Last updated: August 27, 2025
In August, Sigtuna, Sweden experiences a delightful range of weather, marked by a maximum temperature peaking at 31°C (88°F) and a pleasant average of 17°C (63°F). Nights can be cool, with temperatures dipping to a minimum of 4°C (39°F). The month sees an average precipitation of 74 mm (2.9 in), occurring over 12 days, which contributes to the lush greenery of the region. With a humidity level of 77%, the air remains comfortably moist, creating an inviting atmosphere for outdoor activities and exploration. Visitors can relish the warm summer days while being prepared for the occasional shower, making August a vibrant time to experience the charm of Sigtuna.
In Sigtuna, Sweden, August offers a delightful respite from the colder months, with temperatures ranging from a comfortable 4°C (39°F) at night to a warm 31°C (88°F) during the day. The average temperature settles at 17°C (63°F), making it one of the more pleasant months of the year, ideal for outdoor activities and exploring the picturesque surroundings. This month marks a significant transition, as the warmth starts to wane from the peak summer months of June and July, where daytime highs often exceed 30°C (86°F). With the temperature declining as autumn approaches, August is a vibrant time in Sigtuna, inviting both locals and visitors to soak in the last of the summer sun before the cooler days set in.
In August, Sigtuna experiences a notable increase in precipitation, recording 74 mm (2.9 in) over 12 days, making it one of the wettest months of the year. This uptick follows the patterns observed in the summer months, where both June and July saw substantial rainfall, although August stands out for its heavier downpours. The rise in rainfall not only contributes to lush landscapes but also sets the stage for the transition into autumn. Interestingly, this peak in August precipitation contrasts with the more moderate levels seen in earlier months, reflecting a seasonal shift as days start to shorten and temperatures cool. This trend highlights how Sigtuna's weather evolves, with August acting as a bridge between the vibrant summer rains and the crisper fall environment ahead.
In Sigtuna, Sweden, August marks a subtle shift in humidity levels as the summer month averages around 77%, slightly higher than the preceding month of July, which experienced the lowest humidity at 74%. This increase signals a gradual transition from the drier summer months back towards the more humid conditions characteristic of autumn. As the year progresses, August's humidity starts to mirror the higher levels seen earlier in spring and winter, with September jumping back up to 85%. Notably, Sigtuna's humidity remains quite high year-round, peaking in the colder months of January and November, where it hovers around 90%. This trend highlights Sigtuna's distinctive climate, where humidity plays a significant role in shaping the seasonal experience.
In August, Sigtuna experiences a moderate UV Index of 5, indicating a shift from the high levels seen in July. With a recommended burn time of 30 minutes, it's essential for residents and visitors to be mindful of sun exposure during this month. This decline from July's high-risk category suggests a gradual transition towards safer sun conditions as summer wanes. Nevertheless, taking precautions—such as wearing sunscreen and protective clothing—remains important to enjoy the Swedish summer safely. For comprehensive UV index data throughout the year, be sure to check out Sigtuna UV Index.
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In Sigtuna, Sweden, August shines brightly with 406 hours of glorious sunlight, marking a vibrant conclusion to the summer months. This isn't just a standalone phenomenon; it's part of a larger trend where the city basks in increasing light from January’s mere 71 hours to a peak in July with 483 hours. As the warm days of July fade, August still holds onto a significant amount of sunshine, offering a comfortable transition into autumn. The gradual decrease in daylight hours begins in September, where the sun dips to 301 hours, signaling the approaching cooler months. Thus, August serves as a crucial bridge, allowing residents and visitors alike to revel in lingering summer warmth before the shorter days set in.
In August, Sigtuna experiences a 33% chance of sunny weather, marking a notable decrease from the sunny peaks of July, where the likelihood climbs to 54%. This decline signifies a transitional phase as summer begins to give way to autumn. Interestingly, August's sunshine potential is somewhat reminiscent of the sunnier days in April and May, yet it notably lags behind the sun-drenched days of June and July. As the summer draws to a close, residents and visitors alike may want to temper expectations for sunny days, while still cherishing the warmth that lingers in the late summer air.
