Last updated: August 21, 2025
In July, Suwa, Japan experiences a vibrant and humid climate, characterized by maximum temperatures reaching up to 33°C (91°F) and an average of 22°C (72°F), offering a warm environment perfect for summer activities. However, the month also brings significant rainfall, with 289 mm (11.4 in) of precipitation spread over approximately 19 days, contributing to a high humidity level of 93%. This combination of heat and moisture enhances the lush greenery that defines the region, making July a month of both vibrant landscapes and occasional downpours.
In July, Suwa, Japan, experiences a delightful summer warm-up, with temperatures steadily rising from the milder spring months. The average temperature peaks at a pleasant 22°C (72°F), while daily maximums can soar to 33°C (91°F), reflecting the peak of the summer heat. Nights are comfortably warm with minimums around 14°C (58°F), creating an inviting atmosphere for evening strolls by the lake. As the month progresses, the region transitions from the cool highs of previous months, showcasing the dramatic shift in climate that summer brings, making July a vibrant time to experience Suwa's natural beauty and outdoor activities.
In July, Suwa, Japan, experiences a significant spike in precipitation, receiving an impressive 289 mm (11.4 in) of rain over 19 days. This not only marks the wettest month of the year but also highlights a notable trend in the region's climate, as July stands out against the relatively milder precipitation seen in the preceding months. The transition from June, with 149 mm (5.8 in), to July underscores a pattern of increasing rainfall as summer progresses, setting the stage for lush greenery and vibrant landscapes. Following July, precipitation levels steadily decline, with August seeing 151 mm (5.9 in), indicating a shift as the peak rainy season begins to recede. Overall, July's abundant rainfall significantly shapes the seasonal character of Suwa, reinforcing the importance of advanced weather preparation for residents and visitors alike.
In July, Suwa, Japan, experiences its most oppressive humidity, peaking at an average of 93%. This summer month follows a steady rise in moisture from the cooler winter months, where humidity began at 76% in January and dipped to 70% by March. Notably, June’s soaring 88% creates a closely related precursor to July's sultry conditions. Following July, the temperature begins to cool slightly, and the humidity remains high through August at 90%, before gradually decreasing into the fall. Overall, it's clear that summer in Suwa brings a distinct and lingering wave of humidity, influencing both the climate and the local experience.
In July, Suwa, Japan, experiences its peak UV Index of 12, categorizing it as extreme and necessitating caution during sun exposure. This trend of escalating UV levels begins in March and continues to soar through June and into August, underscoring the need for protective measures against harmful rays during the summer months. With a burn time of just 10 minutes, it's crucial for residents and visitors alike to prioritize sun safety, especially as the index has seen a gradual rise from a moderate level of 4 in January to this summer high. As the season progresses, staying informed about the Suwa UV Index becomes essential for enjoying the sun responsibly.
UV Risk Categories
In July, Suwa, Japan, enjoys an average of 235 hours of sunshine, marking a slight dip from the vibrant rays of May and June. This seasonal shift is characteristic as the summer months typically see fluctuating hours of sunlight. After peaking in the lush days of spring, July's sunshine prepares the way for August, which boasts 285 hours and once again lifts spirits across the region. Collectively, these summer months emphasize a trend where sunshine is abundant, reflecting the idyllic charm of Suwa’s warm, welcoming climate. Whether basking in the sun or participating in local festivities, residents and visitors alike relish the summer glow that makes Suwa a truly captivating destination.
In Suwa, Japan, the likelihood of sunny weather in July stands at 32%, which reflects a slight drop compared to the more optimistic forecasts of the earlier months. While January through April boast higher chances of sunshine, with February peaking at 46%, the summer months tend to usher in cloudier days. As July's sun chances are notably lower than those of October and November, which both enjoy 44% visibility, one can see a distinct shift in weather patterns as summer progresses. This trend indicates that, although July offers opportunities for sun, visitors should still be prepared for overcast conditions as the region transitions into warmer months.
