Last updated: August 21, 2025
In October, Guaiba, Brazil experiences a diverse range of weather, showcasing temperatures that soar up to a striking 37°C (100°F), accompanied by a pleasant average of 20°C (68°F). Nighttime brings cooler relief with minimum temperatures dipping to 9°C (49°F). The month is marked by 139 mm (5.5 in) of precipitation, spread over 13 days, which contributes to the city’s lush landscape. With humidity levels hovering around 85%, October in Guaiba offers a unique blend of warm days and refreshing rains, making it a vibrant time for both residents and visitors alike.
In October, Guaiba, Brazil, experiences a delightful transition in temperatures, marking a subtle shift towards warmer days as the year progresses. With minimums hovering around 9°C (49°F) and an average temperature of 20°C (68°F), the climate is pleasantly mild. The maximum temperature can soar up to 37°C (100°F), close to the peak summer figures seen in January and February, suggesting that while the heat remains intense, October offers a more comfortable balance between warmth and cooler nights. This trend of rising temperatures from the chillier winter months, with averages steadily increasing, makes October an inviting time for both locals and visitors to enjoy outdoor activities amidst the stunning natural beauty of Guaiba.
October in Guaíba, Brazil, brings a notable shift in precipitation patterns, marking one of the wetter months of the year. With an impressive 139 mm (5.5 in) of rainfall recorded over 13 days, October’s downpours are a part of the seasonal trend that typically begins in the spring. This increase in precipitation follows a particularly wet September, which saw 155 mm (6.1 in), while previous months like April and August were considerably drier, receiving 73 mm (2.9 in) and 70 mm (2.8 in) respectively. This progressive rise in rainfall from spring through early summer highlights Guaíba's climatic variability, emphasizing how the October rains not only sustain the verdant landscape but also signal the transition into the more humid summer months.
In Guaíba, Brazil, the October humidity reaches a notable 85%, nestled within a trend of elevated moisture that characterizes the latter part of the year. As summer transitions to spring, humidity begins to peak, climbing from a relatively comfortable 77% in January to a significant 87% in May. The months that follow, including October, maintain high levels, though a slight dip occurs in November. This gradual increase and stabilization of humidity levels reflect Guaíba's lush, tropical climate, providing a vivid backdrop for the city’s vibrant lifestyle. As we approach the end of the year, residents and visitors alike can expect the familiar wrap of humidity that defines this picturesque region.
As October rolls into Guaiba, Brazil, residents can expect an extreme UV Index of 12, necessitating quick action under the sun with just 10 minutes of safe exposure before burning. This month marks a return to the highest category of UV risk, similar to conditions seen at the start of the year. Following a brief dip in May and June, where the index reflected lower levels, October reminds us of the intensity of the sun as it heads toward summer. With another spike expected in November, it's crucial to stay informed and protect your skin. For detailed insights, check out the Guaiba UV Index.
UV Risk Categories
October in Guaiba, Brazil, boasts a delightful 274 hours of sunshine, making it a splendid time to soak in the vibrant atmosphere. As the year progresses, the trend shows that sunshine hours tend to peak in the latter half, with a notable jump to 316 hours in November and an impressive 361 hours by December. This gradual increase highlights the seasonal transition toward summer, where sunny days become more abundant and inviting. While January and February initially bring a promising start with 272 and 310 hours respectively, it's in the latter months that Guaiba truly shines, offering residents and visitors a warm embrace of sunshine as the year's end approaches.
In Guaíba, Brazil, the likelihood of sunny weather in October stands at 48%, making it a month of moderate sunshine compared to the rest of the year. As the seasons shift, October emerges from the relatively gloomy September, which only boasts a 30% chance of clear skies. Following the playful summer months of January and February, where sunshine peaks at 43% and 59% respectively, October maintains a balanced outlook. Interestingly, it closely mirrors the sunshine probability of both April and May, hinting at a mild transitional phase before the stronger sun returns in the late spring and summer. As you plan your October activities, expect intermittent sunshine and be ready to embrace the beauty of Guaíba's early spring atmosphere.
