Last updated: August 21, 2025
In March, the weather in Oeiras, Brazil presents a fascinating blend of warmth and moisture. With maximum temperatures soaring to 35°C (94°F) and an average hovering around 27°C (81°F), the month offers balmy days perfect for outdoor activities. However, the minimum temperatures dropping to 21°C (70°F) suggest comfortable evenings. Rainfall is notable, with 159 mm (6.3 in) recorded over 22 days, contributing to a high humidity level of 93%. This combination of warmth and wetness creates a lush, vibrant environment, making March a unique time to experience the rich biodiversity of the region.
In March, Oeiras, Brazil, experiences pleasantly warm temperatures, with minimal fluctuations that hint at the approaching end of summer. The average temperature hovers around 27°C (81°F), while the minimum dips slightly to 21°C (70°F), making the nights comfortably cool. Daytime highs reach a balmy 35°C (94°F), offering ideal conditions for enjoying the great outdoors. This trend of consistently warm temperatures continues into the following months, with April showing similar warmth; however, March stands out as a transitional month, setting the stage for the hotter weeks ahead while still providing a moderate climate for all to enjoy.
In March, Oeiras, Brazil, experiences significant rainfall, totaling 159 mm (6.3 inches) over 22 days. This makes it one of the more humid months of the year, following a notably wet February that recorded 217 mm (8.5 inches) across 21 days. As the region transitions into the drier months, April sees a sharp decrease in precipitation, dropping to 86 mm (3.4 inches) despite maintaining a similar number of rainy days. The patterns indicate a clear wet season in early months, with March standing out as a pivotal point before the significant decline in rainfall through late spring and summer. This cyclical trend underscores the region's tropical climate, characterized by a pronounced rainy season, followed by a stark shift towards drier conditions.
As March settles over Oeiras, Brazil, the humidity begins to rise, reaching a notable 93%. This increase marks a peak in the early months of the year, following January and February's already high levels of 90% and 91%, respectively. Such moist conditions are characteristic of the region as it transitions from the sweltering summer to a more temperate autumn. After March, the humidity experiences a gradual decline, dropping to 92% in April and continuing its descent through the months, suggesting a shift in weather patterns as the dry season approaches. This trend of high humidity in the first quarter highlights the area's tropical climate and sets the stage for the drier months ahead.
In March, Oeiras, Brazil experiences a noteworthy spike in its UV Index, soaring to 15—the highest recorded so far this year. This places the region squarely in the extreme exposure category, with a burn time of just 10 minutes for unprotected skin. Following the trend from January and February, which held steady at a UV Index of 14, the intensifying sun in March serves as a reminder of the importance of sun safety as the days grow longer and warmer. As we move into April, the UV Index slightly dips back to 14, yet it remains crucial for residents and visitors alike to stay vigilant against harmful UV exposure. For more information on UV trends throughout the year, visit Oeiras UV Index.
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March shines brightly in Oeiras, Brazil, boasting 303 hours of glorious sunshine. This marks a significant increase from January's 251 hours and February's 265 hours, signaling the arrival of warmer days. As the region transitions into the vibrant months of April and May, sunshine hours continue to climb, peaking at 327 hours in May, just a breath away from June’s impressive 325 hours. This upward trend not only promises more opportunities for outdoor adventures during the early months of the year but also sets the stage for the breathtaking spectacle of sunny days that Oeiras is known for. With summer months ahead, residents and visitors alike can look forward to the sun gracing them even more as it approaches its annual peak in late summer and early fall.
In Oeiras, Brazil, the likelihood of sunny weather sees a significant increase as March approaches, with chances jumping to 34% compared to the lower percentages in the earlier months of the year; January and February boast just 23% and 18% respectively. This trend continues into April, where sunny days remain promising at 31%, reflecting a gradual transition towards more favorable weather conditions. As the region moves into late spring and summer, the probability of sunshine surges, peaking in the height of summer with 81% in August. Thus, March marks a noteworthy turning point in the seasonal shift toward sunnier skies, setting the stage for the increasingly bright days ahead.
