Location & Surroundings
Heyan is a settlement in Sichuan, China, at 285 m elevation. The nearest larger town is Xinsheng, 7 km to the southeast. The national capital Beijing is about 1470 km to the northeast. The nearest airport is Dazu, 42 km away.
Also known as: 河堰
Basic Data
- Type populated place (PPL)
- a city, town, village, or other agglomeration of buildings where people live and work
Geography
-
Coordinates
30° 0' 19" N, 105° 42' 29" E
- Elevation DEM: 285 m
- Timezone Asia/Shanghai
- Time Shift GMT 8 (DST 8)
Statistics & Country
- Pop. Density 38 p/km²
- Built-up 0.0%
- Settlement Very low density rural
- Currency Yuan Renminbi (CNY)
- Phone Prefix +86
Sun & Local Time
- Local time 06:47
- Sunrise 06:40
- Sunset 19:03
- Day length 12 h 22 min
Other populated places nearby
Alternate Names
zh
河堰
Weather in Heyan
Current conditions and a 3-day (72-hour) weather forecast for Heyan, updated from the NOAA GFS model.
Now 19.9 C with overcast skies and a 0.8 m/s north-easterly wind. Next 24h: 19.7 to 21.3 C, max wind 0.8 m/s. Precip around 0.1 mm. Solar peaks near 105 W/m2.
Temperature
19.9 C
Wind
0.8 m/s NE (62 deg)
Humidity
93 %
Pressure
1,012.9 hPa
Clouds
84 %
Precip
0.05 mm
Solar
0.0 W/m2
UV-B
n/a
| Hour | Temp (C) | Wind (m/s) | Dir (deg) | RH (%) | Pressure (hPa) | Precip (step/total mm) | Clouds (%) | Solar (W/m2) | UV-B (W/m2) |
|---|---|---|---|---|---|---|---|---|---|
| NOW | 19.9 | 0.8 | 62 | 93 | 1,012.9 | - / 0.00 | 84 | 0.0 | n/a |
| 6h | 19.7 | 0.0 | 108 | 95 | 1,013.2 | 0.05 / 0.05 | 88 | 0.0 | n/a |
| 12h | 19.8 | 0.3 | 225 | 96 | 1,013.3 | 0.98 / 1.03 | 100 | 0.9 | n/a |
| 18h | 21.3 | 0.2 | 291 | 88 | 1,013.0 | 0.00 / 0.39 | 99 | 59.7 | n/a |
| Tomorrow | 21.2 | 0.5 | 62 | 89 | 1,012.3 | 0.00 / 0.05 | 98 | 105.3 | n/a |
| 30h | 20.7 | 0.8 | 84 | 91 | 1,013.2 | 0.00 / 0.00 | 100 | 0.0 | n/a |
| 36h | 21.0 | 0.7 | 101 | 92 | 1,013.9 | 0.23 / 0.23 | 100 | 6.8 | n/a |
| 42h | 21.5 | 1.7 | 74 | 90 | 1,014.2 | 0.65 / 0.88 | 98 | 45.9 | n/a |
| Friday | 20.8 | 1.5 | 50 | 92 | 1,014.8 | 0.00 / 0.06 | 100 | 112.7 | n/a |
| 54h | 20.2 | 1.1 | 353 | 97 | 1,015.3 | 4.75 / 4.81 | 100 | 0.0 | n/a |
| 60h | 20.4 | 0.8 | 339 | 96 | 1,016.6 | 0.00 / 2.31 | 100 | 0.7 | n/a |
| 66h | 22.9 | 1.5 | 312 | 85 | 1,015.5 | 0.00 / 1.13 | 100 | 168.1 | n/a |
| Saturday | 21.5 | 2.1 | 335 | 94 | 1,015.7 | 0.00 / 0.40 | 100 | 51.4 | n/a |
Source: NOAA GFS 0.25° (run 2026-09-16 12:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Heyan?
Now 19.9 C with overcast skies and a 0.8 m/s north-easterly wind. Next 24h: 19.7 to 21.3 C, max wind 0.8 m/s. Precip around 0.1 mm. Solar peaks near 105 W/m2.
Is precipitation expected in the next 24 hours?
Around 0.1 mm of precipitation is expected in the next 24 hours.
When are sunrise and sunset in Heyan today?
Sunrise around 06:41 and sunset around 19:02 (local time). Day length about 12h 21m.
What is the local time in Heyan?
Local time is 06:47. Time zone: Asia/Shanghai (UTC+08:00).
What type of place is Heyan?
Heyan is a populated place.
What is the elevation of Heyan?
DEM 285 m.
Where is Heyan located?
It is at 30.00540, 105.70800 (latitude, longitude).
Which country is Heyan in?
It is in China.