August Weather in Saint-Denis, France

Last updated: February 26, 2025

In Saint-Denis, France, August brings a blend of warmth and occasional rainfall. With maximum temperatures soaring to 37°C (99°F), the month promises hot summer days alongside an average temperature of 20°C (68°F), making it a time for outdoor activities. Visitors can expect minimum temperatures dipping to 7°C (44°F) during cooler nights. The month records 58 mm (2.3 in) of precipitation over 9 days, contributing to a moderately humid environment with an average humidity of 68%. This mix of heat and humidity enhances the vibrant summer atmosphere, perfect for experiencing the rich culture and landscapes of the region.

August Temperature in Saint-Denis

In August, temperatures in Saint-Denis, France, start to show the height of summer, with a delightful average of 20°C (68°F). The month witnesses a noticeable warmth, peaking at 37°C (99°F), making it one of the hottest times of the year. Even the minimum temperature remains mild at 7°C (44°F), ensuring pleasant evenings for outdoor activities. As summer transitions into fall, August not only brings higher temperatures but also offers a vibrant atmosphere, perfect for enjoying the city's rich culture and history before the cooler months set in. This trend of rising temperatures from June through August illustrates the warm embrace of Parisian summers, captivating residents and visitors alike.

August Weather in Saint-Denis: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Saint-Denis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404346525765686762554643
Data source: Temperature data for Saint-Denis 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 Saint-Denis

In August, Saint-Denis experiences a moderate precipitation level of 58 mm (2.3 in), typically spread over about 9 days. This month marks a slight decrease from the wetter July, which recorded 49 mm, yet it remains consistent with the patterns observed throughout the summer months. Sticking to the seasonal trend, August's rainfall is slightly lower than the earlier summer average, reflecting a gradual transition into the drier autumn period ahead. As the year progresses, one can notice a distinct shift; while late summer remains relatively mild, the subsequent months often see a sharp increase in precipitation, particularly October's peak of 78 mm (3.1 in), indicating that although August is less rainy, it sets the stage for the wetter fall season.

August Precipitation Trends in Saint-Denis

The chart displays monthly precipitation patterns in Saint-Denis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5669753470744959407866102
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint-Denis

In August, Saint-Denis experiences a noticeable dip in humidity, averaging around 68%, which marks the lowest point of the year. This decline follows a pattern of decreasing humidity from the preceding months of July (73%) and June (80%), signaling a shift towards drier conditions as summer transitions towards autumn. However, this brevity of less humid days is often short-lived; after August, humidity levels begin to climb again, rising significantly as autumn approaches, with September returning to 76% and culminating in a rise through the final months of the year, ultimately reaching a peak of 93% in December. This yearly rhythm reflects the climatic variations that characterize the region, making August a brief but refreshing respite from the often-sweltering humidity of earlier summer months.

August Average Humidity in Saint-Denis

This chart illustrates the average monthly humidity levels in Saint-Denis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint-Denis

In August, Saint-Denis experiences a very high UV Index of 8, maintaining the trend of intense sun exposure characteristic of the summer months. With a recommended burn time of just 15 minutes, residents and visitors alike should take precautions to protect their skin, especially as the UV levels mirror those recorded in July. This pattern suggests that the peak of summer sees sustained high UV radiation, following an increase noted from earlier months like May and June. As the season transitions into September, the UV Index thankfully declines to 6, offering a brief respite before cooler months set in. For more insightful details, visit Saint-Denis UV Index.

Maximum UV Index Levels in Saint-Denis for August

The chart shows the monthly maximum UV Index (UVI) for Saint-Denis 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.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Saint-Denis 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 Saint-Denis

As summer reaches its zenith, August in Saint-Denis shines with an impressive 385 hours of sunshine, continuing the trend of luminous days set by the previous months. After a steady ascent from the year's beginning, where January languished at just 124 hours, the city welcomes a glorious peak in sunshine hours during the vibrant summer months. June and July, both basking in over 400 hours, set a high bar, while August gracefully sustains the warm glow just below that threshold. As the days begin to shorten into September, the city will gradually transition from its sun-drenched summer, with bright memories of sunshine that create an inviting backdrop for late summer adventures.

Monthly Sunshine Duration in Saint-Denis: August Highlighted

The August sunshine duration represents the total number of hours Saint-Denis 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.
JanFebMarAprMayJunJulAugSepOctNovDec124h202h270h356h389h409h411h385h323h266h201h159h
Data source: Saint-Denis August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint-Denis During August

In Saint-Denis, France, the likelihood of sunny weather in August stands at 36%, mirroring the preceding months of July and June. This suggests a trend of relatively stable, albeit modest, chances of sunshine during the summer's peak. As we look at the overall progression from January to August, the sunshine probability starts low, peaks in April at 58%, and then gently declines, indicating that while summer offers some hopeful sunny days, August doesn’t significantly enhance the chances of bright weather. Instead, this month maintains a consistent expectation of clouds and sun, a reminder to embrace both the warmth of the season and the possibility of fleeting showers.

