September Weather in Nazare, Brazil

Last updated: August 21, 2025

September in Nazare, Brazil offers a warm and inviting climate, with temperatures reaching a maximum of 31°C (87°F) and settling at a comfortable average of 24°C (75°F). The evenings provide a refreshing respite with a minimum of 18°C (65°F). However, visitors should be prepared for frequent rains, as the month brings approximately 90 mm (3.5 in) of precipitation over 22 days, contributing to a humid atmosphere with levels around 75%. Enjoy the vibrant scenery while navigating the occasional showers, making September a unique time to experience Nazare’s diverse beauty.

September Temperature in Nazare

In September, Nazare, Brazil, experiences a delightful transition as temperatures remain pleasantly mild. The month boasts a minimum of 18°C (65°F) and an average temperature of 24°C (75°F), culminating in a comfortable maximum of 31°C (87°F). This marks a slight rebound from the cooler temperatures of winter, with both the average and maximum temperatures on the rise compared to the previous months. As the warm tropical climate begins to reassert itself, September offers an ideal blend of warmth and comfort, making it a perfect time for outdoor activities and enjoying the stunning beaches. Overall, this month sets the stage for the warmer, vibrant days of late spring and early summer ahead.

September Weather in Nazare: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nazare, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nazare, 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).
JanFebMarAprMayJunJulAugSepOctNovDec798080787674737375777879
Data source: Temperature data for Nazare 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 Nazare

In September, Nazare experiences a notable transition in weather patterns, with precipitation amounting to 90 mm (3.5 in) over 22 days of rain. This marks a decline from the wetter months preceding it, especially May's peak at 147 mm. As the dry season approaches, September serves as a bridge, providing ample moisture while hinting at drier times ahead. The rainfall, though significant, is lighter compared to the summer months, making it a crucial period for local ecosystems, as well as for those enjoying the dwindling waves and milder climates before the onset of October's reduced rainfall.

September Precipitation Trends in Nazare

The chart displays monthly precipitation patterns in Nazare, 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 Nazare, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6157110146147132130116905810292
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nazare

In September, Nazare, Brazil experiences a slight dip in humidity, measuring at 75%. This marks a continuation of the downward trend that begins with the peak humidity levels of March (86%) and April (87%). After months of high moisture, August begins the shift toward drier conditions, with September maintaining a refreshing balance before transitioning into the even lower humidity of the approaching months. The consistent reduction from October (72%) to December (70%) suggests a gradual easing of the humid summer air, making way for a more comfortable atmosphere as the year winds down.

September Average Humidity in Nazare

This chart illustrates the average monthly humidity levels in Nazare, 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 Nazare is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%81%86%87%86%84%80%77%75%72%71%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nazare

In September, Nazare, Brazil, experiences a UV Index of 13, placing it in the extreme exposure category, with a burn time of just 10 minutes. This trend of high UV exposure is consistent with the months leading into spring, following a pattern established from January through April, where the UV Index frequently reaches as high as 14. After a slight dip in June and July, it resurges in August and maintains a strong intensity into September. As the UV Index remains notably high throughout much of the year, it's crucial for visitors and locals alike to practice sun safety. Stay informed and protect yourself from the sun's rays by checking the detailed UV levels online at Nazare UV Index.

Maximum UV Index Levels in Nazare for September

The chart shows the monthly maximum UV Index (UVI) for Nazare 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 Nazare typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14141413119101213151514
Data source: Nazare 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 Nazare

As summer fades into autumn, September in Nazaré, Brazil, shines with an impressive 310 hours of sunshine. This marks a slight dip from the vibrant summer months, yet it maintains a warm embrace similar to August's 307 hours. The sunlit days continue to linger, bridging the transition into the more radiant October, which boasts an impressive 334 hours. This pattern reveals a delightful trend for sun-seekers: while each month may fluctuate slightly, the overall sunshine remains abundant throughout these early fall weeks, setting the perfect stage for both relaxation and adventure by the Atlantic coast.

Monthly Sunshine Duration in Nazare: September Highlighted

The September sunshine duration represents the total number of hours Nazare 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.
JanFebMarAprMayJunJulAugSepOctNovDec284h309h322h299h293h280h296h307h310h334h297h329h
Data source: Nazare September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nazare During September

In September, Nazare, Brazil, enjoys a 50% chance of sunny weather, marking a notable shift as the region transitions into spring. This favorable likelihood comes after a summer of fluctuating sunshine, with the highest probability in March at 58% and a drop during the winter months. As the year progresses into October, the chances of sun decrease slightly to 41%, hinting at the approaching rainy season. Overall, September stands out as a promising time for sun seekers, offering a balanced mix of pleasant weather and outdoor opportunities.

