Saga weather by month & the best time to visit
Japan · beach resort · humid subtropical climate
The best time to visit Saga is October — its sunniest month (Sunshine Score 67/100), with May and June close behind. Saga averages about 1,752 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 117 mm of rain in October.
When is the best time to visit Saga?
For sunshine, the best time to visit Saga is October, then May and June. The dullest month is January (13/100, 71 mm of rain). The full month-by-month picture is in the table below.
How sunny is Saga?
Saga isn't a sunny place by world standards: about 1,752 hours of sunshine a year. 54 Sunshine Score points separate October (67) from January (13), so the month you pick matters. It ranks #43 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 44% of the annual 2,077 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 13 | 10° / 50°F | 3° / 37°F | 71 mm | 2 | 10° / 50°F |
| February | 24 | 12° / 54°F | 4° / 39°F | 99 mm | 3 | 11° / 52°F |
| March | 38 | 15° / 59°F | 6° / 43°F | 131 mm | 4 | 13° / 55°F |
| April | 56 | 19° / 66°F | 10° / 50°F | 167 mm | 5 | 18° / 64°F |
| May | 61 | 24° / 75°F | 15° / 59°F | 186 mm | 6 | 22° / 72°F |
| June | 61 | 27° / 81°F | 19° / 66°F | 333 mm | 6 | 25° / 77°F |
| July | 61 | 30° / 86°F | 24° / 75°F | 352 mm | 7 | 29° / 84°F |
| August | 61 | 31° / 88°F | 24° / 75°F | 225 mm | 7 | 33° / 91°F |
| September | 61 | 28° / 82°F | 21° / 70°F | 201 mm | 6 | 31° / 88°F |
| October | 67 | 23° / 73°F | 16° / 61°F | 117 mm | 5 | 25° / 77°F |
| November | 52 | 17° / 63°F | 11° / 52°F | 103 mm | 3 | 19° / 66°F |
| December | 24 | 12° / 54°F | 6° / 43°F | 92 mm | 2 | 12° / 54°F |
Sea temperature in Saga by month
The sea off Saga is warmest in August at around 33°C / 91°F, and coolest in January at 10°C / 50°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 Saga compares month by month: Saga vs Fukuoka · Saga vs Kumamoto · Saga vs Nagasaki · Saga vs Miyazaki · all comparisons
Saga: questions and answers
What kind of destination is Saga?
Saga is a beach resort in Japan with a humid subtropical climate — the sea reaches 33°C at its warmest and is swimmable (21°C+) about 6 months a year.
How many hours of sunshine does Saga get a year?
Saga gets about 1,752 hours of sunshine a year, at its best around October.
When is the best time to visit Saga?
The sunniest time to visit Saga is October, when the Sunshine Score peaks at 67/100 (with May and June close behind). Expect daytime highs around 23°C / 73°F.
What is the least sunny month in Saga?
January is the least sunny month in Saga, scoring 13/100 with about 71 mm of rain.
What is the sea temperature in Saga?
The sea in Saga ranges from about 10°C (January) to 33°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Saga?
The typical midday UV index in Saga peaks around 7 (high) in July, easing to about 2 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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