September Weather in Sao Joaquim, Brazil

Last updated: August 21, 2025

September in São Joaquim, Brazil offers a captivating blend of seasonal transitions, marked by a maximum temperature of 28°C (82°F) and a refreshing average of 15°C (59°F). Visitors can expect a crisp atmosphere with minimum temperatures dipping to 2°C (36°F) at night. This month is also characterized by 129 mm (5.1 in) of precipitation spread across 12 days, contributing to the lush surroundings. With humidity levels averaging around 80%, the climate is intriguing, making September an ideal time for experiencing the natural beauty and unique charm of this mountainous region.

September Temperature in Sao Joaquim

In September, Sao Joaquim begins to shake off the chill of winter, with temperatures rising from their chilly lows. This month sees a minimum of 2°C (36°F), a clear sign of warming, while the average temperature settles at a comfortable 15°C (59°F). The maximum temperature reaches a pleasant 28°C (82°F), showcasing the gradual transition into spring. Compared to the preceding winter months, September marks a notable increase, with temperatures climbing steadily from the frigid levels of July and August. As nature awakens, visitors can expect a refreshing environment perfect for exploring the breathtaking landscapes of this charming Brazilian town.

September Weather in Sao Joaquim: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sao Joaquim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Joaquim, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec666564595452505359596164
Data source: Temperature data for Sao Joaquim 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.

September Precipitation in Sao Joaquim

In September, São Joaquim experiences a return to significant rainfall, with a notable precipitation total of 129 mm (5.1 in), mirroring the wetter conditions seen in May and June. This uptick in precipitation days, averaging 12 days of rain throughout the month, sets the stage for the lush landscapes characteristic of the region. Following a drier August, where only 71 mm (2.8 in) fell over just 7 days, September serves as a reminder of the cyclical nature of the local climate. The patterns suggest a transition as October approaches, with precipitation levels remaining substantial, hinting at the persistent moisture that nurtures the vibrant flora of the area.

September Precipitation Trends in Sao Joaquim

The chart displays monthly precipitation patterns in Sao Joaquim, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Sao Joaquim, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec142879963129130857112912312296
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sao Joaquim

In September, Sao Joaquim experiences a humidity level of 80%, which is consistent with the city's typical atmospheric patterns. Following a dip to 77% in August, the return to September's 80% indicates a slight stabilization in moisture as the region transitions into spring. The months of May and June showcase the peak humidity, reaching 88% and 86% respectively, while the year's pattern suggests a gradual increase from the drier winter months of July and August. With these figures, it’s clear that Sao Joaquim maintains a generally humid climate, with September marking a period of renewal before humidity begins to rise again as it enters the warmer months of late spring and early summer.

September Average Humidity in Sao Joaquim

This chart illustrates the average monthly humidity levels in Sao Joaquim, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Sao Joaquim is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%79%83%88%86%82%77%80%84%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sao Joaquim

In September, Sao Joaquim experiences a UV Index of 11, categorized as extreme, which means that the risk of harm from unprotected sun exposure is high and the recommended burn time is just 10 minutes. This sharp rise in UV levels follows the slightly moderate conditions seen in the winter months, reflecting a notable seasonal transition. As we move through the year, this trend of increasing UV intensity continues into October, where the index reaches 13. Such consistency in extreme UV ratings highlights the importance of sun safety practices, even as spring approaches. For more details on sun exposure in this beautiful region, explore the complete information at Sao Joaquim UV Index.

Maximum UV Index Levels in Sao Joaquim for September

The chart shows the monthly maximum UV Index (UVI) for Sao Joaquim in September, 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 September, the maximum UV index in Sao Joaquim typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151311756811131515
Data source: Sao Joaquim September 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.

September Sunshine in Sao Joaquim

September in São Joaquim, Brazil, basks in an inviting 247 hours of sunshine, marking a delightful transition into spring. As we move from the winter months, the days gradually lengthen, showcasing a consistent pattern of increasing sunlight that peaks in December with 340 hours. Although September experiences fewer sunny hours than the bustling summer months of November and December, it still offers a warm embrace compared to the cooler winter, with 227 hours in June and 234 hours in May. This aromatic blend of spring warmth paired with the vibrant energy of nature coming to life makes September a charming time to soak up the sun in this picturesque location.

