Last updated: February 24, 2025
September in Sao Vicente, Portugal offers a delightful blend of warm weather and refreshing coastal breezes. With maximum temperatures reaching 27°C (81°F) and an average of 21°C (70°F), the month is characterized by its pleasant climate, perfect for outdoor activities. However, expect cooler evenings as temperatures can dip to a minimum of 17°C (63°F). Rainfall is minimal, with an average of 18 mm (0.7 in) over 6 days, allowing ample opportunity to enjoy the sun. Coupled with high humidity at 81%, September presents a vibrant atmosphere, making it an ideal time to explore the natural beauty and cultural offerings of this charming island.
In September, São Vicente, Portugal, enjoys a delightful transition from summer to autumn, with temperatures that evoke a perfect balance for outdoor activities. The month starts with a minimum of 17°C (63°F), rising to an average of 21°C (70°F), and peaking at a comfortable 27°C (81°F). This slight dip in temperature from the sweltering heights of August signals the onset of milder days, making it an ideal time for both tourists and locals to explore the picturesque landscapes and vibrant culture. As you meander through the charming streets or relax along the coast, the warmth of the lingering summer sun combined with the refreshing evening breeze creates an inviting atmosphere perfect for any adventure.
In September, São Vicente experiences a notable shift in precipitation with an average of 18 mm (0.7 in) over 6 days. This marks an uptick from the drier summer months, where rainfall is scarce, with only a meager 8 mm recorded in August. The slight increase in precipitation foreshadows the onset of autumn, paving the way for the wetter months ahead, as October typically brings more substantial rain at 57 mm (2.3 in). This gradual transition highlights September as a bridge between the dry summer and the wetter fall, fostering a refreshing change in the landscape.
As September rolls into Sao Vicente, Portugal, humidity levels begin to ease slightly from the summer peak, settling at a comfortable 81%. This month marks a subtle decline compared to the sweltering 83% of both July and August, making it a refreshing transition into the fall. Earlier in the year, humidity hovered between 75% and 78%, creating a relatively stable environment. Interestingly, the late spring and summer months exhibit a gradual rise, culminating in the highest readings of the year. As autumn approaches, the humidity dips again, reminiscent of the more temperate conditions found in the beginning and end of the year, offering a pleasant reprieve from the intense summer heat.
In September, the UV Index in Sao Vicente, Portugal reaches a significant level of 10, indicating a very high exposure category, which means that one could experience sunburn in just 15 minutes. This marks a slight decline from the peak extreme levels seen in the summer months of June through August, where the Index was consistently at 11. The trend shows that as the summer gives way to autumn, while the UV Index remains elevated, it's crucial for residents and visitors alike to remain vigilant about sun protection. As October approaches, the UV Index will further drop, but September still calls for cautious exposure to the sun. For more detailed information on UV levels, visit Sao Vicente UV Index.
UV Risk Categories
September in São Vicente, Portugal, offers a delightful blend of warmth and sunshine, with 338 hours of sunshine gracing the month. As summer transitions to autumn, this marks a slight dip from the peak 391 hours in July but still showcases a vibrant brightness compared to the earlier months. The trend reveals a steady rise in sunny days from January’s modest 191 hours to the peak summer months, hinting at the region's enticing climate. As October approaches, the days will slowly shorten, with 321 hours expected, but September remains a beautiful time to soak in the lingering rays before the chill of winter sets in.
In September, São Vicente, Portugal, enjoys a notable 45% chance of sunny weather, making it one of the more favorable months for sun-seekers. This slight uptick in sunshine follows the summer peak in July and August, which boasts 63% and 60% chances, respectively. As the season transitions into autumn, the likelihood of sunny days in September remains higher than the preceding months such as April and May, which hover around 38% to 44%. It’s a time when the warmth of summer lingers, offering a delightful opportunity for visitors and locals alike to bask in the golden glow of the sun before the rainy months set in. Overall, September strikes a lovely balance between enjoying the end of summer and transitioning into the cozy autumn days ahead.
