UTC Offset
UTC+08:00
Siwei, China Snapshot 2026
Where is Siwei?
Siwei, China
- Continent
- Asia
- Country
- China
- City
- Siwei
- Population
- 17.2K
- Coordinates
- 38.02°, 114.15°
Siwei is a city in China with a population of approximately 17.2K. Average temperatures range from -6°C (22°F) in January to 32°C (90°F) in June. The best time to visit is April, May, June, September.
Time in Siwei right now
Open full time & time zone page 01:09 09
Wednesday, July 1, 2026
IANA time zone
Asia/Shanghai
Daylight saving
No DST
Next DST change
—
Live weather in Siwei
Daylight in Siwei today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 46m
Climate normals for Siwei
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Fair April best
Excellent May best
Excellent June best
Excellent July
Wet August
Fair September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 4°C / -6°C | 0°C / -10°C | 1days (4 mm) Excellent | 8.1h Good | 49% Moderate | 2.7 Moderate | Poor | View Details |
| February | 8°C / -4°C | 4°C / -8°C | 2days (10 mm) Excellent | 8.6h Good | 51% Moderate | 3.7 Moderate | Poor | View Details |
| March | 16°C / 2°C | 13°C / -1°C | 2days (10 mm) Excellent | 9.7h Good | 48% Moderate | 5 Moderate | Fair | View Details |
| April best | 22°C / 9°C | 20°C / 6°C | 4days (38 mm) Good | 9.9h Good | 46% Moderate | 6.2 High | Excellent | View Details |
| May best | 28°C / 15°C | 27°C / 13°C | 5days (38 mm) Good | 10.7h Excellent | 48% Moderate | 6.6 High | Excellent | View Details |
| June best | 32°C / 20°C | 33°C / 21°C | 6days (58 mm) Good | 11h Excellent | 52% Moderate | 7.2 Very High | Excellent | View Details |
| July | 31°C / 23°C | 35°C / 26°C | 14days (194 mm) Wet | 9.5h Good | 74% Muggy | 6.7 High | Wet | View Details |
| August | 29°C / 22°C | 34°C / 25°C | 14days (167 mm) Wet | 9.2h Good | 79% Humid | 6.1 High | Fair | View Details |
| September best | 26°C / 16°C | 28°C / 17°C | 5days (47 mm) Good | 9.1h Good | 71% Muggy | 5 Moderate | Excellent | View Details |
| October | 19°C / 9°C | 17°C / 7°C | 6days (59 mm) Good | 7.8h Good | 67% Muggy | 3.7 Moderate | Good | View Details |
| November | 12°C / 1°C | 9°C / -2°C | 2days (16 mm) Excellent | 7.8h Good | 60% Moderate | 3 Moderate | Fair | View Details |
| December | 5°C / -5°C | 1°C / -9°C | 1days (5 mm) Excellent | 7.9h Good | 49% Moderate | 2.5 Moderate | Poor | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: 4°C / -6°C . Feb: 8°C / -4°C . Mar: 16°C / 2°C . Apr: 22°C / 9°C . May: 28°C / 15°C . Jun: 32°C / 20°C . Jul: 31°C / 23°C . Aug: 29°C / 22°C . Sep: 26°C / 16°C . Oct: 19°C / 9°C . Nov: 12°C / 1°C . Dec: 5°C / -5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 4 mm. Feb: 10 mm. Mar: 10 mm. Apr: 38 mm. May: 38 mm. Jun: 58 mm. Jul: 194 mm. Aug: 167 mm. Sep: 47 mm. Oct: 59 mm. Nov: 16 mm. Dec: 5 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 49%. Feb: 51%. Mar: 48%. Apr: 46%. May: 48%. Jun: 52%. Jul: 74%. Aug: 79%. Sep: 71%. Oct: 67%. Nov: 60%. Dec: 49%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 11 km/h . Feb: 12 km/h . Mar: 14 km/h . Apr: 16 km/h . May: 16 km/h . Jun: 13 km/h . Jul: 12 km/h . Aug: 10 km/h . Sep: 11 km/h . Oct: 11 km/h . Nov: 12 km/h . Dec: 12 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 3.
Frequently Asked Questions
Siwei has a population of approximately 17.2K.
The best months to visit Siwei are April, May, June, September, when temperatures are pleasant and rainfall is lower.
Siwei receives approximately 646mm of rainfall annually across 62 rainy days.
Siwei is located in China, in the Asia region.