Last updated: August 21, 2025
In August, Narita, Japan experiences a dynamic climate, with temperatures soaring to a maximum of 36°C (97°F) and averaging around 28°C (82°F), offering warm and humid conditions ideal for summer activities. The minimum temperature dips to a comfortable 18°C (64°F) during the cooler nights. However, this month also brings significant rainfall, with an average precipitation of 102 mm (4.0 in) spread across 14 days, resulting in an humidity level of approximately 87%. While the weather can be unpredictable, the vibrant atmosphere of Narita continues to beckon visitors despite the occasional summer shower.
In August, Narita, Japan, experiences warm and humid weather, with temperatures ranging from a minimum of 18°C (64°F) to a sweltering maximum of 36°C (97°F). The average temperature sits comfortably at 28°C (82°F), making it one of the hottest months of the year. This trend of soaring temperatures continues from July, which also boasts high averages, signaling a peak during the summer months. As the heat wraps around the city, residents and visitors alike enjoy the vibrant atmosphere, but should also be prepared for the occasional late summer rain. The warmth of August beautifully contrasts with the briskness of January, showcasing a clear seasonal transition in Narita’s climate throughout the year.
In August, Narita, Japan, experiences a notable shift in precipitation patterns, recording 102 mm (4.0 in) of rain over 14 days. This marks a decline from the heavy rainfall seen in July, where the city was drenched with 223 mm (8.8 in) across 17 days. As summer approaches its end, the precipitation levels in August remain consistent with the earlier months of the season, but they take on a more moderate tone compared to the peak of the rainy season. While rain continues to fall, the drop from July suggests a gradual easing, setting the stage for the heavier autumn rains that follow in September and October. Overall, August serves as a transitional month, balancing the remnants of summer showers with a hint of the impending fall wetness.
In Narita, Japan, the month of August sees humidity levels at 87%, showcasing a slight decline from the peak of 94% reached in July. This trend highlights the summer's intense moisture, with humidity rising steadily from 68% in March to its summer highs. As August approaches its end, the humidity begins to ease, foreshadowing the gradual transition into the milder conditions of autumn. This pattern reflects a typical seasonal rhythm, where the sweltering heat of summer gives way to the comfortable crispness of fall, allowing residents and visitors alike to enjoy the best of both worlds.
In August, Narita, Japan, experiences a UV Index of 11, categorized as extreme, with a remarkably short burn time of just 10 minutes. This trend of high UV levels continues from the preceding months of June and July, where the index also peaked at 11. The rising UV Index from earlier in the year highlights a significant seasonal shift; notably, it escalated from a moderate 3 in January to a striking 11 by May and persisting into summer. As the summer sun intensifies, it's crucial for residents and visitors to stay informed about sun safety measures. Stay protected and learn more about local UV conditions at Narita UV Index.
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In August, Narita, Japan basks in the glory of 302 hours of sunshine, marking the peak of the summer season. This month stands out brightly against the backdrop of the year, showcasing a significant increase compared to the spring and early summer months. From July's 263 hours to August's sun-drenched days, the transition is palpable and invites both locals and tourists to revel in the warm brilliance. Following a gradual rise from January's mere 187 hours, the trend of increasing sunlight hours culminates in a sunlit August, setting a perfect stage for outdoor activities and vibrant festivals. As autumn approaches with September's 245 hours, the charm of Narita remains, though the summer sun will soon give way to shorter days, reminding us to embrace the warmth while it lasts.
In Narita, Japan, August brings a 37% chance of sunny weather, reflecting a slight uptick from the preceding months. While July sees a modest 34% likelihood of sunshine, August's figures suggest that the summer is still making its presence felt before the seasonal transition. Observing the broader trend, the likelihood of sunshine tends to improve as the year progresses, peaking during the late autumn and winter months with November and December recording 58% and 63% respectively. However, the summer months, especially June and July, experience lower percentages, hinting at the charm of humidity and rain typical for this period. Overall, while August does not promise extensive sunshine, it remains a vibrant time to enjoy Narita's summer ambiance.