Monthly Sunshine Duration in Sao Joaquim: September Highlighted

The September sunshine duration represents the total number of hours Sao Joaquim experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec243h297h294h265h234h227h257h274h247h263h305h340h
Data source: Sao Joaquim September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sao Joaquim During September

As September rolls around in São Joaquim, the likelihood of enjoying sunny weather stands at 33%. This marks a slight dip compared to the more favorable conditions seen in both May and July, where the chances soar to 57%. The trend throughout the year shows that sunny days are most abundant in the mid-year months, especially in May and July, while early spring offers a mixed bag of cloud cover. Despite September's relatively lower probability of sunshine, it is still a fresh transition towards clearer skies, hinting at the brighter days that October may bring with its 27% chance of sun. Thus, while September might not be the sunniest month, it still offers glimpses of the clearer skies that are just around the corner.

Percentage of Sunny Days in September in Sao Joaquim

The chart illustrates the percentage of sunny days in Sao Joaquim throughout the year, with September 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 Sao Joaquim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%44%30%43%57%34%57%43%33%27%39%45%
Data source: Sao Joaquim September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sao Joaquim in September

In Sao Joaquim, Brazil, September marks a transition in daylight duration, maintaining 11 hours of daylight—a continuation of the lengthening trend observed since the more abbreviated days of winter. Following the peak daylight hours of 13 hours seen in January and February, the daylight begins to gently retreat in March, tapering off until it reaches a mid-year low of 10 hours from May to July. August sees a brief increase as daylight stretches back to 11 hours, and September holds steady, suggesting a gradual approach toward the longer days of spring as the year progresses. This cyclical rhythm highlights the natural ebb and flow of daylight, preparing the region for the brightening months ahead, with longer days returning in October and November.

Average Daylight Hours in Sao Joaquim for September

The chart illustrates the variation in daylight duration in Sao Joaquim throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 41m13h 2m12h 12m11h 22m10h 41m10h 21m10h 32m11h 8m11h 55m12h 46m13h 30m13h 53m
Data source: Sao Joaquim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Sao Joaquim

As September arrives in São Joaquim, Brazil, the gentle embrace of the wind takes on a pleasant tone, averaging 3.5 m/s (8 mph). This marks a slight uptick from the previous months, culminating in a refreshing blend of crispness that hints at the changing seasons. After a steady decline from the modest breezes of late spring and early summer, September's winds are on par with the slightly stronger gusts of August. Notably, the transitional winds of September also suggest a shift towards the more dynamic wind patterns of the coming months, enhancing the region's charm as it drifts gracefully toward the richer textures of autumn.

Average September Wind Speed in Sao Joaquim

The chart displays monthly wind speed patterns in Sao Joaquim, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.42.82.82.82.73.33.23.53.5 m/s3.33.02.8
Data source: Sao Joaquim September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Sao Joaquim Compares to Other Months

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

In September, temperatures in Sao Joaquim range from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). The month sees about 129 mm (5.1 in) of precipitation over 12 days, and the humidity remains consistently high at 80%. In contrast, January experiences milder conditions with minimum temperatures around 8°C (47°F) and maximums reaching 29°C (85°F), averaging at 19°C (66°F). Precipitation increases slightly to 142 mm (5.6 in) over 16 days, while humidity remains stable at 80%. For more detailed weather information, you can check Sao Joaquim weather in January.

In September, the weather tends to be cooler with minimum temperatures dropping to around 2°C (36°F) and average highs reaching 28°C (82°F). This month is characterized by a higher precipitation level of 129 mm (5.1 in) spread across 12 days, resulting in a humidity level of 80%.

Conversely, February experiences a milder climate with a minimum temperature of 6°C (44°F) and an average temperature of 18°C (65°F), peaking at 29°C (85°F). Although February sees slightly less rainfall, with precipitation amounting to 87 mm (3.4 in) over 13 days, the humidity is slightly lower at 77%. For more detailed information, check out Sao Joaquim weather in February.

In comparing the weather of September and March, there are notable differences in temperature and precipitation. September experiences a wider temperature range, with minimums dipping to 2°C (36°F) and maximums reaching up to 28°C (82°F), while March has a milder minimum of 8°C (47°F) and a slightly higher maximum of 30°C (86°F). Precipitation in September is more substantial at 129 mm (5.1 in) over 12 days, compared to March's 98 mm (3.9 in) across 15 days, indicating slightly wetter conditions earlier in the year. Humidity levels remain fairly consistent, with September at 80% and March at 79%. For a more detailed look at weather specifics in March, you can check Sao Joaquim weather in March.

When comparing the weather in September to that of April, both months exhibit similar average temperatures around 15°C (59°F), but the nuances in their climate are quite apparent. September experiences a wider temperature range, with minimums dipping to 2°C (36°F) and maximums reaching 28°C (82°F), whereas April showcases a cooler minimum of -1°C (31°F) and a maximum of 25°C (78°F). Precipitation levels also differ significantly; September receives a substantial 129 mm (5.1 in) over 12 days, contrasting with April's much lighter 63 mm (2.5 in) over only 8 days. Additionally, humidity is marginally higher in April at 83% compared to September's 80%. For more detailed insights into April weather, you can visit Sao Joaquim weather in April.