In Oeiras, Brazil, the daylight duration remains remarkably consistent throughout the year. In March, residents can enjoy a full 12 hours of daylight, mirroring the months of January and February. This stable pattern persists until the natural dip in April, where sunlight reduces to 11 hours. As the year progresses into the cooler months, daylight remains at 11 hours through mid-year and into August. Interestingly, as spring approaches, September heralds a return to 12 hours of daylight, continuing through November and December. This rhythm of light exemplifies the tropical climate of Oeiras, making it an inviting locale for both relaxation and adventure throughout the year.
In March, Oeiras, Brazil experiences a gentle breeze with an average wind speed of 1.6 m/s (4 mph), slightly up from February's calm. This transitional month hints at the approaching seasonal shifts, as winds gradually start to pick up. Notably, after March, the wind speeds begin to rise more significantly—reaching 2.1 m/s (5 mph) in April and steadily increasing through the months of May and July. This pattern highlights a clear trend towards breezier conditions as winter gives way to spring, inviting both residents and nature enthusiasts to relish the refreshing atmosphere. The slight uptick in March sets the stage for the stronger winds that are characteristic of the later months, embodying the dynamic climate of Oeiras.
Weather in Oeiras varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Oeiras, focusing on differences in temperature, rainfall, humidity, and UV levels.
March and January present distinct weather patterns, with March typically featuring slightly cooler temperatures. In January, the minimum temperature reaches 22°C (71°F), while the average is 28°C (82°F) and peaks at a scorching 39°C (103°F). In contrast, March sees a minimum of 21°C (70°F), an average of 27°C (81°F), and a maximum of 35°C (94°F). Additionally, precipitation is more abundant in March, with 159 mm (6.3 in) falling over 22 days, compared to January's 82 mm (3.2 in) over just 14 days. Humidity is also slightly higher in March at 93%, compared to January's 90%.
For a more detailed look into January's weather specifics, you can check Oeiras weather in January.
In comparing the weather conditions between March and February, both months exhibit warm temperatures, but there are notable differences in precipitation and humidity. March has a minimum temperature of 21°C (70°F) and a maximum of 35°C (94°F), with an average temperature similar to February at 27°C (81°F). However, March experiences less precipitation, with 159 mm (6.3 in) falling over 22 days, compared to February's 217 mm (8.5 in) over 21 days. Interestingly, February also boasts a slightly higher maximum temperature at 37°C (98°F) and a lower humidity of 91%, compared to March's 93%. For more details on February weather, you can check Oeiras weather in February.
In comparing the weather in March and April, we see some notable similarities and differences. Both months feature a minimum temperature of around 21°C (70°F) and an average temperature of 27°C (81°F), while the maximum temperatures hover close, with March at 35°C (94°F) and April slightly higher at 35°C (95°F). However, April experiences significantly less rainfall, with 86 mm (3.4 in) compared to March’s 159 mm (6.3 in), and fewer rainy days, dropping from 22 days in March to just 14 in April. Humidity sees a slight decrease, with March at 93% and April at 92%. For more detailed weather information, you can check Oeiras weather in April.
In March, temperatures range from a minimum of 21°C (70°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F). However, this month is quite rainy, accumulating 159 mm (6.3 in) of precipitation over 22 days and featuring a high humidity level of 93%. In contrast, May brings warmer conditions, with an average temperature of 29°C (84°F) and maximum highs reaching 37°C (98°F). Precipitation drops significantly in May to just 13 mm (0.5 in) over 3 days, and the humidity decreases slightly to 87%. For more details on the specifics of May weather, you can visit Oeiras weather in May.
March and June exhibit distinct weather patterns. In March, temperatures range from a minimum of 21°C (70°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F). The month is characterized by high humidity at 93% and significant rainfall, accumulating 159 mm (6.3 in) over 22 days. In contrast, June presents milder conditions, with temperatures ranging from 20°C (69°F) to 37°C (98°F) and an average temperature of 29°C (84°F). This month is markedly drier, with just 3 mm (0.1 in) of precipitation and no recorded rainy days, accompanied by a lower humidity level of 77%. For more detailed information, you can check Oeiras weather in June.