As summer fades into autumn in Sao Vicente, Portugal, September brings a gentle decline in daylight duration, with the sun gracing the skies for 12 hours each day. This month marks a transition from the long, sun-drenched days of summer, where July and June enjoy the year's peak of 14 hours of daylight, to the cozy, shorter days of fall. October and November follow suit, with daylight dwindling to 11 hours and finally settling back to 10 hours in December. This gradual shift underscores the rhythmic beauty of the seasons, inviting a serene welcome to the rich colors and comforting ambiance of autumn.
As September rolls into São Vicente, Portugal, the gentle embrace of the wind lingers with an average speed of 2.8 m/s (6 mph), mirroring the calm of August. This slight dip from the summer highs signals the transition to autumn, setting the stage for cooler breezes as the year progresses. The early months of the year saw a gradual increase in wind speeds, peaking in December at 3.4 m/s (8 mph), while September's winds remind us of nature’s ebb and flow. As summer's vibrancy fades, this soft, consistent breeze invites residents and visitors alike to savor the serene beauty of the coastline, creating the perfect ambiance for leisurely strolls and tranquil moments by the sea.
The weather in Sao Vicente changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sao Vicente and find detailed weather information for every month.
September and January offer contrasting weather experiences. In September, temperatures are warmer with a range from a minimum of 17°C (63°F) to a maximum of 27°C (81°F), and an average of 21°C (70°F). The month sees relatively low precipitation of 18 mm (0.7 in) over about 6 days, accompanied by higher humidity levels at 81%. In comparison, January brings cooler temperatures, with a minimum of 9°C (49°F), an average of 15°C (59°F), and a maximum of 22°C (71°F). This month experiences more rainfall, totaling 38 mm (1.5 in) across 7 days, and slightly lower humidity at 75%. For more detailed information, you can visit Sao Vicente weather in January.
September offers a warmer climate with average temperatures ranging from a comfortable 17°C (63°F) at night to a high of 27°C (81°F) during the day. The month sees relatively low precipitation, with only 18 mm (0.7 in) over about 6 days, and humidity levels are higher at 81%. In contrast, February experiences cooler temperatures, with an average of 14°C (58°F) and a maximum of 22°C (72°F). Precipitation is significantly heavier during this month, totaling 60 mm (2.4 in) across approximately 9 days, although humidity is somewhat lower at 75%. For more details about the February weather in Sao Vicente, you can visit Sao Vicente weather in February.
September and March present distinct weather characteristics. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 27°C (81°F), with an average of 21°C (70°F). This month experiences relatively low precipitation at 18 mm (0.7 in) over about 6 days, coupled with high humidity at 81%. In contrast, March features cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 24°C (76°F), averaging 14°C (58°F). Precipitation is notably higher at 52 mm (2.1 in) across approximately 9 days, and humidity is slightly lower at 78%. For more details on the weather in March, you can check out Sao Vicente weather in March.
When comparing the weather in September and April, notable differences emerge in temperature and precipitation. September enjoys milder temperatures, with a minimum of 17°C (63°F) and a maximum of 27°C (81°F), presenting a pleasant average of 21°C (70°F). In contrast, April's temperatures are cooler, ranging from a minimum of 11°C (51°F) to a maximum of 23°C (74°F), averaging 15°C (60°F). Furthermore, September experiences significantly less rainfall, totaling only 18 mm (0.7 in) over about six days, while April sees 56 mm (2.2 in) distributed over twelve days, resulting in a wetter month. Despite the greater humidity in September at 81%, April still maintains a relatively high humidity level of 78%. For a closer look at April's weather, you can visit Sao Vicente weather in April.
September typically enjoys warmer temperatures compared to May, with average highs reaching 27°C (81°F) versus 26°C (78°F) in May. While September has a higher average temperature of 21°C (70°F), May starts off cooler with a minimum of 12°C (53°F). Both months experience relatively similar precipitation levels, but May sees slightly more rain at 23 mm (0.9 in) compared to September's 18 mm (0.7 in), both spread over six days. Humidity remains high in both months, with September at 81% and May at 77%. For a detailed look at the weather specifics in May, check out Sao Vicente weather in May.
