Last updated: August 27, 2025
August weather in Grimstad, Norway is characterized by a pleasant blend of warmth and occasional rain. With maximum temperatures reaching 25°C (77°F) and an average of 16°C (62°F), the month offers a comfortable climate suitable for outdoor activities. However, visitors should be prepared for wet days, as 101 mm (4.0 in) of precipitation falls over 13 days, contributing to an overall humidity level of 78%. This combination of warmth and moisture creates a lush landscape, making Grimstad a picturesque destination during the summer's final stretch.
In August, Grimstad, Norway, basks in the warmth of summer, with temperatures showcasing a pleasant range. The month starts with minimums around 9°C (48°F), echoing the mild nights of July, while daytime highs peak at a comfortable 25°C (77°F). The average temperature settles at 16°C (62°F), striking a delightful balance for outdoor activities. As the season begins to transition toward fall, these warmer temperatures hint at the lingering joy of summer, offering both locals and visitors the opportunity to enjoy festivals, seaside strolls, and the natural beauty that this coastal town has to offer before the crispness of September arrives.
In August, Grimstad, Norway experiences a notable rise in precipitation, with a total of 101 mm (4.0 in), marking one of the wettest months of the year. This uptick is complemented by an increase in rainfall days, reaching 13 days of wet weather. As summer transitions into autumn, August's precipitation prepares the landscape for the upcoming season, contributing to a lush and vibrant environment. This trend continues into September and October, where rainfall peaks, indicating that Grimstad's climate remains dynamic, with September receiving 115 mm and October soaring to 169 mm. Thus, August stands as a pivotal month in the gradual shift towards the wetter autumn months.
In Grimstad, Norway, August brings a slight uptick in humidity levels, averaging around 78%. This increase from the consistent 74% recorded in both June and July indicates the onset of autumn, as the air begins to feel more saturated. Interestingly, while summer months tend to show a dip in humidity, August’s levels still remain notably lower than the 91% humidity of February or the 92% that characterizes the chillier months of late autumn and winter. This trend illustrates a gradual return to the moister conditions of fall, highlighting Grimstad's unique climatic rhythm throughout the year.
In August, Grimstad experiences a UV Index of 6, keeping it in the high exposure category. This reflects a slight decrease from the peak in July, where the UV Index also reached 7. With a burn time of 25 minutes, it's essential for residents and visitors alike to take precautions to protect their skin while enjoying the remaining summer sunshine. As summer winds down, the UV levels in Grimstad begin to transition towards the moderate realm, with September seeing a drop to an index of 4. It’s clear that awareness of UV exposure is crucial during these warmer months. For further details on UV levels throughout the year, check the Grimstad UV Index.
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August in Grimstad, Norway, offers a delightful transition from the sun-drenched heights of summer into the cooler months. With 410 hours of sunshine, this vibrant month typically boasts more daylight than its September counterpart, which experiences a significant drop to 289 hours. Interestingly, August follows a peak in July, where residents basked in 475 hours of sunlight, showcasing the region's longest days of the year. The months leading up to August, particularly June and July, demonstrate a gradual buildup of sunny hours, highlighting the region's reliance on the long summer days to fuel both mood and outdoor activity. However, as autumn approaches, this gradual decline in sunlight reminds us of the fleeting beauty of summer, making August a cherished time to savor the lingering warmth and brightness before the darker months set in.
In Grimstad, Norway, the likelihood of sunny weather experiences a gradual rise as summer approaches, peaking in April with a 66% chance of sunshine. This trend continues into August, where the probability stands at 49%, suggesting that while there is a decent chance of enjoying sunny days, it isn’t guaranteed. Notably, the summer months, particularly July and August, show somewhat moderate sunshine potential, with July at 47% and August slightly better at 49%. This late summer uptick offers an ideal opportunity for outdoor activities, making August a promising time for both locals and visitors to bask in the Norwegian sun while still keeping an eye on the typical variability of coastal weather.
