme UV Index of 17, indicating a high risk of harm from unprotected sun exposure, with a burn time of just 10 minutes. This level of intensity continues throughout the summer months, with February and March closely following at 16 and 14, respectively, while maintaining the same rapid burn time. As the seasons transition into April, a slight decrease in the UV Index to 12 is noted, yet it remains in the extreme category. The trend shifts in May, where the UV Index drops to 9—a very high reading—with an extended burn time of 15 minutes. This pattern continues into the cooler months, where values like 7 in June and higher levels again in July and August reflect a dynamic climate, yet still considerable exposure risks persist year-round. Notably, the UV Index climbs back to 12 in September and peaks again in November, before wrapping up the year at 16 in December. For a detailed account of Sao Joao del Rei's UV trends, check out the Sao Joao del Rei UV Index.
UV Risk Categories
January in São João del Rei, Brazil, greets visitors with an impressive 262 hours of sunshine, setting the tone for the year ahead. As summer unfolds, February sees a slight increase to 264 hours, while March shines the brightest, boasting a radiant 313 hours of glorious sunlight. This trend of abundant light continues into April and May, with 291 and 288 hours respectively, creating ideal conditions for exploration. The sun still maintains its presence in the following months, although with a gradual decline, yielding 283 hours in June and 308 hours in July—perfect for enjoying the lush landscapes of the region. By August and September, visitors can bask in 295 and 310 hours of sunshine, before the hours dip slightly again in the latter part of the year, with December wrapping up at 290 hours. Overall, January's bright start signals a stunning year filled with vibrant, sun-kissed days in this charming Brazilian town.
In Sao Joao del Rei, Brazil, the likelihood of sunny weather reaches 27% in January, making it a relatively modest start to the year in terms of sunshine. As the months progress, a noticeable trend emerges; the chances of clear skies gradually improve, peaking at a remarkable 80% in July. This mid-year sunshine contrasts sharply with the cloudier days of October, which sees a mere 15% likelihood of sun. Overall, while January may not boast the highest sun probabilities, it sets the stage for brighter days ahead as summer unfolds.
In Sao João del Rei, Brazil, January shines with a generous 13 hours of daylight, marking the year's peak for sunlit moments. As the months progress into February and March, daylight remains steady at 12 hours, creating a balanced transition into the fall. By April and May, daylight decreases to 11 hours, heralding the cooler months ahead. The decline continues through June and July, where the days shorten to 10 hours, wrapping the region in a cozy twilight. However, as August sets in, daylight begins to extend again, stabilizing at 11 hours through September. As the year draws to a close, both October and November return to 12 and 13 hours respectively, completing a rhythmic cycle of sunlight that reflects the vibrant shifts of the seasons in this picturesque Brazilian locale.
In Sao Joao del Rei, Brazil, the January winds gently greet the new year with an average speed of 2.3 m/s (5 mph), setting a tranquil tone that remains consistent throughout early summer. As the months progress, wind speeds dip slightly in February and March before gradually increasing to 2.5 m/s (6 mph) in April. The breezes become more animated in August and September, reaching 3.0 m/s (7 mph), ultimately peaking in October at 3.3 m/s (7 mph). This trend suggests that the summer months transition into a more blustery autumn, only to wane again in December. Overall, while January offers serene gusts, the gradual escalation in winds throughout the year hints at the dynamic atmospheric shifts characteristic of this charming Brazilian locale.
Weather in Sao Joao del Rei varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sao Joao del Rei, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February have relatively similar weather patterns, but there are noticeable differences in temperature and precipitation. In January, the temperatures range from a minimum of 16°C (62°F) to a maximum of 31°C (89°F), with an average of 23°C (73°F). The month sees about 122 mm (4.8 in) of precipitation over 14 days and maintains a humidity level of 83%. In contrast, February experiences slightly cooler minimum temperatures at 15°C (59°F) and higher maximum temperatures reaching 33°C (91°F), with an average of 22°C (72°F). Precipitation also increases in February to 163 mm (6.4 in) over 17 days, resulting in a slightly higher humidity level of 85%. For a more detailed look at February's weather, you can visit Sao Joao del Rei weather in February.
In January, the weather is typically warmer with an average temperature of 23°C (73°F), peaking at a max of 31°C (89°F). It experiences higher rainfall as well, with 122 mm (4.8 in) of precipitation spread across 14 days and a humidity level of 83%. In contrast, March sees slightly cooler temperatures, with an average of 22°C (72°F) and a minimum of 12°C (55°F). Rainfall decreases to 102 mm (4.0 in), although, notably, precipitation occurs on 15 days, resulting in increased humidity at 87%. For more detailed insights on March weather, you can visit Sao Joao del Rei weather in March.
In January, the temperatures in São João del Rei range from a minimum of 16°C (62°F) to a maximum of 31°C (89°F), with an average of 23°C (73°F). This month experiences significant rainfall, totaling 122 mm (4.8 in) over about 14 days, contributing to a high humidity level of 83%. In contrast, April presents milder conditions, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), and an average of 20°C (69°F). The precipitation drops substantially to 42 mm (1.7 in) across only 7 days, while humidity remains relatively high at 86%. For a more detailed look at April weather, you can visit Sao Joao del Rei weather in April.