In Suwa, Japan, the July daylight duration maintains a pleasant 14 hours, reflecting the region's steady brightness during the peak of summer. This month, alongside June, showcases the highest daylight hours, presenting long, sunlit days perfect for outdoor activities. As the year progresses, daylight gradually increases from a mere 9 hours in January to its July peak, providing a vibrant transition into the warmer months. Following July, daylight begins to wane slightly, dropping to 13 hours in August, which hints at the encroaching autumn. This rhythmic pattern of increasing and decreasing daylight not only highlights the beauty of the seasonal changes but also influences the lifestyle and activities of the citizens throughout the year.
In July, Suwa, Japan experiences some of the lightest winds of the year, with an average speed of just 1.3 m/s (3 mph). This marks a continuation of a downward trend observed since June, where the winds slowed considerably from the more breezy months of spring, averaging around 2.0 m/s (4 mph) in April and 2.1 m/s (5 mph) in May. As summer settles in, the gentle breeze of July complements the warmer temperatures, creating a serene atmosphere perfect for leisurely outdoor activities. This trend of decreasing wind speeds persists into August, but with a slight uptick to 1.6 m/s (4 mph), hinting at the variability that defines the region’s summer climate. Overall, July's calming winds invite tranquility and relaxation, setting the stage for the vibrant summer days ahead.
Weather in Suwa varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Suwa, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in July and January presents a stark contrast, showcasing the diversity of seasonal climates. In July, temperatures range from a mild 14°C (58°F) at night to a scorching 33°C (91°F) during the day, with high humidity levels reaching 93%. This month also experiences significant precipitation, averaging 289 mm (11.4 in) over 19 days, contributing to a lush, vibrant landscape.
Conversely, January offers a drastically different scene, featuring frigid temperatures that drop as low as -18°C (0°F), with daytime highs only reaching 12°C (53°F). The month sees far less precipitation, averaging 75 mm (3.0 in) over just 12 days, and the humidity levels are lower at 76%. For more insights on what to expect, you can explore Suwa weather in January.
July and February present stark contrasts in weather conditions. In July, temperatures range from a minimum of 14°C (58°F) to a scorching maximum of 33°C (91°F), averaging around 22°C (72°F). This summer month also experiences high humidity at 93% and significant rainfall, with about 289 mm (11.4 in) falling across 19 days. In contrast, February sees much colder temperatures, with a minimum of -18°C (0°F) and a maximum of only 15°C (60°F), averaging -1°C (30°F). Precipitation is more moderate, totaling 80 mm (3.2 in) over just 10 days, and humidity is lower at 74%. For a detailed look at February weather, you can visit Suwa weather in February.
The weather in July contrasts significantly with that of March. In July, temperatures range from a minimum of 14°C (58°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F), making it the warmest month of the year. However, this warmth comes with high humidity levels at 93% and substantial rainfall, totaling 289 mm (11.4 in) over 19 days. In sharp contrast, March exhibits much cooler temperatures, with a minimum of -7°C (19°F) and a maximum of 20°C (68°F), averaging just 4°C (40°F). The precipitation in March is also lower, at 141 mm (5.6 in), occurring over 12 days, and humidity is noticeably lower at 70%. For a more detailed look at the weather trends in March, you can visit Suwa weather in March.
When comparing the weather in July and April, it's clear that July is significantly warmer and wetter. In July, temperatures range from a minimum of 14°C (58°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F), while April experiences much cooler temperatures, with a range from -6°C (21°F) to 26°C (78°F) and an average of only 9°C (48°F). Additionally, July sees a substantial amount of precipitation, with 289 mm (11.4 in) over 19 days and a humidity level of 93%, compared to April's 143 mm (5.6 in) over 13 days and a lower humidity of 74%. For more detailed information about weather conditions in April, you can visit Suwa weather in April.
In comparing the weather of July and May, July is distinctly warmer, with average temperatures soaring to 22°C (72°F) and maximums reaching up to 33°C (91°F). In contrast, May experiences a cooler average of 15°C (58°F) and a maximum temperature of 29°C (85°F). Additionally, July sees significantly more rainfall, with 289 mm (11.4 in) across 19 days, while May has a moderate 155 mm (6.1 in) over 12 days. Humidity levels also peak in July at 93%, compared to May's more comfortable 81%. For a detailed look at the weather specifics for May, you can check Suwa weather in May.
