Monthly climate guide
Hamamatsu weather in June
Expect warm weather in Hamamatsu in June: afternoons reach about 23°C (74°F), while nights drop to around 21°C (70°F). Around 259 mm of rain falls over the month (very wet), and skies are often cloudy. Daytime highs are 3°C warmer than May and 3°C cooler than July.
What stands out in June
- Rain is above Hamamatsu's usual level, by about 50%.
- Seasonally, June counts as early summer in Hamamatsu.
- Just 90 km apart, but Hamamatsu runs about 2°C cooler than Nagoya this month.
- There's little difference between day and night (around 2°C).
Avg high
23°C
74°F
Avg low
21°C
70°F
Rainfall
259 mm
very wet
Humidity
85%
relative
Sky
78%
cloud · often cloudy
Hamamatsu weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 11°C / 51°F | 7°C / 45°F | 64 mm | 74% | 56% |
| February | 11°C / 52°F | 7°C / 45°F | 89 mm | 73% | 61% |
| March | 14°C / 57°F | 10°C / 49°F | 128 mm | 73% | 56% |
| April | 17°C / 63°F | 13°C / 56°F | 207 mm | 76% | 60% |
| May | 21°C / 69°F | 18°C / 64°F | 179 mm | 80% | 62% |
| June | 23°C / 74°F | 21°C / 70°F | 259 mm | 85% | 78% |
| July | 27°C / 80°F | 25°C / 77°F | 279 mm | 88% | 70% |
| August | 28°C / 83°F | 27°C / 80°F | 163 mm | 85% | 55% |
| September | 26°C / 80°F | 24°C / 76°F | 281 mm | 79% | 66% |
| October | 23°C / 73°F | 20°C / 68°F | 247 mm | 75% | 62% |
| November | 18°C / 65°F | 15°C / 59°F | 104 mm | 72% | 57% |
| December | 13°C / 56°F | 10°C / 50°F | 78 mm | 74% | 58% |
What to pack for June
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is June a good time to visit Hamamatsu?
Compare the months in the chart above to find your ideal window.
Best time to visit Hamamatsu →Other Japan cities in June
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Hamamatsu weather in June. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/hamamatsu/june
<a href="https://weathercompare.eu/weather/japan/hamamatsu/june">Hamamatsu weather in June</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/hamamatsu" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Hamamatsu weather in June"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/hamamatsu/june">Hamamatsu weather in June</a> – WeatherCompare</p>
Hamamatsu in June: quick answers
Is June a good time to visit Hamamatsu?
June is one of the wetter months in Hamamatsu, with about 259 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Hamamatsu in June?
Average highs are about 23°C (74°F) and average lows about 21°C (70°F), based on 10 years of daily data.
Does it rain a lot in Hamamatsu in June?
Hamamatsu typically gets around 259 mm of rain in June — very wet.
Figures are long-term averages for the area around Hamamatsu (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.