Izumo weather by month & the best time to visit
Japan · beach resort · humid subtropical climate
The best time to visit Izumo is May — its sunniest month (Sunshine Score 65/100), with August and October close behind. Izumo averages about 1,647 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 124 mm of rain in May.
When is the best time to visit Izumo?
For sunshine, the best time to visit Izumo is May, then August and October. The dullest month is January (0/100, 132 mm of rain). The full month-by-month picture is in the table below.
How sunny is Izumo?
Izumo isn't a sunny place by world standards: about 1,647 hours of sunshine a year. 65 Sunshine Score points separate May (65) from January (0), so the month you pick matters. It ranks #56 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. The year's 1,738 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 8° / 46°F | 5° / 41°F | 132 mm | 2 | 15° / 59°F |
| February | 6 | 9° / 48°F | 5° / 41°F | 108 mm | 2 | 14° / 57°F |
| March | 22 | 12° / 54°F | 7° / 45°F | 124 mm | 4 | 13° / 55°F |
| April | 45 | 16° / 61°F | 11° / 52°F | 116 mm | 5 | 16° / 61°F |
| May | 65 | 21° / 70°F | 15° / 59°F | 124 mm | 6 | 19° / 66°F |
| June | 61 | 25° / 77°F | 20° / 68°F | 182 mm | 6 | 22° / 72°F |
| July | 61 | 28° / 82°F | 24° / 75°F | 221 mm | 7 | 26° / 79°F |
| August | 65 | 30° / 86°F | 25° / 77°F | 125 mm | 7 | 28° / 82°F |
| September | 61 | 26° / 79°F | 22° / 72°F | 204 mm | 6 | 28° / 82°F |
| October | 63 | 21° / 70°F | 17° / 63°F | 138 mm | 4 | 23° / 73°F |
| November | 45 | 16° / 61°F | 12° / 54°F | 111 mm | 2 | 21° / 70°F |
| December | 10 | 10° / 50°F | 7° / 45°F | 153 mm | 1 | 17° / 63°F |
Sea temperature in Izumo by month
The sea off Izumo is warmest in August at around 28°C / 82°F, and coolest in March at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Izumo compares month by month: Izumo vs Hiroshima · Izumo vs Okayama · Izumo vs Tottori · Izumo vs Yonago · all comparisons
Izumo: questions and answers
What kind of destination is Izumo?
Izumo is a beach resort in Japan with a humid subtropical climate — the sea reaches 28°C at its warmest and is swimmable (21°C+) about 6 months a year.
How many hours of sunshine does Izumo get a year?
Izumo gets about 1,647 hours of sunshine a year, at its best around May.
When is the best time to visit Izumo?
The sunniest time to visit Izumo is May, when the Sunshine Score peaks at 65/100 (with August and October close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Izumo?
January is the least sunny month in Izumo, scoring 0/100 with about 132 mm of rain.
What is the sea temperature in Izumo?
The sea in Izumo ranges from about 13°C (March) to 28°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Izumo?
The typical midday UV index in Izumo peaks around 7 (high) in July, easing to about 1 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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