Last updated: August 27, 2025
August in Leiden, Netherlands offers a delightful summer experience characterized by a maximum temperature reaching up to 30°C (86°F) and an average of 19°C (66°F), providing a warm backdrop for outdoor activities. With a minimum temperature of 12°C (53°F), the evenings can be pleasantly cool. However, be prepared for some rain, as precipitation totals around 95 mm (3.7 in) over 15 days during the month. The humidity averages at 78%, adding a touch of mugginess to the warm days. Overall, August in Leiden is a charming blend of warmth and occasional rain, perfect for enjoying the rich cultural atmosphere of this picturesque city.
August in Leiden, Netherlands, marks a delightful peak of summer as temperatures rise significantly compared to the earlier months. With a minimum of 12°C (53°F) and an average temperature of 19°C (66°F), it provides a warm yet comfortable climate perfect for outdoor exploration. The maximum temperatures can reach up to 30°C (86°F), offering plenty of sunshine for leisurely activities and vibrant local events. This warm trend, established in July, continues its trajectory into August, creating a pleasant atmosphere that encourages both locals and tourists to enjoy the beautiful canals and historic sites. As summer wanes, the gradual descent into cooler temperatures begins in September, making August a cherished month before the onset of fall.
In August, Leiden experiences a significant uptick in precipitation, with an average of 95 mm (3.7 in) of rain spread over 15 days. This marks the wettest month of the summer, showcasing a notable increase from the preceding months of July and June, which received 68 mm (2.7 in) and 70 mm (2.8 in) respectively. The shift to a wetter August hints at the transition from summer to autumn, where the trend of increased rainfall continues into September, peaking further with 96 mm (3.8 in). As the summer months draw to a close, August's rainy days underscore the region's characteristic climate, reminding residents and visitors alike that even in the height of summer, the potential for showers remains ever-present.
In August, Leiden experiences a noticeable drop in humidity, averaging around 78%, making it the driest month of the year. This decline follows a trend of gradually decreasing humidity from June's 81% and July's 80%, signaling a transition towards late summer. The impact of this lower humidity can be felt in the air, creating a more comfortable atmosphere for outdoor activities. However, as the season shifts into September, humidity levels rise again to 83%, reflecting the city's characteristic fluctuation as it prepares for the onset of autumn.
In August, Leiden experiences a UV Index of 7, placing it in the high exposure category, which means that sun safety measures become increasingly important. This is a slight dip from the peak UV Index of 8 seen in the preceding months of June and July, but the risk remains significant, with a burn time of just 25 minutes. Overall, during the summer months, Leideners are advised to enjoy the sunshine while being mindful of their skin protection, as the UV levels can fluctuate dramatically. For more detailed information on UV levels throughout the year, visit Leiden UV Index.
UV Risk Categories
In August, Leiden basks in a delightful 402 hours of sunshine, mirroring the peak summer luminosity established in the previous months. Following a steady climb from 117 hours in January to a high of 431 hours in July, August marks a slight dip yet maintains an abundance of light, perfect for enjoying the city's scenic canals and historic architecture. As the transition to autumn begins, the sunlit days gradually decline, with September bringing 331 hours. This summer glow, coupled with cool breezes, allows for a harmonious blend of warmth and relaxation, inviting residents and visitors alike to soak in the last of summer's charm before the shorter days set in.
In August, the likelihood of sunny weather in Leiden is 35%, mirroring the generally vibrant summer atmosphere of the month. This percentage reflects a slight drop from the peak sunniness in April and a modest decrease compared to the pleasant conditions seen earlier in the summer months. As summer transitions into autumn, there's a gradual decline in the chances of sun, though August still holds on to a decent chance of bright skies. Following the sunny trend of June and July, August remains a time when residents and visitors alike can expect relatively comfortable weather, making it a popular month for outdoor activities and exploration.