In Grimstad, Norway, the month of August brings a delightful transition as daylight begins to wane after the long, sun-soaked days of summer. With approximately 15 hours of daylight, August marks a gradual shift from the peak of summer brightness in June, where daylight extends to an impressive 18 hours. As the days grow shorter, the lingering light still allows plenty of time for outdoor activities, reflecting a vibrant blend of summer's fading warmth and the approaching autumnal coziness. Following the lively July, August serves as a gentle reminder of the changing seasons, paving the way for the more muted daylight of September, which brings a brisk 12 hours. This trend of gradual reduction in daylight continues through the fall months, showcasing the cyclical nature of time in this picturesque region.
In Grimstad, Norway, the August winds tend to mirror the calm essence of summer, with an average speed of only 4.0 m/s (9 mph). This slight breeze reflects a gradual decreasing trend in wind speed that begins in May, peaking in the earlier months before summer settles in. The gentle winds of August create an inviting atmosphere as they transition into the slightly higher gusts of September at 4.6 m/s (10 mph). Interestingly, the wind speeds in August are relatively consistent with those of July, suggesting a serene coastal environment ideal for leisurely strolls along the shore. As the seasons shift, one can anticipate a brisk revival in the winds with October approaching, where the average speed rises significantly to 5.6 m/s (12 mph), breathing life back into the coastal currents.
Weather in Grimstad varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Grimstad, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present strikingly different weather patterns. In August, temperatures range from a comfortable 9°C (48°F) to a warm 25°C (77°F), with an average of 16°C (62°F). The month experiences about 101 mm (4.0 in) of precipitation over 13 days, accompanied by relatively high humidity at 78%. In contrast, January's weather is significantly colder, with temperatures plummeting from a minimum of -11°C (12°F) to a maximum of just 10°C (49°F), yielding an overall average of only 2°C (36°F). Precipitation in January totals 81 mm (3.2 in) over 12 days, and the humidity is notably higher at 93%. For more details on January weather, check out Grimstad weather in January.
When comparing the weather of August and February, significant differences emerge in temperature and overall climate. August enjoys a milder range with temperatures averaging 16°C (62°F), peaking at 25°C (77°F), while February is considerably colder, averaging just 2°C (35°F), with a maximum of only 10°C (51°F). Both months experience a similar amount of precipitation, around 103 mm (4.0 in), spread over roughly 13 days, indicating a consistent chance of rainy weather. However, February's humidity is higher at 91%, compared to August's 78%, contributing to a more overcast and damp atmosphere. For a closer look at February's conditions specifically, you can check Grimstad weather in February.
August and March present contrasting weather conditions. In August, temperatures range from a minimum of 9°C (48°F) to a maximum of 25°C (77°F), with an average of 16°C (62°F), creating a warm and humid atmosphere with 78% humidity. Precipitation is relatively high, with 101 mm (4.0 in) spread over 13 days. In contrast, March has much colder temperatures, featuring a minimum of -10°C (14°F) and a maximum of 17°C (64°F), and an average of just 3°C (38°F). The precipitation in March is slightly lower at 97 mm (3.8 in) over 12 days but comes with a higher humidity level of 88%. For more detailed information on March weather, you can visit Grimstad weather in March.
When comparing the weather in August and April, notable differences emerge. August enjoys warmer temperatures, with averages around 16°C (62°F) and a maximum reach of 25°C (77°F), while April's temperatures are cooler, averaging just 6°C (44°F) and peaking at 17°C (62°F). Additionally, August sees more precipitation, averaging 101 mm (4.0 in) over 13 days, while April experiences significantly less rainfall, with only 38 mm (1.5 in) across 6 days. Interestingly, April has slightly higher humidity at 83%, compared to August's 78%. For more details, you can visit Grimstad weather in April.
When comparing the weather in August and May, notable differences emerge. August experiences a milder minimum temperature of 9°C (48°F) compared to May's cooler minimum of 1°C (34°F), but both months share a maximum temperature of 25°C (77°F). The average temperature in August is significantly warmer at 16°C (62°F), while May sits at a brisk 11°C (52°F). In terms of precipitation, August has a higher total of 101 mm (4.0 in) over 13 days, compared to May's 83 mm (3.3 in) over 10 days. Humidity levels are also slightly higher in August at 78%, compared to 75% in May. For more details on May's weather, you can visit Grimstad weather in May.
