Weather in Saitama — today
Now in Saitama
⛅
+25°
Partly cloudy
Feels like +28° · humidity 74%
Today 12.9: +25° / +20°
🕐 15:25
Wind
5 km/h
UV index
1
Air (AQI)
48 · Moderate
Precipitation
60%
Humidity
74%
Pressure
1021 hPa
Sunrise / sunset
05:21 / 17:53
👕 What to wear today
Warm — a T-shirt and light trousers or shorts.
☂️ Take an umbrellaFeels warmer by 3°
Weather for an activity:
Detailed weather information for Saitama
Today, 12 September, Saturday, in Saitama (Japan): overcast, raining, warm. During the day the air will warm up to +25°, at night around +20°. Due to high humidity it feels like +28°. Wind up to 6 km/h. High chance of rain — be sure to take an umbrella or a raincoat. Light summer clothing will do — a T-shirt and shorts or light trousers. The sun will rise at 05:21 and set at 17:53 — daylight lasts 13 hours.Hourly weather in Saitama
💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).
Weather in Saitama for 14 days
Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).
▶
Today 12.9
🌧️
💧 60%
+20° +25°
Morning
🌧️
+22°
Day
🌧️
+25°
Evening
🌇
+24°
Night
🌙
+20°
▶
Tomorrow 13.9
🌦️
💧 24%
+21° +26°
Morning
☁️
+22°
Day
🌦️
+26°
Evening
🌇
+25°
Night
🌙
+21°
▶
Mon 14.9
🌤️
💧 14%
+22° +32°
Morning
🌤️
+26°
Day
🌤️
+32°
Evening
🌇
+30°
Night
🌙
+22°
▶
Tue 15.9
🌦️
💧 92%
+22° +29°
Morning
🌦️
+25°
Day
🌦️
+29°
Evening
🌇
+27°
Night
🌙
+22°
▶
Wed 16.9
🌦️
💧 86%
+21° +26°
Morning
🌦️
+23°
Day
🌦️
+26°
Evening
🌇
+25°
Night
🌙
+21°
▶
Thu 17.9
🌦️
💧 73%
+20° +25°
Morning
🌦️
+22°
Day
🌦️
+25°
Evening
🌇
+24°
Night
🌙
+20°
▶
Fri 18.9
🌦️
💧 44%
+19° +23°
Morning
🌦️
+20°
Day
🌦️
+23°
Evening
🌇
+22°
Night
🌙
+19°
▶
Sat 19.9
🌦️
💧 53%
+21° +28°
Morning
🌦️
+24°
Day
🌦️
+28°
Evening
🌇
+26°
Night
🌙
+21°
▶
Sun 20.9
☁️
💧 51%
+22° +29°
Morning
☁️
+25°
Day
☁️
+29°
Evening
🌇
+27°
Night
🌙
+22°
▶
Mon 21.9
☁️
💧 55%
+23° +30°
Morning
☁️
+26°
Day
☁️
+30°
Evening
🌇
+28°
Night
🌙
+23°
▶
Tue 22.9
🌦️
💧 49%
+22° +28°
Morning
🌦️
+24°
Day
🌦️
+28°
Evening
🌇
+27°
Night
🌙
+22°
▶
Wed 23.9
🌦️
💧 47%
+20° +24°
Morning
🌦️
+21°
Day
🌦️
+24°
Evening
🌇
+23°
Night
🌙
+20°
▶
Thu 24.9
🌦️
💧 53%
+19° +21°
Morning
🌦️
+20°
Day
🌦️
+21°
Evening
🌇
+21°
Night
🌙
+19°
▶
Fri 25.9
🌦️
💧 37%
+19° +25°
Morning
🌦️
+21°
Day
🌦️
+25°
Evening
🌇
+24°
Night
🌙
+19°
🗺️ Precipitation radar
Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.
Rain intensity:lightmoderateheavy
🎯 What to do in this weather — indices of the day
Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.
🏃 Running
10 / 100
comfort for running · Bad
🧴 UV
9%
moderate · low
☂️ Rain
60%
likely · high
✨ Stars
46 / 100
evening visibility · Average
🧺 Laundry drying
6 / 100
will dry outside · Bad
🚗 Car wash
23 / 100
better to wait · So-so
🌫️ Air quality
48
Moderate air
European AQI
PM2.5: 9PM10: 11O₃: 108NO₂: 3
Moderate. Those sensitive to dust should be more careful during long outdoor exercise.
🌅 Sun, moon and sea
Sunrise
05:21
Sunset
17:53
Golden hour
17:19
Daylight
13 h (-2 min vs yesterday)
Saitama climate by month
Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.