Percentage of Sunny Days in September in Nazare

The chart illustrates the percentage of sunny days in Nazare 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 Nazare experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%31%58%30%40%38%32%38%50%41%25%14%
Data source: Nazare September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nazare in September

In September, Nazare, Brazil, experiences a delightful return to 12 hours of daylight, marking a shift back to longer sunlit days after the more subdued light of the winter months. This month beautifully transitions from the cooler, shorter days of winter, with daylight gradually increasing during the year. From April to August, the days remain consistently shorter at about 11 hours, hinting at seasonal changes and a gentle winding down into the southern hemisphere's cooler months. However, as September arrives, the sun graces Nazare with its vibrant glow once again, offering both locals and visitors an ideal time to enjoy outdoor activities and the town's stunning coastal scenery. The trend of returning to 12 hours of daylight persists into October and through to the end of the year, creating a rhythm that celebrates both daylight and the changing seasons in this beautiful coastal region.

Average Daylight Hours in Nazare for September

The chart illustrates the variation in daylight duration in Nazare throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 46m12h 29m12h 8m11h 46m11h 29m11h 21m11h 25m11h 40m12h 1m12h 23m12h 42m12h 52m
Data source: Nazare daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Nazare

As September transitions in Nazare, Brazil, the average wind speed measures 2.5 m/s (6 mph), maintaining a steady rhythm that characterizes the end of winter. Following the notable gusts of July at 3.1 m/s (7 mph), September sees a slight dip, aligning with the gentle breezes typically found in the preceding months of June and August. This consistency in wind patterns suggests a lingering warmth and gradual shift towards autumn, echoing the calm that envelops the region. As the winds subside slightly, September remains an inviting time for both relaxation and recreation, highlighting the delicate balance of Nazare's coastal climate.

Average September Wind Speed in Nazare

The chart displays monthly wind speed patterns in Nazare, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.42.52.42.72.73.12.92.5 m/s2.62.42.2
Data source: Nazare September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Nazare Compares to Other Months

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

September and January both exhibit warm temperatures, but January tends to be slightly warmer on average. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 31°C (87°F), with an average of 24°C (75°F). This month also experiences higher precipitation levels at 90 mm (3.5 in) spread over 22 days, resulting in a humidity of 75%. In contrast, January has a minimum temperature of 21°C (69°F), an average of 26°C (80°F), and a maximum of 32°C (91°F). January experiences less precipitation, totaling 61 mm (2.4 in) over 18 days, with humidity slightly higher at 76%. For more detailed weather insights, check out Nazare weather in January.

September and February present distinct weather patterns, each with its own characteristics. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 31°C (87°F), averaging around 24°C (75°F). This month sees a higher amount of precipitation, totaling 90 mm (3.5 in) over 22 days, alongside a humidity level of 75%. In contrast, February offers warmer conditions, with minimum temperatures of 22°C (71°F) and a maximum reaching 35°C (96°F), averaging 27°C (81°F). Precipitation decreases in February to 57 mm (2.3 in) over 18 days, and humidity rises slightly to 81%. For more information on February weather, you can visit Nazare weather in February.

In September, the weather features a milder temperature range with a minimum of 18°C (65°F) and an average of 24°C (75°F), peaking at 31°C (87°F). The month experiences about 90 mm (3.5 in) of precipitation across 22 days, accompanied by a humidity level of 75%. In contrast, March presents warmer temperatures, starting at a minimum of 21°C (70°F) and averaging 26°C (80°F), with highs reaching 35°C (95°F). The precipitation increases slightly to 110 mm (4.3 in) over 21 days, and humidity rises to a higher 86%. For detailed weather insights in March, you can check Nazare weather in March.

September and April exhibit distinct weather patterns. In September, temperatures typically range from a minimum of 18°C (65°F) to a maximum of 31°C (87°F), with an average of 24°C (75°F). The month sees about 90 mm (3.5 in) of precipitation spread over 22 days, and humidity levels hover around 75%. In contrast, April experiences slightly warmer temperatures with a minimum of 20°C (69°F) and a maximum reaching 34°C (94°F), averaging 26°C (78°F). However, it is also wetter, with precipitation totaling 146 mm (5.8 in) over 25 days and higher humidity at 87%. For more details on the weather in April, you can visit Nazare weather in April.

