August Weather in Sesimbra, Portugal

Last updated: February 24, 2025

In August, Sesimbra, Portugal, offers a delightful Mediterranean climate characterized by warm temperatures and low precipitation. Daily highs can reach up to 34°C (94°F), while the average temperature rests comfortably at 21°C (71°F), allowing for perfect beach days and outdoor exploration. With nighttime lows averaging around 16°C (61°F), evenings remain pleasant for strolls along the coastline. Notably, precipitation is minimal, with only about 3 mm (0.1 in) recorded throughout the month and zero rainy days, ensuring plenty of sunshine and clear skies. The humidity level averages 60%, contributing to a warm yet enjoyable atmosphere, making August an ideal time to visit this picturesque coastal town.

August Temperature in Sesimbra

In August, Sesimbra, Portugal, basks under the warmth of summer with temperatures reaching a delightful maximum of 34°C (94°F). This marks a peak in the seasonal trends, showcasing a significant increase from the cooler months earlier in the year. The average temperature holds steady at a comfortable 21°C (71°F), perfect for beach activities and exploring the stunning coastline. Even the minimum temperatures rise to 16°C (61°F), ensuring pleasant evenings under starry skies. This month effectively captures the essence of a vibrant Mediterranean summer, inviting both relaxation and adventure.

August Weather in Sesimbra: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Sesimbra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545657596466697069655956
Data source: Temperature data for Sesimbra 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.

August Precipitation in Sesimbra

In Sesimbra, Portugal, August stands out as a remarkably dry month, with a mere 3 mm (0.1 in) of precipitation recorded over the entire month, and notably, it is also the only month with zero precipitation days. This dramatic decrease follows a gradual decline in rainfall from June to July, where only 8 mm (0.3 in) and 4 mm (0.2 in)** were observed, respectively. As summer reaches its peak, the region experiences a significant reduction in rainfall, contributing to the sun-soaked days that attract visitors to its stunning coastline. While a slight uptick in precipitation occurs in September, August remains emblematic of Sesimbra's dry summer climate, offering a blissful escape for sun enthusiasts.

August Precipitation Trends in Sesimbra

The chart displays monthly precipitation patterns in Sesimbra, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec345366633184318397054
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sesimbra

In Sesimbra, Portugal, the humidity levels experience a noticeable decline from the start of the year, beginning at a high 85% in January and gradually decreasing to a comfortable 60% in both July and August. This pattern of diminishing humidity creates a more pleasant atmosphere during the peak summer months, ideal for beachgoers and outdoor enthusiasts. As the year transitions into September and October, humidity begins to rise again, reaching 67% and 74% respectively, before surging back to higher levels in the winter months with 83% in November and 85% in December. This cyclical trend highlights Sesimbra's appealing summer climate while preparing residents and visitors for the more humid winter season ahead.

August Average Humidity in Sesimbra

This chart illustrates the average monthly humidity levels in Sesimbra, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sesimbra

In August, Sesimbra, Portugal, experiences a very high UV Index of 9, prompting careful sun safety measures for outdoor enthusiasts. Following a peak in June at 11, the UV levels remain significant throughout the summer months, with exposures generally demanding only 15 minutes before sunburn can occur. With a gradual decline in September to an 8, the region maintains its sun intensity, making it crucial for residents and visitors alike to stay informed and protect their skin. This trend underscores the need for vigilance during the peak summer months, as UV exposure can lead to serious health risks. For more detailed insights and updates, check the Sesimbra UV Index.

Maximum UV Index Levels in Sesimbra for August

The chart shows the monthly maximum UV Index (UVI) for Sesimbra in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Sesimbra August 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.

August Sunshine in Sesimbra

August in Sesimbra, Portugal, shines with an impressive 396 hours of sunshine, making it one of the sunniest months of the year. Just a slight dip from July's peak of 422 hours, August still holds its ground, providing plentiful opportunities for beachgoers and outdoor enthusiasts to bask in the summer warmth. As the summer season gradually transitions towards autumn, the sun-drenched days of August segue into a brisker September, which receives 350 hours of sunlight. The trend evident in this data highlights the vitality of the summer months, with sunshine steadily increasing from the cold winter days of January (186 hours) to reach their zenith in July. Whether you're enjoying the lively atmosphere of local festivals or exploring stunning coastal landscapes, the golden rays of August make Sesimbra a delightful summer escape.

