Sasebo Climate by Month
Sasebo, Nagasaki, Japan
Hot summers and cool winters, with rain spread through the year.
Hot summers and cool winters, with rain spread through the year: that's Sasebo's climate in short. August is the warmest month, with highs around 87°F (31°C); January is the coolest at 49°F (9°C), and nights dip to 36°F (2°C). It gets 77 in (1954 mm) of rain a year, spread across the months.
- Warmest month
- 87°F(31°C)
- Average high, August
- Coldest nights
- 36°F(2°C)
- Average low, January
- Rain per year
- 77 in(1954 mm)
- No clear rainy season
- Humidity
- 70%
- Sunniest: May
Best and worst months in Sasebo
Best for weatherThe most comfortable weather comes in October, with highs around 73°F (23°C) and about 4.2 in (106 mm) of rain a month.
Least pleasantJuly is the least pleasant month: it's the wettest, with 13 in (333 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Sasebo weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 49°F(9°C) | 36°F(2°C) | 2.8 in(71 mm) | 65% | 2.1 |
| FebFebruary | 51°F(11°C) | 38°F(3°C) | 3.2 in(82 mm) | 61% | 2.8 |
| MarMarch | 57°F(14°C) | 43°F(6°C) | 4.9 in(125 mm) | 65% | 3.8 |
| AprApril | 65°F(19°C) | 51°F(10°C) | 6.3 in(161 mm) | 67% | 4.5 |
| MayMay | 73°F(23°C) | 59°F(15°C) | 6.6 in(168 mm) | 69% | 5.1 |
| JunJune | 78°F(25°C) | 66°F(19°C) | 13 in(329 mm) | 78% | 4.4 |
| JulJuly | 84°F(29°C) | 74°F(23°C) | 13 in(333 mm) | 82% | 4.7 |
| AugAugust | 87°F(31°C) | 75°F(24°C) | 8.0 in(202 mm) | 77% | 5.0 |
| SepSeptember | 81°F(27°C) | 69°F(21°C) | 7.9 in(200 mm) | 74% | 4.1 |
| OctOctoberBest | 73°F(23°C) | 59°F(15°C) | 4.2 in(106 mm) | 68% | 3.5 |
| NovNovember | 63°F(17°C) | 49°F(10°C) | 3.9 in(99 mm) | 71% | 2.6 |
| DecDecember | 53°F(12°C) | 40°F(4°C) | 3.1 in(78 mm) | 65% | 2.0 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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