In August, Narita, Japan, enjoys a generous 13 hours of daylight, reflecting a slight decrease from the height of summer but still providing ample time for outdoor activities. The trend of increasing daylight begins in March, peaking during the summer months of May through July, where the sun graces the skies for an impressive 14 hours. As the seasons shift towards autumn, daylight gradually wanes, with September seeing a reduction to 12 hours. This ebb and flow of daylight throughout the year not only marks the passage of time but also invites residents and visitors alike to savor the vibrant summer evenings before the days shorten further.
In August, Narita, Japan, experiences a gentle average wind speed of 3.5 m/s (8 mph), maintaining the same refreshing breeze as in both March and April. Following the warmer summer months of June and July, where winds notably decrease to their lowest at 2.6 m/s, the winds pick up again, creating a pleasant contrast to the surrounding heat. This slight uptick in wind speed symbolizes the transition toward the cooler months ahead, as September brings a subtle decrease to 3.3 m/s. Overall, the summer winds in Narita demonstrate a dynamic flow, weaving through the seasonal changes while offering a refreshing respite.
Weather in Narita varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Narita, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather. In August, temperatures soar with a minimum of 18°C (64°F) and an average high reaching 36°C (97°F), accompanied by high humidity at 87%. Rainfall is relatively frequent, with precipitation on 14 days totaling 102 mm (4.0 in). In stark opposition, January experiences much colder temperatures, with a minimum of -6°C (21°F) and an average high of only 17°C (64°F). The month is also drier, featuring just 52 mm (2.1 in) of precipitation over six days and lower humidity at 70%. To delve deeper into the specifics of January weather in Narita, you can visit Narita weather in January.
August and February present a stark contrast in weather patterns. August typically experiences warm temperatures, with a minimum of 18°C (64°F) and an average of 28°C (82°F), peaking at 36°C (97°F). It also comes with high humidity at 87% and substantial rainfall, totaling 102 mm (4.0 in) over 14 days. On the other hand, February is considerably cooler, with temperatures ranging from a chilly -3°C (28°F) to a mild 20°C (68°F), averaging only 6°C (44°F). Precipitation in February is less frequent, accumulating 46 mm (1.8 in) over 8 days, and the humidity is noticeably lower at 69%. For more detailed weather conditions in February, you can refer to Narita weather in February.
August and March present starkly contrasting weather conditions. In August, temperatures soar with a minimum of 18°C (64°F) and an average high reaching up to 36°C (97°F), accompanied by high humidity at 87%. The month sees considerable rainfall, totaling 102 mm (4.0 in) over approximately 14 days. In contrast, March experiences much cooler temperatures, with a minimum of -1°C (31°F) and an average high of 23°C (74°F). Precipitation in March is slightly higher at 136 mm (5.4 in), spread across 13 days, but humidity is lower at 68%. For a detailed look at weather specifics, you can refer to Narita weather in March.
August and April exhibit striking contrasts in weather conditions. In August, temperatures soar with a minimum of 18°C (64°F) and an average of 28°C (82°F), peaking at a scorching 36°C (97°F), accompanied by high humidity at 87%. This month sees about 102 mm (4.0 in) of rainfall over approximately 14 days. In contrast, April offers a much milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a pleasant average of 14°C (58°F) and a maximum of 27°C (81°F). While it's a wetter month than August with 116 mm (4.6 in) of precipitation over 11 days, the humidity is lower at 73%. For more details on April weather specifically, you can refer to Narita weather in April.
When comparing the weather in August and May, one can see distinct differences. August tends to be warmer, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 36°C (97°F), while May is significantly cooler, with temperatures fluctuating between 8°C (47°F) and 32°C (90°F). Additionally, August experiences higher humidity at 87%, compared to May’s 81%, making the summer month feel more tropical. Interestingly, while August has slightly less precipitation overall at 102 mm (4.0 in) over 14 days, May has a higher total of 128 mm (5.0 in) over 12 days, indicating that May can be quite rainy despite its cooler temperatures. For more detailed information about May weather specifically, you can check Narita weather in May.
