Tsukuba Climate by Month
Tsukuba, Ibaraki, Japan
Hot summers and cold winters, with rain spread through the year.
Tsukuba has hot summers and cold winters, with rain spread through the year. August is the warmest month, with highs around 87°F (30°C); January is the coolest at 49°F (9°C), and nights dip to 29°F (-1°C). It gets 54 in (1359 mm) of rain a year, spread across the months.
- Warmest month
- 87°F(30°C)
- Average high, August
- Coldest nights
- 29°F(-1°C)
- Average low, January
- Rain per year
- 54 in(1359 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: May
Best and worst months in Tsukuba
Best for weatherMay and June are the best time for weather in Tsukuba: highs near 75°F (24°C) and about 5.3 in (136 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 49°F (9°C).
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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Tsukuba weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 49°F(9°C) | 29°F(-1°C) | 1.7 in(42 mm) | 62% | 2.7 |
| FebFebruary | 50°F(10°C) | 31°F(0°C) | 2.1 in(54 mm) | 58% | 3.2 |
| MarMarch | 56°F(13°C) | 38°F(3°C) | 3.5 in(88 mm) | 55% | 3.8 |
| AprApril | 65°F(18°C) | 47°F(8°C) | 4.1 in(105 mm) | 65% | 4.6 |
| MayMayBest | 73°F(23°C) | 56°F(13°C) | 4.9 in(124 mm) | 68% | 5.0 |
| JunJuneBest | 77°F(25°C) | 64°F(18°C) | 5.8 in(147 mm) | 79% | 4.4 |
| JulJuly | 83°F(29°C) | 71°F(22°C) | 6.0 in(152 mm) | 82% | 4.5 |
| AugAugust | 87°F(30°C) | 73°F(23°C) | 5.1 in(129 mm) | 78% | 4.7 |
| SepSeptember | 80°F(27°C) | 67°F(19°C) | 6.9 in(175 mm) | 79% | 3.6 |
| OctOctober | 70°F(21°C) | 56°F(13°C) | 8.2 in(208 mm) | 76% | 2.9 |
| NovNovember | 62°F(16°C) | 44°F(7°C) | 3.1 in(78 mm) | 67% | 2.4 |
| DecDecember | 53°F(11°C) | 33°F(1°C) | 2.2 in(57 mm) | 64% | 2.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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