Last updated: August 21, 2025
September in Araruama, Brazil, brings a delightful mix of warmth and moisture, showcasing maximum temperatures reaching 32°C (91°F) and an average of 23°C (73°F), perfect for enjoying outdoor activities. The evenings cool down to a comfortable 16°C (61°F), providing a lovely respite from the daytime heat. The month sees 61 mm (2.4 in) of rain spread over approximately 8 days, contributing to the lush landscapes characteristic of the region. With a relative humidity of 75%, the air feels pleasantly tropical, inviting both locals and visitors to explore the vibrant beauty of this coastal gem.
In September, Araruama, Brazil, welcomes the transition from winter to spring with delightful temperatures that hint at the warmer months ahead. The average temperature hovers around 23°C (73°F), offering a comfortable climate for outdoor activities. Mornings begin with a mild 16°C (61°F), while the afternoons bring a pleasant warmth, peaking at about 32°C (91°F). This subtle rise in temperatures marks a clear shift from the cooler months of July and August, where lows dipped to 14°C (58°F). As the region prepares for the peak summer season, September serves as a gentle reminder of the vibrant warmth that awaits.
In September, Araruama experiences a shift in its precipitation patterns, with a total of 61 mm (2.4 in) of rainfall spread over 8 days. While this marks a decrease from the wetter months prior, it still contributes to the region's lush landscapes leading into the spring. Compared to the heavier rains of November and March, this relatively moderate rainfall provides a pleasant respite, signaling a transition period before the more intense downpours of the following months. As summer approaches, September’s moderate climate offers an ideal backdrop for outdoor activities, despite the occasional shower, making it a month of balance between dry and wet conditions.
In September, Araruama experiences a notable continuation of its dry season, with humidity levels at 75%. This marks a gradual decline from the peak of 85% in January, showcasing a shift towards more comfortable conditions as the year progresses. Throughout the months leading up to September, humidity levels steadily decreased from 80% in May, bottoming out during the late summer. Interestingly, this transitional month shares its humidity with August, preceding a slight rise in the following months of October and November, which could hint at the impending transition into the rainy season. Overall, September stands out as a month of relative dryness in comparison to the wetter months before and after, making it a pleasant time for outdoor activities in this coastal paradise.
In September, Araruama, Brazil, experiences a UV Index of 11, categorizing it as extreme with a burn time of just 10 minutes, similar to the conditions seen in both April and October. This indicates a notable trend where late winter transitions into spring bring heightened UV exposure, closely paralleling the intensity experienced earlier in the year. Throughout the months leading up to September, the UV Index fluctuates significantly, with the peak values reaching as high as 16 in January and gradually decreasing to 6 by June before climbing again. As the weather warms, it’s essential for residents and visitors to stay vigilant about sun protection during this intense UV season. To learn more about UV Index trends in Araruama, visit Araruama UV Index.
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In September, Araruama, Brazil, shines brightly with an impressive 304 hours of sunshine, embracing the transition from winter to spring. As the days grow longer and warmer, this month marks a high point in the sunshine calendar, continuing the trend of increased sunlight observed since June. Following August's 289 hours, September's radiant days are a prelude to the sunny splendor that peaks in December, which boasts a remarkable 334 hours of sunlight. The consistency of sunshine hours into October solidifies Araruama's reputation as a haven for sun-seekers, making September not just a colorful month for nature's rebirth, but also a delightful time for beachgoers and outdoor enthusiasts alike.
In Araruama, Brazil, September offers a balanced 45% chance of sunny weather, marking a slight dip from the sunnier months of July and August, where the probabilities peak at 65% and 58% respectively. As spring approaches in the Southern Hemisphere, the weather begins to transition, resulting in more variability. Notably, the likelihood of sunny days significantly increases from the cooler months of April (56%) and May (51%). Looking ahead, this moderate sunshine can inspire outdoor activities, though it's wise to remain prepared for the possibility of rain, especially as the chances plummet to 20% in October.
