Amakusa weather by month & the best time to visit
🇯🇵 Japan · beach resort · humid subtropical climate
The best time to visit Amakusa is October — its sunniest month (Sunshine Score 68/100), with May and June close behind. Amakusa averages about 1,845 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 117 mm of rain in October.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 1,845
- Sunniest month
- October
- Peak score
- 68/100
- Rain / year
- 2,156 mm
- Midday UV at peak
- 8 (very high)
- Sea at warmest
- 31°C / 88°F
- Population
- 83k
- Elevation
- 101 m
When is the best time to visit Amakusa?
For sunshine, the best time to visit Amakusa is October, then May and June. The dullest month is January (19/100, 73 mm of rain). The full month-by-month picture is in the table below.
How sunny is Amakusa?
Amakusa gets a moderate 1,845 hours of sunshine a year. 49 Sunshine Score points separate October (68) from January (19), so the month you pick matters. It ranks #23 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 44% of the annual 2,156 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 19 | 11° / 52°F | 7° / 45°F | 73 mm | 2 | 15° / 59°F |
| February | 23 | 12° / 54°F | 7° / 45°F | 105 mm | 3 | 15° / 59°F |
| March | 32 | 14° / 57°F | 9° / 48°F | 135 mm | 5 | 15° / 59°F |
| April | 52 | 18° / 64°F | 13° / 55°F | 165 mm | 6 | 18° / 64°F |
| May | 62 | 22° / 72°F | 16° / 61°F | 200 mm | 6 | 20° / 68°F |
| June | 62 | 25° / 77°F | 20° / 68°F | 384 mm | 6 | 24° / 75°F |
| July | 62 | 28° / 82°F | 24° / 75°F | 346 mm | 7 | 28° / 82°F |
| August | 62 | 29° / 84°F | 25° / 77°F | 212 mm | 8 | 31° / 88°F |
| September | 62 | 27° / 81°F | 23° / 73°F | 211 mm | 6 | 29° / 84°F |
| October | 68 | 23° / 73°F | 18° / 64°F | 117 mm | 5 | 26° / 79°F |
| November | 58 | 18° / 64°F | 14° / 57°F | 111 mm | 3 | 22° / 72°F |
| December | 30 | 13° / 55°F | 9° / 48°F | 97 mm | 2 | 17° / 63°F |
Sea temperature in Amakusa by month
The sea off Amakusa is warmest in August at around 31°C / 88°F, and coolest in January at 15°C / 59°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.
See Amakusa on the interactive sunshine globe →
Nearby places for sunshine
- Nagasaki Japan · 53 km · best in Oct · 1,779 h sun/yr
- Saga Japan · 75 km · best in Oct · 1,752 h sun/yr
- Kumamoto Japan · 76 km · best in Oct · 1,845 h sun/yr
- Kagoshima Japan · 92 km · best in Oct · 1,843 h sun/yr
- Fukuoka Japan · 126 km · best in Oct · 1,752 h sun/yr
- Miyazaki Japan · 139 km · best in Apr · 1,853 h sun/yr
Nearest destinations
- Goto Japan · 126 km · 1,677 h sun/yr · best in Oct
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