+8°
-2°
Jan
+9°
-1°
Feb
+13°
+3°
Mar
+18°
+8°
Apr
+23°
+13°
May
+25°
+18°
Jun
+29°
+22°
Jul
+30°
+23°
Aug
+26°
+20°
Sep
+21°
+14°
Oct
+16°
+7°
Nov
+11°
+1°
Dec
swipe sideways →
Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit
| Month | Day | Night | Precipitation | What to pack and what makes the month notable (events, nuances) |
|---|---|---|---|---|
| January | +8° | -2° | 58 mm | A cold month: +8° by day, long walks get uncomfortable. 🧥 a warm jacket. This is the coldest month of the year. |
| February | +9° | -1° | 55 mm | Cold: +9° by day, down to -1° at night — dress warmly. 🧥 a warm jacket. |
| March | +13° | +3° | 102 mm | A fresh month — +13° daytime, take a jacket for walks. Frequent rain (102 mm over the month) — keep indoor backup plans. 🧥 a warm jacket. |
| April | +18° | +8° | 106 mm | Cool weather: +18° by day, noticeably colder in the evening. One of the wettest months (106 mm): downpours can derail plans. 🙂 a sweater for the evening. |
| May | +23° | +13° | 130 mm | One of the best times to visit: +23° by day, fresh nights. It's a rainy month (130 mm) — an umbrella is a must. 🙂 a sweater for the evening. Weather-wise, one of the three best months to visit. |
| June | +25° | +18° | 157 mm | Ideal weather: +25° daytime — neither hot nor cold. Frequent rain (157 mm over the month) — keep indoor backup plans. 😊 light summer clothing. The longest daylight hours of the year — more time for everything. |
| July | +29° | +22° | 160 mm | A comfortable month: +29° by day without exhausting heat. One of the wettest months (160 mm): downpours can derail plans. 😊 light summer clothing. |
| August | +30° | +23° | 121 mm | Warm and comfortable: +30° by day, +23° at night. It's a rainy month (121 mm) — an umbrella is a must. 😊 light summer clothing. This is the hottest month of the year in Saitama. |
| September | +26° | +20° | 178 mm | Gentle warmth — about +26° daytime, great walking weather. Frequent rain (178 mm over the month) — keep indoor backup plans. 😊 light summer clothing. |
| October | +21° | +14° | 196 mm | The most pleasant season: +21° by day, comfortable all day long. One of the wettest months (196 mm): downpours can derail plans. 🙂 a sweater for the evening. Statistically the wettest month of the year. |
| November | +16° | +7° | 81 mm | Cool: around +16° by day, you'll need a warm layer. It's a rainy month (81 mm) — an umbrella is a must. 🧥 a warm jacket. |
| December | +11° | +1° | 53 mm | A fresh month — +11° daytime, take a jacket for walks. 🧥 a warm jacket. The shortest daylight of the year — it gets dark early. |
When to visit Saitama
✅ Recommended time to visit
🌟 Best time: May, June, August
Daytime air+23…+30°
Precipitationoften
Why: comfortable +23…+30° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: January, February, April, July, September, November
Daytime air+8…+29°
Precipitationoften
Why: noticeable rain risk (55–178 mm/month) — pack an umbrella and backup plans.
🔴 Not the best time
❄️ Cold season: March, October, December
Daytime air+11…+21°
Precipitationoften
Why: cold and dark (+11…+21° by day, 10 h of daylight) — only if frost and short days don’t put you off.
Bottom line: the best time to visit Saitama is May, June, August, and the most comfortable months are May, June, August. The toughest months to visit are March, October, December: frequent rain.
🌡️ Today vs the climate normal
Today's high
+25°
Normal for September
+26°
Deviation
1° colder than normal
A year ago on this day
+28°
Record for this date
+34° (2010)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Saitama
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.
Show the archive for the selected day →
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Weather in cities near Saitama
Frequently asked questions about the weather in Saitama
What is the weather in Saitama right now?＋
Partly cloudy, +25°, feels like +28°.
Will it rain in Saitama today?＋
Yes: 60% chance, 10 mm.
When is the best time to visit Saitama?＋
Best time to visit — May, June, August.
What time are sunrise and sunset in Saitama?＋
Sunrise 05:21, sunset 17:53.
Does it snow in Saitama in winter?＋
Yes, snow is possible in January, February.
What is the climate in Saitama by month?＋
Summers up to +30° in August, winters around -2° in January; the wettest month is October.
How hot is it in Saitama in summer?＋
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.