Monthly Sunshine Duration in Sesimbra: August Highlighted

The August sunshine duration represents the total number of hours Sesimbra experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec186h234h309h355h408h412h422h396h350h315h237h227h
Data source: Sesimbra August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sesimbra During August

August in Sesimbra, Portugal, boasts a promising 78% chance of sunny weather, matching the peak summer months of July. As the year progresses, the likelihood of sun consistently increases, starting modestly at 49% in January and reaching impressive heights by mid-summer. The transition from cooler months to warmer ones reveals a clear trend: greater sunshine correlates with rising temperatures, making August a prime time for beachgoers and outdoor enthusiasts alike. With a notable drop in sunny days only occurring as autumn approaches, visitors can confidently anticipate long, sun-soaked days to relish during their August stay.

Percentage of Sunny Days in August in Sesimbra

The chart illustrates the percentage of sunny days in Sesimbra throughout the year, with August 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 Sesimbra experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%23%61%41%59%71%78%78%65%55%69%42%
Data source: Sesimbra August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sesimbra in August

In Sesimbra, Portugal, the daylight duration experiences a remarkable transition throughout the year, peaking in the vibrant summer months. August, with its 13 hours of sunlight, offers a delightful balance as the daylight begins to wane slightly from the midsummer highs of 14 hours observed in June and July. This slight decrease heralds the approach of autumn, yet still provides ample time for beachgoers and outdoor enthusiasts to revel in the sun-drenched days. As the year progresses, daylight gradually diminishes, dipping to 9 hours by December, which accentuates the essence of summer as a cherished time of brightness and warmth in this coastal gem.

Average Daylight Hours in Sesimbra for August

The chart illustrates the variation in daylight duration in Sesimbra throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 48m10h 45m11h 58m13h 13m14h 16m14h 48m14h 31m13h 35m12h 23m11h 8m10h 3m9h 30m
Data source: Sesimbra daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Sesimbra

The August wind in Sesimbra, Portugal, offers a pleasant breeze that averages around 4.9 m/s (11 mph), slightly less than the summer peak experienced in July at 5.4 m/s. This gentle wind is part of a broader trend where wind speeds gradually decrease as summer transitions to autumn. Starting from a robust 5.4 m/s in July, the winds embark on a subtle decline, echoing the changing seasons. As August wraps up, residents and visitors can enjoy the soothing currents that characterize the environment, making it an ideal time for leisurely beach days before the cooler months set in. Overall, the month maintains a sufficient wind flow, ensuring a comfortable atmosphere while hinting at the arrival of softer autumn breezes ahead.

Average August Wind Speed in Sesimbra

The chart displays monthly wind speed patterns in Sesimbra, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.25.24.33.75.35.25.44.9 m/s4.24.04.44.8
Data source: Sesimbra August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Sesimbra Compares to Other Months

The weather in Sesimbra changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sesimbra and find detailed weather information for every month.

August and January present contrasting weather conditions. In August, temperatures typically range from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), providing warm and sunny days with low precipitation of just 3 mm over no rainy days, and a humidity level of 60%. In contrast, January offers a much cooler climate with average temperatures between 4°C (40°F) and 20°C (68°F). This month experiences higher precipitation levels at 34 mm, spread over four days, and a humidity level of 85%, making it feel significantly more damp. For more detailed insights into January's weather, visit Sesimbra weather in January.

August weather typically features warm temperatures with a minimum of 16°C (61°F), an average of 21°C (71°F), and maximum highs reaching 34°C (94°F). This month is characterized by dry conditions, with only 3 mm (0.1 in) of precipitation and no rainy days, along with moderate humidity around 60%. In contrast, February brings much cooler weather, with temperatures ranging from a minimum of 5°C (42°F) to an average of 13°C (56°F) and a maximum of 21°C (71°F). Rainfall is noticeably higher in February, with 53 mm (2.1 in) over about 6 days, and humidity levels rise to 75%. For more detailed information, you can visit Sesimbra weather in February.

In comparing the weather between August and March, August features a much warmer climate, with average temperatures reaching around 21°C (71°F) and maximums soaring up to 34°C (94°F). In contrast, March presents cooler conditions, with an average temperature of 14°C (58°F) and highs only reaching 24°C (75°F). While August is characterized by minimal precipitation and humidity levels around 60%, March sees significantly more rainfall, averaging 66 mm (2.6 in) over approximately 8 days, along with a higher humidity level of 72%. For more detailed information on March weather patterns, you can refer to Sesimbra weather in March.