In Sigtuna, Sweden, August brings a delightful transition in daylight as the summer months begin to fade. With 15 hours of daylight, August serves as a gentle farewell to the longer days of June and July, which basked in an impressive 18 hours. This gradual decrease hints at the approaching autumn, yet the warmth of summer lingers in the air, encouraging outdoor adventures and evening strolls. As daylight hours wane from their peak, the shift from the vibrant 17 hours in July to a still generous 15 hours in August marks a subtle reminder of nature's rhythm, paving the way for the cozy, shorter days of fall.
As summer gracefully transitions to autumn in Sigtuna, Sweden, the August wind brings a gentle sigh of 3.1 m/s (or about 7 mph), mirroring the calm demeanor of the month. This slight uptick from the summer lows marks a notable shift, as the warm breezes of June and July hovered closer to 2.6 m/s and 2.9 m/s, respectively. August stands as a bridge between the languid summer days and the brisker winds that start to emerge in September and October, where speeds return to a more invigorating 3.3 m/s and 4.0 m/s. Overall, the trend highlights a gradual increase in wind intensity as the year progresses, inviting anticipation for the dynamic changes that autumn will soon unfold.
Weather in Sigtuna varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Sigtuna, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather patterns. In August, temperatures range from a mild 4°C (39°F) at night to a warm 31°C (88°F) during the day, with an average of 17°C (63°F). This month sees a fair amount of precipitation, totaling 74 mm (2.9 in) over about 12 days, coupled with a humidity level of 77%.
In contrast, January is characterized by much harsher conditions, with temperatures plummeting to a minimum of -23°C (-10°F) and an average of -1°C (31°F), peaking at a maximum of just 10°C (51°F). The month experiences less precipitation overall, totaling 34 mm (1.4 in) across only 7 days, but the humidity is notably higher at 90%. For more details on January weather specifically, check Sigtuna weather in January.
August and February present strikingly contrasting weather conditions. In August, temperatures range from a minimum of 4°C (39°F) to a maximum of 31°C (88°F), accompanied by higher humidity at 77% and an average of 17°C (63°F). This month experiences relatively frequent precipitation, with about 74 mm (2.9 in) falling over 12 days. In stark contrast, February brings much colder conditions, with temperatures ranging from a frigid -17°C (1°F) to a maximum of 12°C (53°F). The average temperature of February is -1°C (30°F), featuring lower precipitation at 32 mm (1.2 in) over just 7 days, while humidity remains high at 88%. For more details on February weather specifics, you can check Sigtuna weather in February.
August and March present strikingly different weather conditions. In August, temperatures range from a comfortable minimum of 4°C (39°F) to a warm maximum of 31°C (88°F), accompanied by higher rainfall of 74 mm over 12 days, making it a humid month with an average humidity of 77%. In contrast, March experiences much colder temperatures, with a minimum of -15°C (5°F) and a maximum of 18°C (65°F), and significantly less precipitation at 41 mm over 8 days, despite a higher humidity level of 89%. For a closer look at March weather in Sigtuna, you can check this link: Sigtuna weather in March.
When comparing the weather in August and April, we see notable differences in temperature and precipitation patterns. August tends to be much warmer, with average temperatures reaching 17°C (63°F) and highs of 31°C (88°F), whereas April has a cooler average of 5°C (42°F) and can drop to a chilly minimum of -9°C (17°F). Precipitation is also more frequent in August, occurring on about 12 days with a total of 74 mm (2.9 in), compared to April’s 7 days of rainfall totaling just 28 mm (1.1 in). Despite April experiencing higher humidity at 85%, August's humidity remains fairly high at 77%, contributing to a warmer climate overall. For a more detailed look at April's weather, you can visit Sigtuna weather in April.
When comparing the weather in August and May, we see notable differences in temperature and precipitation. August experiences warmer temperatures, with an average of 17°C (63°F) and maximums reaching up to 31°C (88°F), while May has a cooler average of 11°C (52°F) and a maximum of 30°C (85°F). Both months have similar humidity levels at 77%, but August sees slightly more precipitation, accumulating 74 mm (2.9 in) over 12 days compared to May's 56 mm (2.2 in) across 10 days. For more detailed information, you can check Sigtuna weather in May.