In comparing the weather between September and June, September typically enjoys warmer temperatures, with averages around 21°C (70°F) and maximums reaching 27°C (81°F), compared to June's averages of 18°C (65°F) and maximums of 26°C (79°F). While September sees slightly less precipitation at 18 mm (0.7 in) over 6 days, June experiences more rainfall, totaling 36 mm (1.4 in) across 7 days. The humidity levels are quite similar, with September at 81% and June at 80%. For more detailed information, you can check out Sao Vicente weather in June.
When comparing the weather in September to that of July, both months exhibit relatively mild temperatures, with September boasting a slightly warmer average temperature of 21°C (70°F) compared to July's 20°C (68°F). The maximum temperatures are also similar, reaching up to 27°C (81°F) in September and 27°C (82°F) in July. However, September experiences significantly more precipitation, totaling 18 mm (0.7 in) over about 6 days, while July is much drier, with only 7 mm (0.3 in) falling over just 1 day. Humidity levels remain comparable, with September at 81% and July at 83%. For those interested in the specifics of July’s weather, more detailed information can be found Sao Vicente weather in July.
In comparing the weather of September and August, both months experience similar temperature ranges, with September showing a minimum of 17°C (63°F) and an average of 21°C (70°F), while August has the same minimum but a slightly higher average of 21°C (71°F). However, August tends to be warmer overall, peaking at 29°C (84°F) compared to September's maximum of 27°C (81°F). Precipitation is more frequent in September, with 18 mm (0.7 in) over 6 days, while August sees significantly less rain at 8 mm (0.3 in) across just 2 days. Humidity levels are also comparable, with September at 81% and August slightly higher at 83%. For more specific details, you can check Sao Vicente weather in August.
In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 27°C (81°F), with an average temperature of 21°C (70°F) and relatively low precipitation of 18 mm (0.7 in) over 6 days. The humidity levels stand at 81%, creating a warm and moderately humid atmosphere.
Transitioning into October, the weather remains comfortably warm but sees a slight decrease in the minimum temperature to 14°C (58°F) and an average of 20°C (67°F). Interestingly, October boasts a higher maximum temperature of 28°C (82°F) but experiences a significant increase in precipitation, totaling 57 mm (2.3 in) over 10 days, while humidity stays close at 80%. For more detailed information about October weather in this region, you can visit Sao Vicente weather in October.
September's weather offers warmer temperatures, with minimums around 17°C (63°F) and an average of 21°C (70°F), peaking at 27°C (81°F). It is relatively dry, experiencing only 18 mm (0.7 in) of precipitation over about 6 days, and the humidity is quite high at 81%. In contrast, November cools down significantly, with a minimum of 10°C (51°F) and an average of 17°C (63°F), while still allowing for warmer highs up to 26°C (79°F). However, it's much wetter, with 67 mm (2.6 in) of rain falling over approximately 15 days, accompanied by lower humidity at 75%. For a more detailed look at the weather trends during this month, you can check Sao Vicente weather in November.
September tends to be warmer and more humid compared to December, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 27°C (81°F) and an average temperature of 21°C (70°F). Moreover, September experiences less rainfall, with only 18 mm (0.7 in) spread over 6 days. In contrast, December sees cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 21°C (70°F), averaging at 16°C (61°F). The total precipitation increases significantly to 58 mm (2.3 in) over 11 days, but the humidity is slightly lower at 75%. For more details on December weather, you can check Sao Vicente weather in December.
As September unfolds in Sao Vicente, the weather begins to transition, bringing a delightful mix of warmth and occasional moisture that sets it apart from the preceding summer months. With temperatures averaging a comfortable 21°C (70°F) and maximums reaching up to 27°C (81°F), the days remain inviting yet cooler than the height of summer. Although the chance of rain increases slightly with around six days of precipitation, the overall ambiance remains pleasant, with humidity levels hovering around 81%. This combination makes September a unique and enjoyable time to experience the natural beauty of the area before the autumn chill arrives. For more insights into the region's weather patterns, be sure to explore Sao Vicente Climate.