In comparing the weather between August and June, August tends to be warmer, with average temperatures around 28°C (82°F) and maximums reaching up to 36°C (97°F). In contrast, June has cooler temperatures, with an average of 22°C (72°F) and a maximum of 33°C (91°F). Interestingly, while August sees about 102 mm (4.0 in) of rainfall over 14 days, June is wetter overall, with 161 mm (6.3 in) of precipitation across 13 days. Both months exhibit high humidity levels, around 87% in August and slightly higher at 88% in June, contributing to a muggy atmosphere. For a more detailed insight into the weather patterns, you can refer to Narita weather in June.
In comparing the weather between July and August, August offers a slightly warmer average temperature of 28°C (82°F) compared to July's 26°C (79°F). Both months share the same minimum and maximum temperatures, with July peaking at 36°C (98°F) and August at 36°C (97°F). Notably, August sees reduced precipitation, totaling 102 mm (4.0 in) over 14 days, whereas July has significantly higher rainfall at 223 mm (8.8 in) over 17 days. Humidity also remains high in both months, with August averaging 87% compared to July's 94%. For a more detailed look at July's weather, check out Narita weather in July.
August and September exhibit notable differences in weather patterns. August tends to be warmer, with average temperatures around 28°C (82°F) and maximums reaching up to 36°C (97°F). In contrast, September experiences cooler conditions, with an average of 24°C (75°F) and maximums peaking at 35°C (94°F). While August has a high humidity level of 87% and sees about 102 mm (4.0 in) of rainfall over 14 days, September is slightly less humid at 83% but has significantly higher precipitation, totaling 186 mm (7.3 in) over 17 days. For a closer look at September's weather, you can check out the details here: Narita weather in September.
August and October present quite distinct weather patterns. In August, temperatures are notably warmer, with daily averages around 28°C (82°F) and a peak of 36°C (97°F), making it the height of summer. Despite the heat, it also experiences significant humidity at 87% and 102 mm of precipitation over 14 days. In contrast, October brings cooler temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 31°C (88°F), with an average of 19°C (66°F). While it still has 14 days of precipitation, the amount increases to 254 mm (10.0 in), and humidity drops to 78%. This transition marks a shift from the sweltering summer heat of August to the more temperate and wetter conditions of October. For more details, you can check Narita weather in October.
August and November present a striking contrast in weather conditions. In August, temperatures soar with a minimum of 18°C (64°F) and can reach up to a sweltering 36°C (97°F), accompanied by high humidity at 87%. Rainfall is frequent, occurring on 14 days and totaling 102 mm (4.0 in). In contrast, November brings a significant drop in temperatures, with a minimum of 3°C (37°F) and a maximum of 23°C (75°F), providing a much cooler climate. The average temperature in November is only 14°C (57°F), and while precipitation remains similar at 101 mm (4.0 in), it occurs over fewer days—just 10. Humidity also decreases to 74%, making November a much drier month compared to the summer heat of August. For more detailed information, you can check Narita weather in November.
August and December present stark contrasts in weather. In August, temperatures range from a minimum of 18°C (64°F) to a scorching maximum of 36°C (97°F), with an average of 28°C (82°F) and high humidity levels at 87%. The month also sees considerable rainfall, with about 102 mm (4.0 in) over 14 days. In contrast, December experiences much cooler temperatures, with a minimum of -3°C (27°F), an average of 8°C (46°F), and a maximum of 21°C (71°F). Precipitation decreases significantly to 71 mm (2.8 in) over just 8 days, and humidity drops to 72%. For further details on December weather, you can check Narita weather in December.
August in Narita presents a vibrant contrast to the cooler months, with hot temperatures dominating the scene, making it one of the warmest periods of the year. The high humidity amplifies the heat, enveloping the region in a sweltering embrace that is felt during both day and night. While thunderstorms may roll in, bringing occasional rain, the sun often shines bright, offering a true taste of summer. If you're curious about how August compares to other months in terms of climate, you can find more detailed information here: Narita Climate.