In Guaiba, Brazil, October marks a transition in daylight duration, where the hours of light begin to regain their strength after the shorter days of winter. The month offers about 12 hours of daylight, a notable increase compared to the preceding months. This rise aligns with the gradual lengthening observed from April's 11 hours to November's peak of 13 hours, showcasing a steady return to the longer days characteristic of the southern hemisphere's summer months. As the year progresses toward December, the trend suggests an inviting increase in daylight, promising more opportunities for outdoor exploration and enjoyment under the Brazilian sun.
As October unfolds in Guaiba, Brazil, the winds bring a refreshing change. The average wind speed reaches 3.3 m/s (7 mph), matching the gentle breezes of September and signaling a transition toward stronger gusts. Unlike the calmer months of the preceding summer, this time of year heralds a gradual increase in wind intensity, a trend that continues into November with an average of 3.4 m/s (8 mph). It’s a delightful period, where the air feels invigorating and the landscape begins to respond to the sweet embrace of the winds, setting the stage for the more robust currents of the approaching summer.
Weather in Guaiba varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Guaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present distinct weather patterns that highlight the transition from autumn to summer. In October, temperatures range from a minimum of 9°C (49°F) to a maximum of 37°C (100°F), with an average of 20°C (68°F) and significant precipitation amounting to 139 mm (5.5 in) over 13 days, alongside high humidity at 85%. In contrast, January features warmer weather with minimum temperatures of 15°C (58°F) and an average of 26°C (79°F), peaking at 39°C (103°F). Precipitation decreases to 93 mm (3.7 in) over 12 days, and humidity levels drop to 77%. For more detailed insights on January's climate, you can visit Guaiba weather in January.
October and February display contrasting weather patterns despite their proximity in the calendar year. In October, temperatures range from a minimum of 9°C (49°F) to a maximum of 37°C (100°F), with an average of 20°C (68°F). Additionally, the month sees considerable precipitation, totaling 139 mm (5.5 in) over 13 days, coupled with a high humidity of 85%. In contrast, February enjoys warmer temperatures, with a minimum of 14°C (58°F) and an average of 25°C (77°F), peaking at 38°C (100°F). The rainfall is slightly lower at 112 mm (4.4 in) across 11 days, alongside a reduced humidity of 79%. For more detailed insights into February weather, you can visit Guaiba weather in February.
In October, temperatures start to cool down with a minimum of 9°C (49°F) and an average high of 20°C (68°F), while March tends to be warmer, with minimum temperatures around 13°C (56°F) and an average high of 23°C (75°F). Both months can experience highs of up to 37-38°C (100°F), but October is generally more humid, with 85% humidity compared to March's 79%. Precipitation is relatively similar, with October receiving 139 mm (5.5 in) over 13 days and March slightly less with 109 mm (4.3 in) over 12 days. For more detailed weather insights, check out Guaiba weather in March.
When comparing the weather in October and April, both months exhibit mild temperatures but with notable differences in precipitation and humidity. October can be warmer, with average temperatures reaching 20°C (68°F) and maximums climbing up to 37°C (100°F). In contrast, April has a slightly cooler average of 21°C (71°F) and a maximum temperature of 34°C (93°F). Precipitation is more frequent in October, occurring on about 13 days with a total of 139 mm (5.5 in), while April sees fewer rainy days (8) and less overall precipitation at 73 mm (2.9 in). Additionally, humidity levels are slightly higher in October at 85%, compared to April's 82%. For more detailed information on April's weather, visit Guaiba weather in April.
In comparing the weather of October and May, October tends to be warmer overall, with average temperatures reaching 20°C (68°F) compared to May's average of 17°C (63°F). October also sees a higher maximum temperature, peaking at 37°C (100°F), while May's maximum is a more moderate 32°C (90°F). However, May experiences slightly less precipitation, totaling 153 mm (6.0 in) over 10 days compared to October's 139 mm (5.5 in) over 13 days, making May a somewhat drier month. Humidity levels are similar, with October at 85% and May at 87%, creating a consistently humid atmosphere in both months. For more detailed climate insights, check out Guaiba weather in May.