When comparing the weather in August and April, notable differences in temperature and precipitation are evident. August boasts a warmer climate with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), while April experiences cooler temperatures, averaging between 9°C (48°F) and 24°C (76°F). Additionally, August is characterized by dry conditions, receiving only 3 mm (0.1 in) of precipitation over 0 days, which starkly contrasts with April's much wetter landscape, accumulating 63 mm (2.5 in) of rain over 11 days. Humidity levels are slightly lower in August at 60%, compared to 70% in April, making April feel more humid despite its cooler temperatures. For a more detailed look at April's weather patterns, you can visit Sesimbra weather in April.

When comparing the weather in August and May, it is evident that August tends to be warmer and drier. The average temperature in August reaches around 21°C (71°F), with a maximum of 34°C (94°F), while May has a cooler average of 18°C (64°F) and a maximum of 31°C (87°F). Additionally, August typically experiences much less precipitation, with only 3 mm (0.1 in) over 0 days, whereas May sees 31 mm (1.2 in) spread across 4 days. Humidity levels are slightly lower in August at 60%, compared to 70% in May, contributing to the overall warmer and more comfortable conditions during the late summer month. For a more detailed look at the weather patterns, check out Sesimbra weather in May.

Comparing the weather in August and June reveals some notable differences in temperatures and precipitation. August tends to be warmer, with minimum temperatures around 16°C (61°F) and maximums reaching as high as 34°C (94°F), compared to June's temperatures that range from 13°C (55°F) to a maximum of 31°C (89°F). Additionally, August is generally drier, experiencing only 3 mm of precipitation with no rainy days, while June has about 8 mm of rain over two days. Humidity levels are fairly similar, with August at 60% and June slightly higher at 63%. For a more detailed look at June weather, you can check Sesimbra weather in June.

In comparison to July, August typically experiences slightly warmer temperatures, with a minimum of 16°C (61°F) and a maximum reaching up to 34°C (94°F), while July has a minimum of 15°C (59°F) and a maximum of 31°C (88°F). Both months maintain an average temperature of around 21°C (70-71°F) and similar humidity levels at 60%. Precipitation in August is notably less, with only 3 mm (0.1 in) over 0 days, compared to July's 4 mm (0.2 in) over 1 day. For more details on July's weather, you can check Sesimbra weather in July.

In August, the weather enjoys warm temperatures, with a minimum of 16°C and a maximum reaching up to 34°C, while the average temperature sits comfortably at 21°C. The month is notably dry, with no recorded precipitation and humidity around 60%. In contrast, September experiences slightly cooler temperatures, with a minimum of 14°C and a maximum of 30°C, maintaining the same average of 21°C. However, September brings increased rainfall, totaling 18 mm over 2 days, accompanied by higher humidity levels of 67%. For more details on September's climate, you can check Sesimbra weather in September.

When comparing the weather in August and October, we see notable changes in both temperature and precipitation. August offers a warmer climate, with minimum temperatures around 16°C and afternoon highs peaking at 34°C, accompanied by low humidity levels of 60% and virtually no rainfall. In contrast, October experiences cooler temperatures, with lows dropping to 10°C and average highs of 28°C. This month also sees increased precipitation, totaling 39 mm over about four days, and a higher humidity level of 74%. To explore more about the weather in October, check out Sesimbra weather in October.

In August, the weather is characterized by warm temperatures, with a minimum of 16°C (61°F) and a maximum of 34°C (94°F), resulting in an average of 21°C (71°F). The month sees very little precipitation, with only 3 mm (0.1 in) occurring and humidity at a comfortable 60%. In contrast, November brings much cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 23°C (73°F), averaging around 15°C (60°F). This month also sees significantly more rainfall, with 69 mm (2.7 in) over 9 days, and higher humidity at 83%. For more details on November weather, you can visit Sesimbra weather in November.

August and December exhibit stark contrasts in weather. In August, temperatures range from a mild 16°C (61°F) at night to a scorching 34°C (94°F) during the day, with low humidity at 60% and nearly no precipitation, making it a dry and warm month. In contrast, December sees much cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 18°C (66°F), alongside significant precipitation totaling 54 mm (2.1 in) over seven days, and higher humidity at 85%. These differences highlight how August provides a hot, dry climate while December brings cooler temperatures and increased moisture. For more details, you can check out Sesimbra weather in December.

Compare Sesimbra's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Sesimbra

In August, Sesimbra experiences warm and dry weather, making it stand out from the milder months of spring and autumn. The temperatures soar, with maximums reaching up to 34°C (94°F), while the average is a comfortable 21°C (71°F). The lack of precipitation—just 3 mm over the month—means visitors can enjoy an abundance of sunshine without interruption. Moreover, humidity levels hover around a pleasant 60%, allowing for an enjoyable beach experience. For a deeper dive into the seasonal contrasts and more on the idyllic climate, visit Sesimbra Climate.