Percentage of Sunny Days in August in Saint-Denis

The chart illustrates the percentage of sunny days in Saint-Denis 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 Saint-Denis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%27%45%58%35%36%36%36%40%41%25%25%
Data source: Saint-Denis August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint-Denis in August

In Saint-Denis, France, August brings a delightful transition as daylight begins to wane but still offers 14 hours of sun, a satisfying continuation of the longer days enjoyed in the summer months. This slight decrease follows a peak in June with 16 hours of daylight, marking a bright high point that radiates into the early weeks of July. As August arrives, the lingering warmth begins to hint at the approaching fall, evidenced by the gradual reduction in daylight hours through the subsequent months, leading to 12 hours in September and further down to 10 hours by October. This rhythmic ebb and flow of daylight not only defines the changing seasons but also enriches the vibrant atmosphere of Saint-Denis, making each month a unique experience in this lively suburb.

Average Daylight Hours in Saint-Denis for August

The chart illustrates the variation in daylight duration in Saint-Denis throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 44m10h 9m11h 55m13h 44m15h 18m16h 6m15h 41m14h 17m12h 32m10h 44m9h 7m8h 17m
Data source: Saint-Denis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Saint-Denis

In Saint-Denis, France, the August winds mirror the gentle breezes of summer, averaging 3.2 m/s (7 mph). This month, like July, shows a slight dip in wind speed compared to the lively gusts of May and February, both reaching 4.1 m/s (9 mph). As we transition from the vibrant energy of spring towards autumn, these milder winds become a hallmark of the late summer months, signaling a shift in the seasons. Interestingly, the wind speeds begin to decline further in September, dropping to 2.7 m/s (6 mph), hinting at the quieter, more contemplative nature of the approaching fall. Overall, the trends indicate a gradual cooling and softening of the wind, creating a serene atmosphere in this beautiful region.

Average August Wind Speed in Saint-Denis

The chart displays monthly wind speed patterns in Saint-Denis, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.13.83.44.12.63.23.2 m/s2.73.63.13.8
Data source: Saint-Denis August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Saint-Denis Compares to Other Months

The weather in Saint-Denis 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 Saint-Denis and find detailed weather information for every month.

August and January present strikingly different weather patterns. In August, temperatures range from a cool 7°C (44°F) at night to a scorching max of 37°C (99°F) during the day, with an average of 20°C (68°F). Despite experiencing some rainfall, with about 58 mm (2.3 in) over nine days, humidity levels sit at a moderate 68%. In contrast, January is much colder, with minimum temperatures dipping to -7°C (19°F) and an average of just 5°C (40°F). The maximum temperature reaches only 14°C (58°F), and although precipitation is similar at 56 mm (2.2 in) over ten days, the humidity is notably higher at 91%. For more detailed weather conditions in January, you can visit Saint-Denis weather in January.

August and February present stark contrasts in weather conditions. In August, temperatures soar, with minimums around 7°C (44°F) and maximums reaching up to 37°C (99°F), while the average temperature hovers at a comfortable 20°C (68°F). This month sees moderate precipitation of 58 mm (2.3 in) over about 9 days, accompanied by a humidity level of 68%. In contrast, February experiences much colder weather, with minimums plummeting to -6°C (21°F) and an average temperature of 6°C (43°F). Although February has slightly higher precipitation at 69 mm (2.7 in) over 13 days, the atmosphere feels notably more humid at 89%. For more detailed insights, check Saint-Denis weather in February.

When comparing the weather in August and March, notable differences emerge. August tends to be much warmer, with average temperatures around 20°C (68°F) and maximums reaching up to 37°C (99°F), while March has a much cooler average of 8°C (47°F) and maximums of 24°C (75°F). In terms of precipitation, March receives more rainfall—75 mm (3.0 in) over 15 days compared to August’s 58 mm (2.3 in) over just 9 days. Additionally, March experiences higher humidity levels at 85% compared to 68% in August, contributing to a more damp and chilly environment. For more specific details, visit Saint-Denis weather in March.

April and August present contrasting weather patterns in terms of temperature and humidity. In August, temperatures range from a minimum of 7°C (44°F) to a maximum of 37°C (99°F), with an average of 20°C (68°F), offering warm summer days. In contrast, April experiences cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 27°C (81°F), averaging 11°C (52°F). Precipitation is also higher in August at 58 mm (2.3 in) over 9 days compared to April's 34 mm (1.3 in) over just 7 days. Additionally, humidity levels in August are lower at 68% compared to April's 84%, making April feel more humid despite its cooler temperatures. For more details on the weather in April, visit Saint-Denis weather in April.