In October, the weather exhibits a more significant temperature range compared to June, with average highs reaching up to 37°C (100°F), in contrast to June's maximum of 31°C (88°F). While October experiences heavier rainfall, with 139 mm (5.5 in) over 13 days, June is slightly drier, averaging 113 mm (4.4 in) over just 9 days. Both months share high humidity levels at 85%, but the warmer October days can feel particularly stifling. For a closer look at June's conditions, check out Guaiba weather in June.
In comparing the weather between October and July, October tends to be much warmer, with an average temperature of 20°C (68°F) compared to July's cooler average of 14°C (58°F). October can experience more extreme temperatures, ranging from a minimum of 9°C (49°F) to a maximum of 37°C (100°F), while July's temperatures are more modest, with a maximum of 30°C (87°F). Additionally, October sees more precipitation, with 139 mm (5.5 in) falling over approximately 13 days, compared to July's 122 mm (4.8 in) over just 8 days. Humidity levels are fairly similar, standing at 85% in October and 82% in July, indicating that both months can feel quite humid. For a more detailed look at July weather specifics, you can check out Guaiba weather in July.
In a comparison of October and August weather, October tends to be warmer and wetter. While October sees an average temperature of 20°C (68°F) with a maximum reaching up to 37°C (100°F), August has a lower average of 16°C (61°F) and a maximum of 34°C (94°F). Additionally, October experiences significantly higher precipitation at 139 mm (5.5 in) over 13 days, compared to August's 70 mm (2.8 in) over just 8 days. Humidity also rises slightly in October, averaging 85% versus August's 81%. For more specific details on August weather, you can visit Guaiba weather in August.
In comparing the weather between September and October, one can notice a few distinct differences. October has a slightly higher average temperature of 20°C (68°F) compared to September’s 18°C (65°F), with max temperatures peaking at 37°C (100°F) in October versus 36°C (96°F) in September. Despite this warmth, October experiences more precipitation, totaling 139 mm (5.5 in) over 13 days, contrasted with September's 155 mm (6.1 in) over just 12 days. Humidity remains quite similar, with October recording 85% and September at 84%. For a closer look at September's weather specifics, you can refer to Guaiba weather in September.
October and November present a gradual transition in weather, with November experiencing slightly warmer temperatures. In October, the minimum temperature dips to 9°C (49°F) with an average of 20°C (68°F), while November starts at a higher minimum of 12°C (53°F) and an average of 22°C (72°F). Both months can reach a maximum of 37°C (100°F), but November offers a respite with a decrease in precipitation, totaling 112 mm (4.4 in) over 10 days, compared to October's 139 mm (5.5 in) over 13 days. Additionally, humidity levels are marginally lower in November at 82% compared to October's 85%, creating a more comfortable atmosphere overall. For more detailed insights into the weather, check out Guaiba weather in November.
In October, temperatures range from a minimum of 9°C (49°F) to a high of 37°C (100°F), with an average of 20°C (68°F). The month is characterized by significant rainfall, totaling 139 mm (5.5 in) over approximately 13 days, alongside high humidity levels at 85%. In contrast, December sees a milder temperature profile, with a low of 13°C (55°F) and an average of 24°C (76°F), peaking at 38°C (101°F). Precipitation decreases to 80 mm (3.2 in) over 8 days, and humidity remains slightly lower at 84%. For more specific insights into December weather patterns, you can check Guaiba weather in December.
In October, Guaiba begins to shake off the chill of winter, welcoming warmer days that draw residents outdoors. With a maximum temperature that can soar to a sizzling 37°C (100°F) and an average much more comfortable at 20°C (68°F), the month showcases a vibrant transition in climate. However, the higher humidity at 85% combined with 139 mm of rain falling over 13 days, adds a unique twist to the otherwise sunny disposition. This blend of warmth and moisture sets October apart, marking it as a time of vibrant change and refreshing showers. For more details on the ever-changing weather patterns throughout the year, visit Guaiba Climate.