When comparing the weather in August and June, we see some notable similarities and differences. Both months experience an average temperature of 17°C (63°F), with maximums reaching 31°C (88°F) in August and 89°F in June. However, August tends to have slightly higher minimum temperatures, averaging 4°C (39°F) compared to June's 3°C (37°F). Precipitation levels are also higher in August, with 74 mm (2.9 in) over 12 days, compared to June's 58 mm (2.3 in) over 8 days. Humidity remains fairly consistent, with August at 77% and June at 76%. For a closer look at the weather specifics for June, you can check Sigtuna weather in June.
In comparing the weather between July and August, we see that July tends to be slightly warmer with an average temperature of 18°C (65°F) and a maximum of 32°C (91°F), while August offers a cooler average of 17°C (63°F), with maximums reaching 31°C (88°F). Precipitation is more frequent in August, totaling 74 mm (2.9 in) over 12 days compared to July's 53 mm (2.1 in) over 10 days. Additionally, humidity levels in August are slightly higher at 77%, compared to July's 74%. For a more detailed look at July's weather, you can visit Sigtuna weather in July.
August and September offer distinct weather patterns as summer transitions into fall. In August, temperatures range from a minimum of 4°C (39°F) to a maximum of 31°C (88°F), with an average of 17°C (63°F). The month experiences relatively high humidity levels at 77% and sees about 74 mm (2.9 in) of precipitation over 12 days.
In contrast, September brings cooler temperatures, ranging from a low of -1°C (30°F) to a high of 27°C (80°F), with an average of 13°C (55°F). Precipitation decreases to 51 mm (2.0 in) across 8 days, while humidity rises slightly to 85%. This shift reflects the onset of autumn, making September noticeably cooler and wetter compared to the warm and humid days of August. For more details, visit Sigtuna weather in September.
In August, the weather is considerably warmer, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 31°C (88°F) and an average of 17°C (63°F). This month experiences fairly high humidity at 77% and sees about 74 mm (2.9 in) of precipitation over 12 days. In contrast, October brings cooler conditions, with temperatures dipping to a minimum of -4°C (25°F) and averaging 8°C (46°F), reaching up to 19°C (67°F) at most. While precipitation is slightly lower at 68 mm (2.7 in), the humidity increases to 89%, contributing to a distinctly crisp autumn feel. For more details on what to expect, you can check Sigtuna weather in October.
August weather is characterized by relatively warm temperatures, with an average of 17°C (63°F) and maximum highs reaching up to 31°C (88°F). It typically experiences higher humidity levels at 77% and sees about 74 mm (2.9 in) of precipitation over 12 days. In contrast, November brings a significant drop in temperature, averaging just 4°C (39°F) and maxing out at 15°C (59°F), with minimum lows plunging to -13°C (9°F). The month is marked by increased humidity at 90%, but less precipitation overall, totaling 42 mm (1.6 in) over 9 days. For a closer look at specific conditions, check out Sigtuna weather in November.
August and December present contrasting weather patterns. In August, temperatures range from a mild minimum of 4°C (39°F) to a maximum of 31°C (88°F), with an average of 17°C (63°F). The month experiences about 74 mm (2.9 in) of precipitation over 12 days, accompanied by a humidity level of 77%. In stark contrast, December sees much colder temperatures, with a minimum of -18°C (1°F) and a maximum of only 9°C (49°F), averaging around 0°C (33°F). Although December has slightly lower precipitation at 56 mm (2.2 in) over 13 days, it has a higher humidity level of 87%. For more insights on December weather, check out Sigtuna weather in December.
As August rolls in, Sigtuna experiences a delightful blend of summer warmth and the early whispers of autumn. With temperatures reaching a pleasant average of 17°C, warmer days often peak at a sultry 31°C, inviting outdoor adventures. However, the lingering humidity at 77% and scattered precipitation—typically over 12 days—remind visitors that summer is on the verge of transition. This unique weather pattern differentiates August from the more stable conditions of preceding months, creating a dynamic backdrop for those exploring this charming Swedish town. For more insights into Sigtuna's climatic variations, check out Sigtuna Climate.