Today, 12 September, Saturday, in Lanzhou (China): cloudy, light rain in places, moderately warm. During the day the air will warm up to +21°, at night around +12°. Wind up to 11 km/h. High chance of rain — be sure to take an umbrella or a raincoat. A T-shirt is comfortable during the day, but take a light sweater or windbreaker for the evening. The sun will rise at 06:44 and set at 19:16 — daylight lasts 13 hours.
Hourly weather in Lanzhou
53%15
72%16
82%17
76%18
61%19
49%20
45%21
44%22
41%23
34%00
25%01
20%02
20%03
23%04
27%05
31%06
36%07
39%08
41%09
42%10
41%11
38%12
34%13
31%14
💧 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 Lanzhou 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
🌦️
💧 82%
+12°+21°
Morning
🌦️
+15°
Day
🌦️
+21°
Evening
🌇
+19°
Night
🌙
+12°
Drizzle · precipitation 82% · wind up to 11 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tomorrow 13.9
🌦️
💧 43%
+14°+22°
Morning
☁️
+14°
Day
🌦️
+22°
Evening
🌇
+20°
Night
🌙
+14°
Drizzle · precipitation 43% · wind up to 10 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 14.9
🌦️
💧 55%
+12°+22°
Morning
🌦️
+16°
Day
🌦️
+22°
Evening
🌇
+20°
Night
🌙
+12°
Drizzle · precipitation 55% · wind up to 9 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 15.9
🌦️
💧 63%
+12°+23°
Morning
🌦️
+16°
Day
🌦️
+23°
Evening
🌇
+20°
Night
🌙
+12°
Rain showers · precipitation 63% · wind up to 11 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 16.9
🌦️
💧 61%
+15°+23°
Morning
🌦️
+18°
Day
🌦️
+23°
Evening
🌇
+21°
Night
🌙
+15°
Rain showers · precipitation 61% · wind up to 3 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 17.9
☁️
💧 2%
+13°+26°
Morning
☁️
+18°
Day
☁️
+26°
Evening
🌇
+23°
Night
🌙
+13°
Overcast · precipitation 2% · wind up to 13 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Fri 18.9
🌦️
💧 13%
+15°+21°
Morning
🌦️
+17°
Day
🌦️
+21°
Evening
🌇
+20°
Night
🌙
+15°
Drizzle · precipitation 13% · wind up to 16 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sat 19.9
🌦️
💧 67%
+15°+22°
Morning
🌦️
+18°
Day
🌦️
+22°
Evening
🌇
+20°
Night
🌙
+15°
Drizzle · precipitation 67% · wind up to 8 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sun 20.9
🌦️
💧 62%
+13°+16°
Morning
🌦️
+14°
Day
🌦️
+16°
Evening
🌇
+15°
Night
🌙
+13°
Drizzle · precipitation 62% · wind up to 9 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 21.9
☁️
💧 11%
+11°+22°
Morning
☁️
+15°
Day
☁️
+22°
Evening
🌇
+19°
Night
🌙
+11°
Overcast · precipitation 11% · wind up to 2 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 22.9
🌤️
💧 8%
+11°+23°
Morning
🌤️
+15°
Day
🌤️
+23°
Evening
🌇
+20°
Night
🌙
+11°
Mostly clear · precipitation 8% · wind up to 3 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 23.9
☁️
💧 21%
+12°+23°
Morning
☁️
+16°
Day
☁️
+23°
Evening
🌇
+20°
Night
🌙
+12°
Overcast · precipitation 21% · wind up to 18 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 24.9
☁️
💧 22%
+14°+22°
Morning
☁️
+17°
Day
☁️
+22°
Evening
🌇
+20°
Night
🌙
+14°
Overcast · precipitation 22% · wind up to 16 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Fri 25.9
☁️
💧 25%
+14°+21°
Morning
☁️
+17°
Day
☁️
+21°
Evening
🌇
+19°
Night
🌙
+14°
Overcast · precipitation 25% · wind up to 17 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
🗺️ 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
12 / 100
comfort for running · Bad
🧴 UV
9%
moderate · low
☂️ Rain
82%
likely · high
✨ Stars
31 / 100
evening visibility · So-so
🧺 Laundry drying
3 / 100
will dry outside · Bad
🚗 Car wash
0 / 100
better to wait · Bad
🌫️ Air quality
63
Poor air
European AQI
PM2.5: 21PM10: 132O₃: 123NO₂: 2
People with allergies or asthma should reduce time outdoors.