In Araruama, Brazil, the transition into September marks an interesting phase in daylight duration. The month offers 11 hours of daylight, reflecting a slight increase from the earlier winter months but maintaining the same amount as in August. Observing the year as a whole, it’s clear that daylight hours begin to extend after the winter months of May through July, which each average around 10 hours. This gradual increase continues through October, leading into the peak summer months of November and December, where the days stretch back to a generous 13 hours of sunlight. Overall, September serves as a bridge, ushering in the longer daylight hours characteristic of the warmer months ahead.
As September rolls into Araruama, Brazil, the breeze begins to pick up, with average wind speeds reaching 4.5 m/s (10 mph). This gentle but noticeable increase in wind is part of a broader trend, where the late winter months transition into spring, consistently showcasing a pattern of heightened winds. After a dynamic summer that saw speeds peak in August at the same 4.3 m/s, September stands out as a month where nature seems to breathe a little more vigorously. Following this, wind speeds slightly taper off into October at 4.2 m/s (9 mph), illustrating a subtle shift from summer's warmth toward the milder climes of fall. Overall, September's inviting winds create an ideal backdrop for outdoor activities, inviting locals and visitors to embrace the beauty of Araruama.
Weather in Araruama varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Araruama, focusing on differences in temperature, rainfall, humidity, and UV levels.
Comparing the weather in September and January reveals notable differences in temperature and humidity. In September, the temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 23°C (73°F), accompanied by 61 mm (2.4 in) of rainfall over 8 days and a humidity level of 75%. In contrast, January is warmer, featuring a minimum temperature of 21°C (69°F), an average of 26°C (80°F), and a maximum of 33°C (92°F). Precipitation increases to 102 mm (4.0 in) over 11 days, with humidity rising to 85%. For more specifics on January weather, visit Araruama weather in January.
September and February exhibit distinct weather patterns, with February generally being warmer and wetter than September. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), accompanied by an average temperature of 23°C (73°F) and relatively lower humidity at 75%. Precipitation in September totals 61 mm (2.4 in) over about 8 days. In contrast, February features milder minimum temperatures starting at 21°C (69°F) and reaching up to 33°C (92°F), with an average of 26°C (79°F). February also sees significantly higher rainfall, with 156 mm (6.1 in) recorded over 16 days, and the humidity rises to 86%. For a more detailed look at the weather, you can visit Araruama weather in February.
When comparing the weather in September and March, it's evident that both months have their unique characteristics. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 23°C (73°F). The month experiences about 61 mm (2.4 in) of precipitation over 8 days and boasts a humidity level of 75%. Conversely, March sees slightly warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 33°C (91°F), averaging 26°C (79°F). However, it also experiences significantly more rainfall, totaling 172 mm (6.8 in) across 16 days, and higher humidity at 84%. For more detailed insights on March weather, you can visit Araruama weather in March.
In comparing the weather of September and April, we see notable similarities and differences. September typically experiences a temperature range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 23°C (73°F), while April is slightly warmer, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 33°C (91°F), averaging 24°C (76°F). Precipitation levels in April are higher at 80 mm (3.1 in) over 12 days compared to September's 61 mm (2.4 in) across 8 days, indicating that April tends to be wetter. Additionally, humidity levels are also higher in April at 82%, compared to 75% in September, contributing to a more humid feel during that month. For more detailed insights, you can explore Araruama weather in April.
In comparing the weather between September and May, we see that both months share the same minimum and average temperatures, hovering at 16°C (61°F) and 23°C (73°F) respectively. However, May experiences slightly lower maximum temperatures of 32°C (89°F) compared to September's peak of 32°C (91°F). Precipitation is also higher in May, with 72 mm (2.9 in) over 10 days, while September has 61 mm (2.4 in) distributed over 8 days. Additionally, May has a higher humidity level at 80% compared to September's 75%, making it feel a bit more muggy. For a detailed look at the weather in May, you can check this link: Araruama weather in May.