In Leiden, Netherlands, August marks a transition as daylight begins to wane after the vibrant summer months. With about 14 hours of sunlight, August retains a generous amount of daylight, although it's a noticeable drop from July's peak of 16 hours. This decrease foreshadows the gradual shift into autumn, where the daylight diminishes further, dropping to 12 hours in September. The trend throughout the year reveals a steady increase in daylight from winter’s 8 hours in January, peaking in summer, before steadily declining again into the shorter days of winter. This annual rhythm paints a beautiful portrait of seasonal change, where each month brings its own unique blend of light and shadow.
In August, the winds in Leiden pick up slightly, with an average speed of 5.4 m/s (12 mph), subtly reflecting a seasonal shift as summer wanes. This increase from July's calmer breezes at 4.6 m/s (10 mph) captures the essence of late summer, where warm air currents begin to mingle with cooler autumn drafts. Interestingly, the wind speeds during this month align closely with those in April, suggesting a transitional phase that foreshadows the brisker conditions of fall, which arrives with an average wind speed of 6.3 m/s (14 mph) in October. Overall, August serves as a reminder of the changing seasons, with its pleasant yet persistent winds hinting at the transformation just around the corner.
Weather in Leiden varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Leiden, focusing on differences in temperature, rainfall, humidity, and UV levels.
August weather in Leiden offers relatively warm temperatures, ranging from a minimum of 12°C (53°F) to a maximum of 30°C (86°F), with an average of 19°C (66°F). The month experiences significant humidity at 78% and considerable precipitation, totaling 95 mm (3.7 in) over approximately 15 days. In contrast, January is much colder, with temperatures falling between -4°C (25°F) to a maximum of 13°C (55°F), and an average of just 5°C (42°F). Although it is wetter in August, January still sees 66 mm (2.6 in) of rain across 14 days and higher humidity at 87%. To learn more about January weather in Leiden, you can check out Leiden weather in January.
August and February present a stark contrast in weather conditions. In August, temperatures range from a mild 12°C (53°F) at night to a warm 30°C (86°F) during the day, with an average of 19°C (66°F). The month experiences about 95 mm (3.7 in) of precipitation over 15 days, accompanied by a humidity level of 78%. In contrast, February brings much colder temperatures, with lows plummeting to -8°C (19°F) and a maximum of 16°C (60°F), averaging around 5°C (42°F). This winter month has less precipitation at 72 mm (2.8 in) over 13 days, though humidity is slightly higher at 87%. For more details on February weather, you can visit Leiden weather in February.
When comparing August and March weather, the contrast is quite pronounced. August typically experiences a mild climate with average temperatures around 19°C (66°F), peaking at a comfortable 30°C (86°F), while March sees much cooler conditions with an average of only 7°C (44°F) and lows that can reach down to -7°C (20°F). Precipitation in August is higher, with around 95 mm (3.7 in) over 15 days, compared to March's 71 mm (2.8 in) over 14 days. Humidity is also considerable in both months, though slightly higher in March at 86% versus 78% in August. For more specifics on March weather, you can check Leiden weather in March.
When comparing the weather in August and April, significant differences emerge. August tends to be much warmer, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 30°C (86°F), while April has a cooler average ranging from 1°C (35°F) to 24°C (75°F). Additionally, August experiences higher humidity at 78% compared to April's 85%, despite having fewer days of precipitation—15 days in August versus 9 days in April. The total precipitation in August is also greater, at 95 mm (3.7 in), compared to April's 43 mm (1.7 in). For more detailed information on April's weather, you can check Leiden weather in April.
In comparing the weather of August and May, August generally experiences warmer temperatures, with average highs reaching up to 30°C (86°F) compared to May's maximum of 27°C (80°F). The minimum temperatures in August are also higher, starting at 12°C (53°F) compared to May's cooler 4°C (40°F). Additionally, August tends to be more humid at 78% compared to May's 84%, despite having slightly less precipitation overall. May, with 58 mm (2.3 in) of rain over 11 days, offers a more moderate and pleasant climate, as detailed here: Leiden weather in May. In contrast, August has a higher total of 95 mm (3.7 in) of rainfall spread across 15 days, making it a month that is often wetter and more variable.
