10-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
10°
Feels like 10°
Wind↑ WSW 4 km/h
Humidity 72 %
Evening
Clear sky
14°
Feels like 14°
Wind↑ ESE 8 km/h
Humidity 36 %
11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
10°
Feels like 8°
Wind↑ E 11 km/h
Humidity 80 %
Evening
Partly cloudy
14°
Feels like 14°
Wind↑ ESE 13 km/h
Gusts22 km/h
Humidity 69 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
10°
Feels like 10°
Wind↑ ESE 10 km/h
Humidity 80 %
Evening
Mainly clear
14°
Feels like 14°
Wind↑ ESE 10 km/h
Humidity 63 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
12°
Feels like 12°
Wind↑ SSW 4 km/h
Humidity 74 %
Evening
Mainly clear
16°
Feels like 16°
Wind↑ ESE 16 km/h
Gusts34 km/h
Humidity 62 %
Sanmenxia forecast in charts · next 7 days
The week ahead: highs and lows
▲ This week runs +3.4° warmer than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Sanmenxia climate: what a normal year looks like
The hottest stretch is July, when afternoons average 30 °C; the coldest is January, when nights average −5 °C. Between those two months the average temperature changes by 27 °C.
Nights typically freeze from December to February, the coldest averaging −5 °C in January.
The wet season is concentrated from July to September, which brings 51% of the annual total; July by itself averages 127 mm.
A normal year brings roughly 670 mm of rain — less than 77% of the towns of 20,000+ people we compared it with.
Forecast highs for the coming week average 16 °C, 2 °C cooler than a normal October (18 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
3 °C
−5 °C
12 mm
Feb
7 °C
−2 °C
18 mm
Mar
13 °C
3 °C
26 mm
Apr
20 °C
10 °C
43 mm
May
25 °C
15 °C
55 mm
Jun
29 °C
19 °C
76 mm
Jul
30 °C
22 °C
127 mm
Aug
29 °C
21 °C
113 mm
Sep
24 °C
16 °C
103 mm
Oct
18 °C
10 °C
58 mm
Nov
11 °C
3 °C
32 mm
Dec
4 °C
−3 °C
11 mm
Whole year
18 °C
9 °C
670 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 34.78° N, 111.19° 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 Sanmenxia: pollution and pollen
5/6
Very poor
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.554µg/m³
PM1059µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Sanmenxia
Rain observed over the last two hours by official weather radars around Sanmenxia, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Sanmenxia yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Sanmenxia
Waning gibbous
79 % illuminated · 19.3 days
Rise 18:01 Set 08:24
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Wed11/113%
Moonrise and moonset in local time (Asia/Shanghai); phase and lit fraction from a synodic calculation.
Look up a past day in Sanmenxia
Curious about the weather in Sanmenxia on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Sanmenxia weather at a glance
This page gathers everything about the weather in Sanmenxia, Henan: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “clear sky”, it is 8 °C (feels like 7 °C) and the wind blows at 7 km/h.
Expected range today: 8 °C to 21 °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.
Use the Sanmenxia 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.