In comparing the weather between June and August, we notice some distinct differences. June typically starts with cooler minimum temperatures around 6°C (43°F) and peaks at a comfortable maximum of 28°C (83°F), with an average temperature matching that of August at 16°C (61°F). In contrast, August has a slightly warmer minimum temperature of 9°C (48°F), but its maximum reaches a lower peak of 25°C (77°F).
Precipitation levels are also noteworthy; August experiences more rain, with 101 mm (4.0 in) over 13 days, compared to June's 88 mm (3.5 in) and 11 days of rain. Additionally, August tends to be more humid at 78% compared to June's 74%. For a closer look at June weather, you can visit Grimstad weather in June.
In comparing the weather between July and August, we see a slight shift in temperatures and precipitation. July typically boasts warmer conditions, with an average temperature of 18°C (64°F) and maximums reaching 27°C (81°F), compared to August, which has an average of 16°C (62°F) and peaks at 25°C (77°F). Additionally, August experiences more rainfall, accumulating 101 mm (4.0 in) over 13 days, whereas July records 88 mm (3.5 in) over just 11 days. Humidity levels are slightly higher in August at 78%, compared to July's 74%. For more detailed information on July’s weather, you can visit Grimstad weather in July.
August and September weather present a noticeable shift in temperature and humidity. August enjoys an average temperature of 16°C (62°F) with a comfortable maximum of 25°C (77°F), while September sees a slight drop in the average to 14°C (57°F) and a minimum temperature fall to 4°C (40°F). Additionally, September experiences increased humidity levels at 86%, compared to August's 78%. Rainfall also rises, with September receiving 115 mm (4.5 in) over 14 days, slightly more than August's 101 mm (4.0 in) over 13 days. For a detailed look at local conditions, you can check out Grimstad weather in September.
August and October present quite different weather patterns. In August, temperatures range from a minimum of 9°C (48°F) to a pleasant maximum of 25°C (77°F), with an average of 16°C (62°F). However, it is a relatively humid month, with an average humidity of 78% and about 101 mm (4.0 in) of precipitation over 13 days. In contrast, October sees a significant drop in temperature, with minimums plummeting to 0°C (32°F) and an average temperature of just 10°C (50°F). While the maximum reaches 17°C (62°F), the month is generally cooler and wetter, receiving 169 mm (6.7 in) of rain across 15 days and an increased humidity of 92%. For more insights into the specific weather conditions, you can check Grimstad weather in October.
August and November exhibit distinct differences in weather conditions. In August, temperatures range from a mild 9°C (48°F) at night to a warm 25°C (77°F) during the day, with an average of 16°C (62°F). The month sees significant rainfall, with 101 mm (4.0 in) of precipitation spread over about 13 days, and humidity levels averaging 78%. In contrast, November brings a much colder climate, with temperatures dropping to a minimum of -6°C (22°F) and reaching a maximum of 14°C (58°F), averaging only 6°C (43°F). The precipitation also increases to 128 mm (5.1 in) over 16 days, accompanied by higher humidity at 92%. For more detailed insights on November weather, you can visit Grimstad weather in November.
August and December in Grimstad showcase stark contrasts in weather. In August, temperatures range from a mild 9°C (48°F) at night to a warm 25°C (77°F) during the day, with an average of 16°C (62°F). While precipitation is relatively high at 101 mm (4.0 in) over 13 days, the humidity remains at a comfortable 78%. In contrast, December brings much colder temperatures, peaking at only 11°C (53°F) and dropping as low as -9°C (15°F) overnight, with an average of just 3°C (38°F). Precipitation increases to 152 mm (6.0 in), spread over 19 days, and humidity rises to a chilly 92%. For more detailed weather information, you can visit Grimstad weather in December.
As August unfolds in Grimstad, it brings a delightful blend of warm temperatures and a hint of summer's tail end. With maximum temperatures peaking around a pleasant 25°C, the month stands out from the cooler summer months while still offering refreshing evenings with lows dipping to 9°C. The average temperature stabilizes at a comfortable 16°C, making it ideal for outdoor activities. However, August is also notable for its increased precipitation, featuring about 13 rainy days and a total of 101 mm of rainfall, suggesting a transition toward the wetter season ahead. The humidity hovers at a balmy 78%, adding to the richness of the coastal atmosphere. For a deeper dive into what to expect throughout the year in this charming coastal town, visit Grimstad Climate.