January and May present distinctly different weather patterns. In January, the temperatures are significantly warmer, with a minimum of 16°C (62°F) and an average of 23°C (73°F), reaching a maximum of 31°C (89°F). This month also experiences considerable rainfall, averaging 122 mm (4.8 in) over 14 days, coupled with high humidity at 83%.
In contrast, May sees much cooler temperatures, with a minimum of 5°C (42°F) and an average of 18°C (65°F), peaking at 28°C (83°F). Precipitation drops dramatically to 25 mm (1.0 in) over just 4 days, while humidity remains relatively consistent at 82%. For more specific details on the weather patterns during this month, you can check out Sao Joao del Rei weather in May.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 31°C (89°F) and an average of 23°C (73°F). This month also experiences considerably higher precipitation, totaling 122 mm (4.8 in) over 14 days, coupled with a humidity level of 83%. In contrast, June presents a much cooler climate, with temperatures dipping to a minimum of 8°C (47°F) and showing an average of 18°C (64°F) and a maximum of 27°C (81°F). Rainfall is minimal in June, with only 12 mm (0.5 in) falling over just 2 days, and humidity remains relatively stable at 82%. For more details on the specific weather characteristics of June, check out Sao Joao del Rei weather in June.
In January, the weather in Sao Joao del Rei is characterized by warmer temperatures, with a minimum of 16°C (62°F) and an average of 23°C (73°F), peaking at a maximum of 31°C (89°F). This month also experiences significant rainfall, totaling 122 mm (4.8 in) over 14 days, and humidity levels are high at 83%. In stark contrast, July's climate is much cooler, featuring a minimum temperature of 5°C (42°F), an average of 16°C (62°F), and a maximum of 27°C (80°F). Remarkably, July sees minimal precipitation at only 5 mm (0.2 in) across 0 rainy days, and humidity drops to 77%. For a more detailed look at the weather in July, you can visit Sao Joao del Rei weather in July.
In January, the weather in Sao Joao del Rei is characterized by warm temperatures, with minimums around 16°C (62°F) and maximums reaching up to 31°C (89°F). The average temperature sits comfortably at 23°C (73°F), accompanied by substantial precipitation averaging 122 mm (4.8 in) over about 14 days, resulting in high humidity at 83%. In contrast, August experiences a significant drop in temperatures, with a minimum of 6°C (43°F) and an average of 17°C (64°F), while the maximum temperature is slightly lower at 30°C (85°F). Precipitation is minimal in August, totaling only 21 mm (0.8 in) over just 3 days, and humidity decreases to 72%. For a more detailed overview, check out Sao Joao del Rei weather in August.
January and September in Sao Joao del Rei present distinct weather patterns. In January, temperatures range from a minimum of 16°C (62°F) to a maximum of 31°C (89°F), with an average of 23°C (73°F). The month is characterized by higher precipitation, totaling 122 mm (4.8 in) across 14 days and a humidity level of 83%. In contrast, September experiences cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 33°C (92°F), averaging 21°C (69°F). This month sees significantly less rainfall, with only 37 mm (1.4 in) over 4 days and a lower humidity of 63%. For more detailed insights, check out the Sao Joao del Rei weather in September.
When comparing the weather between January and October, it's notable that January features warmer temperatures, with a minimum of 16°C (62°F) and an average of 23°C (73°F), peaking at 31°C (89°F). In contrast, October has cooler temperatures, starting at a minimum of 11°C (52°F) and averaging 21°C (70°F), but it can still reach up to 34°C (93°F) on warmer days. Precipitation levels are relatively similar, with January experiencing 122 mm (4.8 in) over 14 days compared to October's 109 mm (4.3 in) over the same number of days. Additionally, January boasts high humidity at 83%, while October sees a more comfortable 48%. For more detailed information, you can check Sao Joao del Rei weather in October.
In comparing the weather between January and November, January tends to be warmer overall, with average temperatures ranging from a minimum of 16°C (62°F) to a maximum of 31°C (89°F). In contrast, November experiences cooler temperatures, with a minimum of 10°C (51°F) and an average of 21°C (69°F), while both months share the same maximum of 31°C (88°F). Precipitation levels in November are higher, totaling 169 mm (6.7 in) across 19 days, compared to January's 122 mm (4.8 in) over 14 days. Additionally, November boasts a significantly lower humidity level of 61%, compared to January's 83%. For more detailed information about the weather in November, you can visit Sao Joao del Rei weather in November.
In comparing the weather of January and December, we notice that January experiences slightly warmer temperatures, with minimums of 16°C (62°F) compared to December's 13°C (56°F), and average highs remain consistent at 31°C (89°F) for both months. However, January sees less total precipitation, with 122 mm (4.8 in) falling over 14 days, whereas December has a higher rainfall of 211 mm (8.3 in) spread across 20 days. Interestingly, humidity levels are higher in January at 83%, in contrast to December's 68%. For more detailed insights on December weather, you can check Sao Joao del Rei weather in December.
In January, Sao Joao del Rei experiences its warmest temperatures of the year, with balmy days inviting exploration and outdoor activities. While the average daytime warmth is pleasant, there is a noticeable increase in humidity and precipitation, making it a month characterized by frequent rain showers. Unlike the cooler, drier months that precede and follow, January balances the allure of summer heat with the lush vitality that comes from its rainfall. This dynamic weather adds a unique charm to the region's landscapes, enhancing the vibrant scenery that attracts visitors year-round. For more details on the weather patterns throughout the year, check out Sao Joao del Rei Climate.