Spring (March–May): Average 50–64°F, mild climate, but with relatively high rainfall, especially in April and May. Common activities: Flower viewing (e.g., cherry blossoms, depending on blooming conditions), hiking. Recommended clothing: Light jacket, long-sleeved shirt, raincoat is essential.
Summer (June–August): Average 71–81°F, hot and humid, with the most rainfall in June, relatively less in July and August. Common activities: Beach activities, mountain climbing (beware of high temperatures). Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
Autumn (September–November): Average 55–77°F, comfortable climate, but with relatively high rainfall in September. Common activities: Maple leaf viewing (depending on leaf color change), outdoor excursions. Recommended clothing: Long-sleeved shirt, light jacket, pay attention to warmth due to large temperature difference between morning and evening.
Winter (December–February): Average 39–44°F, cold and dry, with low rainfall. Common activities: Skiing (depending on snowfall), hot spring trips. Recommended clothing: Thick coat, warm clothing, scarf, gloves.
Yachimata climatological average
Annual average temperature: approx. 60.8°F / Annual rainfall: approx. 1441 mm / Summer humidity: 70%–80% / Rainiest month: June
Yachimata monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
39.7°F
41
February
42.1°F
65.2
March
50.2°F
120.4
April
59.4°F
158.3
May
64.6°F
174.4
June
71.6°F
216.1
July
80.6°F
108.4
August
81.5°F
98.8
September
77°F
204.1
October
64.8°F
131.2
November
55.9°F
93.1
December
44.1°F
30.3
Yachimata weather for the next seven days
12/29
Monday
Patchy rain nearby
48.7°F/44.5°F
12/30
Tuesday
Sunny
54.4°F/41.9°F
12/31
Wednesday
Overcast
52.3°F/43.5°F
1/1
Thursday
Patchy rain nearby
46.9°F/41.5°F
1/2
Friday
Moderate rain
41.3°F/36.7°F
1/3
Saturday
Partly Cloudy
42°F/36.5°F
1/4
Sunday
Sunny
48.5°F/36°F
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