September and May present contrasting weather conditions, despite having similar precipitation levels. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F), indicating a warmer start to the fall season. The humidity is relatively high at 80%, and precipitation is experienced over 12 days. In contrast, May tends to be cooler, with temperatures dipping to a minimum of -1°C (31°F) and peaking at 25°C (76°F), and an average temperature of 12°C (54°F). The humidity in May is slightly higher at 88%, and precipitation occurs on 11 days. For those interested in May's weather details, you can check Sao Joaquim weather in May.

When comparing the weather in September and June, there are notable differences in temperature and humidity. September typically has a wider temperature range, with minimums of 2°C (36°F) and maximums reaching 28°C (82°F), leading to an average of 15°C (59°F). In contrast, June starts with cooler conditions, presenting minimum temperatures of -4°C (25°F) and maximums of 23°C (73°F), resulting in a lower average of 11°C (52°F). Both months experience similar levels of precipitation, around 130 mm (5.1 in), but September has slightly more humidity at 80% compared to June's 86%. For more detailed insights on June weather in Sao Joaquim, you can visit Sao Joaquim weather in June.

In comparing the weather between September and July, September typically offers a wider temperature range with minimums around 2°C (36°F) and maximums peaking at 28°C (82°F), averaging 15°C (59°F). The month experiences more rainfall, with about 129 mm (5.1 in) spread over 12 days, and a humidity level of 80%. In contrast, July features cooler conditions with minimum temperatures of -6°C (22°F) and maximums of 24°C (75°F), averaging at 10°C (51°F). Rainfall in July is also less, recorded at 85 mm (3.3 in) over only 8 days. Both months maintain a high level of humidity, at 82%. For more detailed insights, you can check Sao Joaquim weather in July.

In comparing the weather between August and September, September experiences a broader temperature range, with minimums of 2°C (36°F), average temperatures of 15°C (59°F), and maximums reaching 28°C (82°F). In contrast, August shows slightly cooler temperatures, with minimums dropping to -5°C (24°F) and maximums of 26°C (79°F). Additionally, September sees significantly higher precipitation levels at 129 mm (5.1 in) over 12 days, compared to August's 71 mm (2.8 in) over just 7 days. Humidity in September is also marginally higher at 80%, compared to 77% in August, contributing to a more humid atmosphere as summer approaches. For more specific details on August weather, check Sao Joaquim weather in August.

September and October showcase similar temperature ranges, with both months recording a minimum of 2°C (36°F) and an average of 15°C (59°F). However, October experiences slightly higher maximum temperatures, reaching up to 29°C (84°F) compared to September's 28°C (82°F). Precipitation levels are relatively close, with September receiving 129 mm (5.1 in) over 12 days, while October has a bit less at 123 mm (4.8 in) across 15 days. Additionally, humidity increases from 80% in September to 84% in October. For more detailed insights, check out Sao Joaquim weather in October.

In September, the weather features a broader temperature range with a minimum of 2°C (36°F) and a maximum of 28°C (82°F), while November sees slightly milder temperatures, with a minimum of 3°C (37°F) and a maximum of 27°C (81°F). Both months experience similar precipitation levels, with September receiving 129 mm (5.1 in) and November slightly less at 122 mm (4.8 in), spread across 12 days of rain in each month. Humidity remains high in both periods, starting at 80% in September and increasing marginally to 83% in November, creating a damp atmosphere. For more detailed insights on November weather, visit Sao Joaquim weather in November.

September and December weather in the region highlight noticeable temperature variations and precipitation patterns. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). The month sees around 129 mm (5.1 in) of precipitation over 12 days, while humidity levels hover around 80%. In contrast, December experiences higher temperatures, with a minimum of 4°C (39°F) and a maximum of 30°C (86°F), along with an average of 18°C (65°F). Although December has slightly less precipitation at 96 mm (3.8 in), it has a higher humidity level of 87% spread over 14 days. For more details, check out this Sao Joaquim weather in December.

Compare Sao Joaquim's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Sao Joaquim

September in São Joaquim presents a fascinating transition as the winter chill begins to fade, giving way to warmer days. With temperatures averaging a comfortable 15°C but reaching up to 28°C, one can enjoy pleasant afternoons, though early mornings still carry a refreshing bite with lows around 2°C. This month also brings moderate rainfall, totaling 129 mm across about half the days, contributing to a notably humid atmosphere at 80%. Compared to other months, September is a delightful blend of crispness and warmth, making it a unique time to experience the region’s invigorating climate. For more insights on weather patterns, visit Sao Joaquim Climate.