In comparing the weather between September and June, we see some similarities and notable differences. Both months start with a minimum temperature of 16°C (61°F), but September tends to be warmer overall, with an average high of 32°C (91°F) compared to June's maximum of 31°C (88°F). Additionally, September experiences more rainfall, receiving 61 mm (2.4 in) over 8 days, while June has less precipitation, totaling 43 mm (1.7 in) across 9 days. Humidity levels are also slightly lower in September at 75%, compared to 78% in June. For more detailed insights, you can check Araruama weather in June.
In comparing the weather between July and September, we see that September boasts slightly warmer temperatures, with a minimum of 16°C (61°F), an average of 23°C (73°F), and a maximum of 32°C (91°F), compared to July's minimum of 14°C (58°F), average of 21°C (70°F), and maximum of 31°C (88°F). Additionally, September experiences more precipitation, with 61 mm (2.4 in) over 8 days, while July sees only 32 mm (1.3 in) over 7 days. Humidity levels are quite similar, with September at 75% and July at 77%, making both months feel relatively humid. For a more detailed look at the July conditions, you can visit Araruama weather in July.
In comparing the weather of September and August, both months exhibit warm temperatures, but September generally feels slightly warmer. The minimum temperature in September is 16°C (61°F), compared to 14°C (58°F) in August, while the average temperature also rises to 23°C (73°F) from 21°C (70°F). Despite both months experiencing a maximum temperature of 32°C (90°F-91°F), September sees a slight decrease in total precipitation, with 61 mm (2.4 in) over 8 days, while August records 68 mm (2.7 in) over 9 days. Interestingly, humidity remains consistent at 75% for both months. For a closer look at August's weather patterns, you can visit Araruama weather in August.
September typically enjoys warm temperatures, with a minimum of 16°C (61°F) and a maximum of 32°C (91°F), while October sees a slight rise in the minimum to 17°C (62°F) and a higher maximum of 33°C (92°F). Both months have an average temperature of around 23°C (73°F) to 24°C (74°F), making them quite comfortable. However, October tends to be wetter, with precipitation increasing to 107 mm (4.2 in) over 15 days compared to September's 61 mm (2.4 in) over 8 days. Despite a slight decrease in humidity from September to October, the weather remains pleasantly mild. For more details, you can check Araruama weather in October.
In September, the weather is characterized by warm temperatures, with a minimum of 16°C (61°F) and an average of 23°C (73°F), peaking at a comfortable 32°C (91°F). This month sees moderate precipitation, totaling 61 mm (2.4 in) across about 8 days, alongside a humidity level of 75%. In contrast, November tends to be slightly cooler, with minimum temperatures hitting 17°C (63°F) and a similar average of 23°C (74°F). However, it experiences a significant increase in rainfall, accumulating 192 mm (7.6 in) over 16 days, resulting in higher humidity at 79%. For a closer look at what to expect, visit Araruama weather in November.
In September, the weather is warm with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), and an average of 23°C (73°F). The month sees about 61 mm (2.4 in) of precipitation over 8 days, accompanied by a humidity level of 75%. In contrast, December offers slightly warmer conditions with a minimum temperature of 18°C (65°F) and an average high of 31°C (89°F), averaging 25°C (77°F). However, it is also much wetter, experiencing a significant increase in precipitation to 181 mm (7.1 in) over 17 days, while humidity rises to 81%. For more detailed information, you can check out Araruama weather in December.
As September rolls in, Araruama experiences a delightful transition into spring, showcasing a noticeable warmth compared to the cooler winter months. With an average temperature around 23°C, residents enjoy pleasant days under the sun, accompanied by intermittent rainfall which keeps the landscape lush and vibrant. The humidity hovers around 75%, providing a moderate tropical feel, while the occasional showers—spreading over about eight days—bring a refreshing touch to the warm climate. This month's weather beautifully balances warmth and moisture, making it a perfect time to explore the natural beauty of the region. For a deeper understanding of what to expect throughout the year, visit Araruama Climate.