In comparing the weather of August and May, we see notable differences in temperature and precipitation patterns. August tends to be warmer, with an average temperature of 20°C (68°F) and maximum highs reaching 37°C (99°F), while the average temperature in May is significantly cooler at 14°C (58°F), peaking at 29°C (85°F). Precipitation levels are also noteworthy; May experiences slightly more rainfall at 70 mm (2.7 in) over 13 days, compared to August's 58 mm (2.3 in) spread over 9 days. Additionally, humidity is higher in May at 82%, versus August's 68%. For more detailed insights on May weather, you can refer to Saint-Denis weather in May.

When comparing the weather in August and June, we see some notable differences. August tends to have slightly warmer temperatures, with an average of 20°C (68°F) and a maximum reaching up to 37°C (99°F), while June's average is a bit cooler at 19°C (66°F) and peaks at 35°C (96°F). In terms of precipitation, June experiences more rain, totaling 74 mm (2.9 in) over 11 days, compared to August's 58 mm (2.3 in) over 9 days. Additionally, humidity is higher in June at 80%, making it feel more muggy, while August sees a slightly lesser humidity level of 68%. For more detailed insights into June weather, visit Saint-Denis weather in June.

In comparing the weather of August and July, both months exhibit relatively warm conditions, but there are notable differences. August has slightly cooler minimum and average temperatures, ranging from a minimum of 7°C to a maximum of 37°C, with an average of 20°C. In contrast, July experiences higher extremes, with temperatures ranging from a minimum of 8°C to a maximum of 41°C, and an average of 20°C. Additionally, while August sees a bit more precipitation at 58 mm over 9 days, July records slightly less at 49 mm over 8 days. Humidity levels are slightly lower in August at 68%, compared to July's 73%. For more details on the weather patterns, you can check Saint-Denis weather in July.

August and September exhibit noticeable differences in weather patterns. August features a broader temperature range with minimums around 7°C (44°F) while peaking at a scorching 37°C (99°F), leading to an average temperature of 20°C (68°F). In contrast, September sees cooler conditions, starting from a minimum of 4°C (40°F) and reaching a maximum of 33°C (91°F), resulting in a lower average of 16°C (62°F). Additionally, while August experiences slightly more precipitation at 58 mm (2.3 in) over 9 days, September is drier with only 40 mm (1.6 in) of rain over the same number of days. Humidity also rises in September to 76%, compared to August's 68%. For more information, check out Saint-Denis weather in September.

August and October exhibit distinct weather patterns, reflecting the transition from summer warmth to autumn chill. In August, temperatures range from a minimum of 7°C (44°F) to a scorching maximum of 37°C (99°F), with an average of 20°C (68°F) and relatively lower humidity at 68%. Precipitation is moderate, with about 58 mm (2.3 in) falling over 9 days. In contrast, October experiences a significant drop in temperature, with a minimum of 2°C (36°F), an average of 13°C (55°F), and a maximum of 26°C (78°F). The month sees increased precipitation, totaling 78 mm (3.1 in) over 12 days, and higher humidity levels at 88%. For a more detailed look at October's conditions, you can check Saint-Denis weather in October.

In August, the weather is significantly warmer, with temperatures ranging from a mild 7°C (44°F) to a scorching 37°C (99°F), averaging around 20°C (68°F). The month sees relatively moderate precipitation of 58 mm (2.3 in) over about 9 days, along with a humidity level of 68%, creating a warm and somewhat humid atmosphere. In contrast, November brings much cooler temperatures, with a minimum of -3°C (27°F) and an average of 8°C (46°F), peaking at 19°C (66°F). The precipitation increases slightly to 66 mm (2.6 in) spread over 14 days, and the humidity rises to 92%, contributing to a more overcast and damp environment. For more detailed insights, you can check Saint-Denis weather in November.

When comparing the weather in August and December, it's clear that the two months present markedly different climates. August experiences a wide temperature range, with minimums around 7°C (44°F) and maximums soaring up to 37°C (99°F), resulting in an average temperature of 20°C (68°F). This month is characterized by relatively lower humidity at 68% and less frequent rainfall, with about 58 mm (2.3 in) of precipitation over 9 days.

In contrast, December brings much cooler conditions, with temperatures dipping to a minimum of -3°C (27°F) and averaging only 6°C (43°F), while maximums reach just 15°C (60°F). The humidity significantly increases to 93%, and it also sees more frequent precipitation, totaling 102 mm (4.0 in) across 16 days. For more information, you can visit Saint-Denis weather in December.

Compare Saint-Denis's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Saint-Denis

In August, Saint-Denis experiences a vibrant mix of warm temperatures and moderate humidity, setting it apart from the cooler months of the year. While daytime highs can soar to an impressive 37°C (99°F), the average temperature remains a pleasant 20°C (68°F), offering a comfortable respite from the summer heat during the evenings. This month also sees a fair amount of rainfall, with 58 mm distributed over approximately 9 days, making August a transitional period where summer begins to yield to the crispness of early autumn. The relatively high humidity of 68% enhances the tropical feel, inviting both adventure seekers and relaxation enthusiasts to explore the diverse offerings of the area. For an in-depth look at weather patterns throughout the year, visit Saint-Denis Climate.