🌅 Sun, moon and sea
Sunrise
06:44
Sunset
19:16
Golden hour
18:42
Daylight
13 h (-2 min vs yesterday)
Lanzhou 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.
+2°
-8°
Jan
+6°
-5°
Feb
+13°
+0°
Mar
+19°
+6°
Apr
+24°
+11°
May
+28°
+15°
Jun
+29°
+18°
Jul
+28°
+17°
Aug
+22°
+12°
Sep
+16°
+6°
Oct
+10°
-1°
Nov
+3°
-6°
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
+2°
-8°
4 mm
Proper winter: +2° daytime, frost and short days. ❄️ a warm jacket, a hat, non-slip shoes. This is the coldest month of the year.
February
+6°
-5°
6 mm
A cold month: +6° by day, long walks get uncomfortable. 🧣 a warmer jacket.
March
+13°
+0°
13 mm
Cool: around +13° by day, you'll need a warm layer. 🧥 a warm jacket.
April
+19°
+6°
23 mm
Ideal weather: +19° daytime — neither hot nor cold. 🙂 a sweater for the evening. Weather-wise, one of the three best months to visit.
May
+24°
+11°
43 mm
The most pleasant season: +24° by day, comfortable all day long. 🙂 a sweater for the evening. Weather-wise, one of the three best months to visit.
June
+28°
+15°
55 mm
Warm and comfortable: +28° by day, +15° at night. 😊 light summer clothing. The longest daylight hours of the year — more time for everything.
July
+29°
+18°
85 mm
Gentle warmth — about +29° daytime, great walking weather. Frequent rain (85 mm over the month) — keep indoor backup plans. 😊 light summer clothing. This is the hottest month of the year in Lanzhou.
August
+28°
+17°
95 mm
A comfortable month: +28° by day without exhausting heat. One of the wettest months (95 mm): downpours can derail plans. 😊 light summer clothing. Statistically the wettest month of the year.
September
+22°
+12°
69 mm
One of the best times to visit: +22° by day, fresh nights. It's a rainy month (69 mm) — an umbrella is a must. 🙂 a sweater for the evening.
October
+16°
+6°
39 mm
A fresh month — +16° daytime, take a jacket for walks. 🙂 a sweater for the evening.
November
+10°
-1°
7 mm
A cold month: +10° by day, long walks get uncomfortable. 🧥 a warm jacket.
December
+3°
-6°
2 mm
Cold: +3° by day, down to -6° at night — dress warmly. ❄️ a warm jacket, a hat, non-slip shoes. One of the driest months — rain is very unlikely.
When to visit Lanzhou
✅ Recommended time to visit
🌟 Best time: April, May, June
Daytime air+19…+28°
Precipitationoften
Why: comfortable +19…+28° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: January, March, July, August, September, October
Daytime air+2…+29°
Precipitationoften
Why: cool (+2…+29°) — not beach season, but great for city sights and museums.
🔴 Not the best time
❄️ Cold season: February, November, December
Daytime air+3…+10°
Precipitationalmost none
Why: cold and dark (+3…+10° by day, 10 h of daylight) — only if frost and short days don’t put you off.
Bottom line: the best time to visit Lanzhou is April – June, and the most comfortable months are April, May, June. The toughest months to visit are February, November, December: cold and short days.
🌡️ Today vs the climate normal
Today's high
+21°
Normal for September
+22°
Deviation
1° colder than normal
A year ago on this day
+29°
Record for this date
+32° (1963)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Lanzhou
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.