In comparing the weather between September and May, both months exhibit similar average temperatures, with September having a range from 18°C to 31°C (65°F to 87°F) and May slightly warmer at 19°C to 32°C (66°F to 90°F). However, May tends to be wetter, accumulating 147 mm (5.8 in) of precipitation over 25 days compared to September's 90 mm (3.5 in) over 22 days. Additionally, May is characterized by higher humidity levels at 86%, while September's humidity is a bit lower at 75%. For a detailed look at May weather specifically, you can visit Nazare weather in May.

In comparing the weather of September and June, September tends to be slightly warmer, with average temperatures reaching 24°C (75°F) and maximums peaking at 31°C (87°F). In contrast, June's temperatures are just a touch cooler, with an average of 23°C (75°F) and maximums of 29°C (85°F). However, June experiences more precipitation, with about 132 mm (5.2 in) falling over 26 days, compared to September's 90 mm (3.5 in) across 22 days. Additionally, the humidity is higher in June at 84%, compared to September's 75%. For those interested in more detailed weather patterns, you can check out Nazare weather in June.

In comparing the weather between July and September, both months exhibit warm temperatures suitable for summer, with July showing slightly cooler averages. July has a minimum temperature of 17°C (62°F) and an average of 23°C (73°F), while September sees temperatures starting at a minimum of 18°C (65°F) and an average of 24°C (75°F). Precipitation levels are higher in July, with a total of 130 mm (5.1 in) over 25 days compared to September’s 90 mm (3.5 in) across 22 days. Humidity remains relatively high in both months, though July is slightly more humid at 80%, compared to September’s 75%. For more specific details, you can check out Nazare weather in July.

In comparing the weather of September to August, September tends to be slightly warmer overall, with average temperatures rising to 24°C (75°F) compared to August’s 23°C (73°F). The minimum temperature in September is also a bit higher at 18°C (65°F), while August has a minimum of 17°C (63°F). However, September experiences less total precipitation at 90 mm (3.5 in) over 22 days, compared to August's 116 mm (4.6 in) over 24 days. Both months are characterized by high humidity, but September is marginally lower at 75% compared to 77% in August. For more details, you can refer to Nazare weather in August.

September and October exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 31°C (87°F), with an average temperature of 24°C (75°F). The month sees significantly more rainfall, totaling 90 mm (3.5 in) over 22 days, coupled with high humidity at 75%. In contrast, October experiences slightly warmer conditions, with temperatures ranging from 20°C (68°F) to 33°C (92°F) and an average of 25°C (78°F). Additionally, precipitation decreases to 58 mm (2.3 in) over 16 days, and humidity levels drop slightly to 72%. For more details about October weather, you can check Nazare weather in October.

September and November offer distinct weather characteristics that reflect the transition of seasons. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 31°C (87°F), with an average of 24°C (75°F), while November sees slightly warmer temperatures, with a minimum of 21°C (70°F) and a maximum of 33°C (91°F), averaging 25°C (78°F). Precipitation levels are also notable, with September experiencing 90 mm (3.5 in) of rain over 22 days, compared to November's 102 mm (4.0 in) across 21 days. Humidity remains fairly high in both months; however, November is marginally drier at 71% compared to September's 75%. For those curious about what to expect during this period, you can find more detailed information here: Nazare weather in November.

In September, the weather typically features a minimum temperature of 18°C (65°F) and can reach a maximum of 31°C (87°F), with an average around 24°C (75°F). This month experiences about 90 mm (3.5 in) of precipitation over 22 days, with humidity levels peaking at 75%. Conversely, December is slightly warmer, with minimum temperatures starting at 21°C (69°F) and highs reaching up to 33°C (92°F), averaging 26°C (79°F). Precipitation is similar to September, at 92 mm (3.6 in), though it occurs over fewer days (18 days) and with a slightly lower humidity of 70%. For more details on December weather in Nazare, visit Nazare weather in December.

Compare Nazare's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Nazare

As September rolls in, Nazare experiences a noticeable shift in weather, marked by warmer temperatures and increased humidity compared to the cooler months of the year. With an average of 24°C, this month leans into a summery vibe, but also comes with frequent rainfall, as evidenced by the 22 days of precipitation. This blend of warmth and wetness makes September distinct, often paralleling the highs of summer while still ushering in the refreshing scents of fall. For a deeper dive into what to expect, check out Nazare Climate.