In comparing the weather between June and July, July experiences significantly warmer temperatures, with averages rising from June's 18°C (65°F) to 22°C (72°F). The maximum temperatures also increase, reaching up to 33°C (91°F) in July, compared to June's peak of 29°C (84°F). However, July is characterized by much higher precipitation, totaling 289 mm (11.4 in) over 19 rainy days, whereas June sees 149 mm (5.8 in) across 14 days. Additionally, humidity levels remain elevated in both months, with July averaging at 93% and June at 88%. For more detailed insights on June weather, you can visit Suwa weather in June.
July and August in Suwa present a gradual transition in weather patterns. July sees a broader temperature range with minimums of 14°C (58°F) and maximums reaching up to 33°C (91°F). This month is also characterized by significant rainfall, accumulating 289 mm (11.4 in) over 19 days, along with high humidity levels at 93%. In contrast, August offers slightly cooler minimum temperatures of 12°C (53°F) and maintains a similar maximum of 33°C (92°F). With only 151 mm (5.9 in) of precipitation over 16 days, August experiences less rainfall and a marginally lower humidity at 90%. For more detailed information about the weather in August, visit Suwa weather in August.
In July, temperatures range from a minimum of 14°C (58°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F). The month is characterized by high humidity at 93% and significant rainfall, totaling 289 mm (11.4 in) over 19 days. In contrast, September experiences cooler temperatures, with a minimum of 6°C (42°F), an average of 19°C (66°F), and a maximum of 30°C (86°F). Although it is drier than July, September still sees considerable precipitation, amounting to 171 mm (6.7 in) across 16 days, along with slightly lower humidity at 86%. For more detailed insights on September weather, visit Suwa weather in September.
In July, the weather is marked by warm temperatures, with a minimum of 14°C (58°F) and a sizzling maximum of 33°C (91°F), making it the hottest month of the year. High humidity levels at 93% and substantial precipitation of 289 mm (11.4 in) over 19 days contribute to a muggy atmosphere. In contrast, October sees a significant drop in temperatures, with a minimum of 0°C (33°F) and a comfortable maximum of 26°C (79°F), resulting in an average of 13°C (56°F). Although October experiences slightly less rain—237 mm (9.3 in) over 16 days—and lower humidity at 83%, the cooler temperatures create a refreshing change from the summer heat. For more details about October conditions in the area, check out Suwa weather in October.
July and November present stark contrasts in weather conditions. In July, temperatures range significantly, with minimums around 14°C (58°F) and maximums reaching up to 33°C (91°F), creating a warm and humid atmosphere with an average temperature of 22°C (72°F). This month is also characterized by high precipitation, totaling 289 mm (11.4 in) over 19 rainy days, and a humidity level of 93%. In sharp contrast, November sees much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 18°C (65°F), averaging just 7°C (44°F). Precipitation decreases significantly to 66 mm (2.6 in) over 10 days, and humidity levels drop to 80%. For more detailed insights into November weather, you can visit Suwa weather in November.
In July, the weather is characterized by warm temperatures, with averages around 22°C (72°F) and highs reaching up to 33°C (91°F), accompanied by high humidity levels of 93%. This month also sees significant rainfall, with 289 mm (11.4 in) of precipitation spread over 19 days. In contrast, December brings a stark change, as temperatures drop significantly, averaging just 1°C (34°F) and peaking at 16°C (62°F). The month is drier, with only 84 mm (3.3 in) of precipitation over 12 days and lower humidity at 78%. For more insight into the December weather specifics, you can visit Suwa weather in December.
In July, Suwa experiences a notable shift in weather, characterized by warmer temperatures and increased humidity that set it apart from other months. With daytime highs reaching up to 33°C (91°F) and an average of 93% humidity, the air feels heavy and sultry. This month also brings a significant amount of precipitation, occurring on nearly 19 days, making July one of the wettest months of the year. Despite these damp conditions, the warm evenings, with temperatures dropping to a pleasant 14°C (58°F), offer opportunities for enjoyable summer activities. To explore more about Suwa’s distinct climate patterns, visit Suwa Climate.