Monthly climate guide
Saitama weather in May
May in Saitama is typically warm, with average daytime highs around 24°C (74°F) and night-time lows near 12°C (53°F). The month usually brings about 119 mm of rain (wet) and is often cloudy. Daytime highs are 6°C warmer than April and 2°C cooler than June.
What stands out in May
- Just 80 km apart, but Saitama runs about 2°C warmer than Maebashi this month.
- In Saitama, May is late spring.
- Evenings cool off sharply: the daily range is around 12°C, so pack a layer.
Avg high
24°C
74°F
Avg low
12°C
53°F
Rainfall
119 mm
wet
Humidity
74%
relative
Sky
66%
cloud · often cloudy
Saitama weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 7°C / 44°F | -3°C / 27°F | 43 mm | 75% | 43% |
| February | 8°C / 46°F | -2°C / 28°F | 48 mm | 75% | 57% |
| March | 12°C / 54°F | 1°C / 33°F | 87 mm | 74% | 59% |
| April | 18°C / 64°F | 5°C / 42°F | 109 mm | 74% | 64% |
| May | 24°C / 74°F | 12°C / 53°F | 119 mm | 74% | 66% |
| June | 26°C / 78°F | 16°C / 61°F | 176 mm | 80% | 82% |
| July | 30°C / 86°F | 21°C / 69°F | 181 mm | 81% | 77% |
| August | 31°C / 88°F | 22°C / 71°F | 150 mm | 80% | 66% |
| September | 27°C / 80°F | 18°C / 64°F | 221 mm | 82% | 73% |
| October | 21°C / 70°F | 11°C / 52°F | 184 mm | 81% | 68% |
| November | 16°C / 60°F | 5°C / 41°F | 69 mm | 80% | 56% |
| December | 10°C / 49°F | 0°C / 31°F | 42 mm | 77% | 48% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Saitama?
Compare the months in the chart above to find your ideal window.
Best time to visit Saitama →Other Japan cities in May
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Saitama weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/saitama/may
<a href="https://weathercompare.eu/weather/japan/saitama/may">Saitama weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/saitama" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Saitama weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/saitama/may">Saitama weather in May</a> – WeatherCompare</p>
Saitama in May: quick answers
Is May a good time to visit Saitama?
Yes. May is one of the best months for Saitama, with highs around 24°C and about 119 mm of rain.
How warm is Saitama in May?
Average highs are about 24°C (74°F) and average lows about 12°C (53°F), based on 10 years of daily data.
Does it rain a lot in Saitama in May?
Saitama typically gets around 119 mm of rain in May — wet.
Figures are long-term averages for the area around Saitama (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.