Spring (March–May): 42–59°F on average, mild climate, but still cool in early spring with occasional rain. March has more rainfall. Popular activities: flower viewing, coastal hiking. Recommended clothing: light jacket, comfortable long pants, casual shoes.
Summer (June–August): 67–77°F on average, hot and humid, frequent rainfall, with the most rainfall in July. Popular activities: swimming at the beach, sightseeing boat tours. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): 49–71°F on average, comfortable and pleasant climate, warm in early autumn, turning cooler in late autumn, with gradually decreasing rainfall. Popular activities: maple leaf viewing, seafood tasting. Recommended clothing: comfortable long-sleeved clothing, light jacket.
Winter (December–February): 34–38°F on average, cold and dry, less rainfall. Popular activities: onsen experience, indoor activities. Recommended clothing: warm clothing, thick jacket, scarf, hat.
Sanriku climatological average
Annual average temperature: approx. 54.9°F / Annual rainfall: approx. 1440 mm / Summer humidity: 70%–80% / Rainiest month: July
Sanriku monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
34.7°F
78.6
February
36°F
34.8
March
42.6°F
148.1
April
53.4°F
112.9
May
59.9°F
101.7
June
67.3°F
131.7
July
75.9°F
228.2
August
77.4°F
214.9
September
71.4°F
170.1
October
59.4°F
105.2
November
49.3°F
71.6
December
38.3°F
42.2
Sanriku weather for the next seven days
11/1
Saturday
Heavy rain
65.6°F/53.9°F
11/2
Sunday
Patchy rain nearby
56.3°F/48.4°F
11/3
Monday
Patchy rain nearby
53.4°F/41.4°F
11/4
Tuesday
Sunny
57.1°F/42.1°F
11/5
Wednesday
Patchy rain nearby
60.5°F/51.1°F
11/6
Thursday
Moderate rain
57°F/51.3°F
11/7
Friday
Partly Cloudy
55.6°F/47.7°F
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