Home › China › Gansu › Lanzhou

Lanzhou weather

Gansu · 4,359,446 inhabitants · Friday, October 30 · updated 02:33

Air: Very poor

2°

Mainly clear

Feels like 2°C

Wind

2 km/h

Gusts

4 km/h

Humidity

60 %

Pressure

1024 hPa

Clouds

22 %

Storm

Rise 07:25 Set 18:11 Day 10 h 46 min UV 4 · Moderate

Morning, afternoon, evening

Trend

Night

Mainly clear

6°2°

Feels like 6°

Wind ↑ S 2 km/h

Humidity 31 %

Morning

Mainly clear

10°0°

Feels like 10°

Wind ↑ S 3 km/h

Humidity 25 %

Afternoon

Mainly clear

15°13°

Feels like 15°

Wind ↑ NE 6 km/h

Humidity 30 %

Evening

Clear sky

10°9°

Feels like 10°

Wind ↑ ENE 4 km/h

Humidity 29 %

08:00

0°

S 3

11:00

10°

NNW 2

14:00

15°

NE 2

17:00

13°

NE 6

20:00

9°

ENE 4

23:00

10°

N 3

02:00

5°

E 2

05:00

8°

N 8

Lanzhou forecast in charts · next 7 days

The week ahead: highs and lows

▲ This week runs +3.5° warmer than usual

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Lanzhou climate: what a normal year looks like

Nights typically freeze from November to March, the coldest averaging −10 °C in January.

The hottest stretch is July, when afternoons average 28 °C; the coldest is January, when nights average −10 °C. Between those two months the average temperature changes by 27 °C.

A normal year brings roughly 470 mm of rain — less than 88% of the towns of 20,000+ people we compared it with.

The wet season is concentrated from July to September, which brings 54% of the annual total; August by itself averages 98 mm.

Forecast highs for the coming week average 12 °C, 3 °C cooler than a normal October (15 °C).

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall
Jan	1 °C	−10 °C	8 mm
Feb	6 °C	−6 °C	9 mm
Mar	11 °C	−1 °C	16 mm
Apr	18 °C	5 °C	26 mm
May	21 °C	9 °C	45 mm
Jun	26 °C	14 °C	57 mm
Jul	28 °C	17 °C	84 mm
Aug	26 °C	15 °C	99 mm
Sep	21 °C	11 °C	73 mm
Oct	15 °C	4 °C	41 mm
Nov	9 °C	−3 °C	10 mm
Dec	2 °C	−8 °C	4 mm
Whole year	15 °C	4 °C	470 mm

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 36.06° N, 103.84° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Lanzhou: pollution and pollen

5/6

Very poor

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.562µg/m³

PM1078µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Lanzhou

Rain observed over the last two hours by official weather radars around Lanzhou, followed by the radar forecast for the next hour where the weather service provides one.

Full-screen rain radar and next-hour rain on RainAtlas

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Lanzhou yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Lanzhou

Waning gibbous

79 % illuminated · 19.3 days

Rise 18:27 Set 08:58

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Wed 11/11 3%

Moonrise and moonset in local time (Asia/Shanghai); phase and lit fraction from a synodic calculation.

Look up a past day in Lanzhou

Curious about the weather in Lanzhou on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Lanzhou weather at a glance

This page gathers everything about the weather in Lanzhou, Gansu: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 2 °C (feels like 2 °C) and the wind blows at 2 km/h.

Expected range today: 0 °C to 15 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.

Other big cities nearby

Lanzhou weather data for developers

Use the Lanzhou forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

Create a free key

Where does this forecast come from? Our engine, checked every day against 1125 weather stations