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Soma Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Soma year round climate

  • Spring (March–May): Average 43–60°F, mild climate, but March has more rainfall, so please pay attention to weather forecasts. Common activities: Spring outings, flower viewing (such as cherry blossoms, depending on the blooming situation). Recommended clothing: Light jacket, long-sleeved shirt, and bring rain gear.
  • Summer (June–August): Average 68–79°F, hot and humid climate, more rainfall, pay attention to sun protection and heatstroke prevention. Common activities: Swimming at the beach, outdoor recreational activities (pay attention to sun protection and rain). Recommended clothing: Light and breathable short-sleeved clothing, shorts, sun hat.
  • Autumn (September–November): Average 51–73°F, comfortable and pleasant climate, but September has the most rainfall, so please pay attention to the weather. Common activities: Maple leaf viewing (depending on the leaf color change situation), outdoor excursions. Recommended clothing: Long-sleeved shirt, light jacket, and bring rain gear.
  • Winter (December–February): Average 35–39°F, cold and dry climate, less rainfall. Common activities: Indoor activities, onsen experience. Recommended clothing: Warm thick coat, sweater, scarf, gloves.

Soma climatological average

Annual average temperature: approx. 56.8°F / Annual rainfall: approx. 1173 mm / Summer humidity: 70%–80% / Rainiest month: September

Soma monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
36°F
53.4
February
36.9°F
48.1
March
43.5°F
109.9
April
54.1°F
61.4
May
60.6°F
135.1
June
68.4°F
152
July
77°F
144.1
August
79.2°F
102.3
September
73.6°F
166.8
October
61.7°F
83
November
51.6°F
74.2
December
39.7°F
42.8

Soma weather for the next seven days

7/18
Saturday
Mist
77°F/70.5°F
7/19
Sunday
Partly Cloudy
83.1°F/71.5°F
7/20
Monday
Sunny
87.4°F/73.7°F
7/21
Tuesday
Patchy rain nearby
85.5°F/74.4°F
7/22
Wednesday
Mist
83.5°F/72.9°F
7/23
Thursday
Patchy rain nearby
80.6°F/71.8°F
7/24
Friday
Fog
79°F/71°F