In comparing the weather between August and June, August typically features warmer temperatures, with an average of 19°C (66°F) compared to June's average of 17°C (62°F). While both months experience moderate highs, August reaches a maximum of 30°C (86°F), slightly above June's peak of 29°C (84°F). Precipitation is more frequent in August, totaling 95 mm (3.7 in) over 15 days, compared to June's 70 mm (2.8 in) across 10 days. Humidity levels remain relatively similar, with August at 78% and June slightly higher at 81%. For more details on June weather specifics, you can visit Leiden weather in June.
In comparing the weather of August and July, August tends to be slightly cooler, with an average temperature of 19°C (66°F) compared to July's 18°C (65°F). However, July experiences higher maximum temperatures, peaking at 33°C (92°F) versus August's maximum of 30°C (86°F). Precipitation is more frequent in August, with 95 mm (3.7 in) falling over 15 days, compared to July's 68 mm (2.7 in) over 13 days. Humidity levels are also similar, with July at 80% and August at 78%. For more detailed insights, you can visit Leiden weather in July.
August and September exhibit notable changes in weather, with September being cooler and slightly wetter. In August, the average temperature hovers around 19°C (66°F), with maximums reaching up to 30°C (86°F), while September sees a drop in average temperature to 16°C (61°F) and maximums of 27°C (81°F). Although both months experience similar precipitation levels, with August recording 95 mm (3.7 in) over 15 days and September slightly higher at 96 mm (3.8 in) over 13 days, September is a touch more humid at 83% compared to August's 78%. For more detailed information, you can explore Leiden weather in September.
August typically offers warmer weather compared to October, with average temperatures ranging from a comfortable 19°C (66°F) to a high of 30°C (86°F). In contrast, October sees cooler temperatures that average around 13°C (56°F), with a maximum of 23°C (74°F), making it a month for warmer layers. While August has less precipitation at 95 mm (3.7 in) over approximately 15 days, October is slightly wetter, receiving 120 mm (4.7 in) across about 17 days. Humidity levels also rise in October, reaching 86% compared to August's 78%. For more details on October weather, you can check Leiden weather in October.
August and November present notable contrasts in weather. In August, temperatures range from a minimum of 12°C (53°F) to a maximum of 30°C (86°F), with an average temperature of 19°C (66°F). The month experiences 95 mm (3.7 in) of precipitation over 15 days, accompanied by relatively high humidity of 78%. In contrast, November sees cooler temperatures, with a minimum of 1°C (33°F) and a maximum of 17°C (63°F), averaging 9°C (48°F). Although it experiences slightly less precipitation at 70 mm (2.8 in), it retains humidity levels at 87% across the same 15 days. For a more detailed look at November's weather, check out Leiden weather in November.
In August, the weather is warm and pleasant, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 30°C (86°F), accompanied by moderate humidity at 78%. However, the month also sees about 95 mm (3.7 in) of precipitation over approximately 15 days. In contrast, December brings a cold chill, with average temperatures hovering between -2°C (28°F) and a maximum of 13°C (55°F). This month tends to be wetter, with around 110 mm (4.3 in) of precipitation spread across 18 days, and increased humidity at 86%. For more specific details about the weather conditions in December, you can visit Leiden weather in December.
As summer peaks in August, Leiden experiences a lively transition where warmth rules the day. With maximum temperatures soaring to 30°C (86°F) and an average of 19°C (66°F), this month offers a delightful contrast to the cooler, wetter months preceding it. Although humidity levels rise, creating a more tropical feel, the city also sees a fair share of rainfall, averaging around 95 mm (3.7 in) across 15 days. This blend of warmth and occasional showers makes August unique, creating a vibrant atmosphere perfect for exploring the outdoors. For a deeper dive into the weather patterns you can expect, visit Leiden Climate.