March and July present significantly different weather patterns. In March, temperatures range from a minimum of 21°C (70°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F). The month is marked by high humidity at 93% and considerable precipitation, totaling 159 mm (6.3 in) over 22 days. In contrast, July experiences warmer conditions with an average temperature of 29°C (84°F), peaking at 38°C (101°F), while maintaining the same minimum of 21°C (70°F). Notably, July is dry, with no recorded precipitation and a lower humidity level of 66%. For more specifics on the weather during this month, you can visit Oeiras weather in July.
March and August display contrasting weather patterns, showcasing significant differences in temperature and humidity. In March, temperatures range from a minimum of 21°C (70°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F). This month also experiences considerable rainfall, with 159 mm (6.3 in) of precipitation over 22 days and high humidity levels at 93%. In contrast, August features warmer temperatures with a minimum of 20°C (68°F) and a maximum of 38°C (101°F), averaging 30°C (86°F). Notably, August is characterized by a dry climate, receiving no rainfall and having a much lower humidity level of 58%. For more detailed insights, you can check Oeiras weather in August.
In March, the weather is characterized by high humidity and frequent rainfall, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 35°C (94°F), and an average of around 27°C (81°F). With 159 mm (6.3 in) of precipitation over 22 days, the month can feel quite wet and muggy. In contrast, September sees a significant shift, with temperatures rising even higher, reaching up to 40°C (104°F) on the hottest days and averaging 31°C (89°F). Remarkably, September experiences no rainfall at all, fostering a much drier atmosphere with humidity dropping to just 51%. For more details, you can check Oeiras weather in September.
March and October showcase distinct weather patterns. In March, temperatures range from a minimum of 21°C (70°F) to a maximum of 35°C (94°F), with an average of 27°C (81°F). This month experiences significant rainfall, with 159 mm (6.3 in) across 22 days, and high humidity at 93%. In contrast, October sees warmer temperatures, with a minimum of 23°C (74°F) and a maximum soaring to 40°C (104°F), averaging 32°C (90°F). Notably, this month has much lower precipitation at just 20 mm (0.8 in) over two days, accompanied by a considerable drop in humidity to 45%. For more details, check out Oeiras weather in October.
In March, temperatures are generally warm, with a minimum of 21°C (70°F) and an average of 27°C (81°F), peaking at 35°C (94°F). This month experiences substantial rainfall, totaling 159 mm (6.3 in) over 22 days, resulting in high humidity levels at 93%. In contrast, November is hotter, with minimum temperatures around 22°C (72°F) and an average of 30°C (86°F), reaching a maximum of 39°C (103°F). Notably, November sees significantly less precipitation, with only 51 mm (2.0 in) falling over just 6 days, and the humidity drops to 41%. For more specific insights into November weather, you can check Oeiras weather in November.
In March, Oeiras experiences warm temperatures with a minimum of 21°C (70°F) and an average of 27°C (81°F), peaking at 35°C (94°F). The month is characterized by significant precipitation, totaling 159 mm (6.3 in) over 22 days, along with high humidity levels at 93%. In contrast, December sees slightly warmer temperatures, with a minimum of 22°C (72°F) and an average of 29°C (84°F), reaching a maximum of 39°C (102°F). The precipitation in December is much lower, at 81 mm (3.2 in) over just 10 rainy days, and the humidity drops to a more comfortable 67%. For more details on December weather in Oeiras, you can visit Oeiras weather in December.
As March unfolds in Oeiras, it presents a unique blend of warmth and humidity that sets it apart from other months. With an average temperature hovering around a comfortable 27°C, days can still soar to a peak of 35°C, creating an inviting atmosphere for outdoor activities. However, the high humidity levels and frequent precipitation, totaling 22 days of rainfall, add a refreshing contrast to the soaring temperatures, making the landscape lush and vibrant. This month, characterized by its variable conditions, often invites residents and visitors alike to embrace the beauty of the local climate. For a deeper dive into Oeiras’s weather patterns, check out Oeiras Climate.