Tongzhou climate
Tongzhou (Beijing, China) has a monsoon-influenced hot-summer humid continental climate (Köppen Dwa). The average temperature over the year is 12 °C54 °F, and about 553 mm22 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Tongzhou climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 133 | −1013 | −523 | 20.1 | 31 |
| Feb | 440 | −719 | −130 | 60.2 | 28 |
| Mar | 1355 | −228 | 542 | 90.4 | 22 |
| Apr | 2271 | 542 | 1456 | 240.9 | 2 |
| May | 2985 | 1355 | 2170 | 391.5 | 0 |
| Jun | 3290 | 1865 | 2578 | 873.4 | 0 |
| Jul | 3392 | 2271 | 2781 | 1556.1 | 0 |
| Aug | 3188 | 2069 | 2678 | 1214.7 | 0 |
| Sep | 2780 | 1457 | 2169 | 642.5 | 0 |
| Oct | 1966 | 643 | 1254 | 291.2 | 2 |
| Nov | 948 | −228 | 338 | 140.5 | 21 |
| Dec | 235 | −916 | −326 | 20.1 | 31 |
| Year | 3392 | −1013 | 1254 | 55322 | 138 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 53% | 45% | 2.3 | 9:38 |
| Feb | 52% | 49% | 3.0 | 10:38 |
| Mar | 46% | 44% | 4.4 | 11:50 |
| Apr | 42% | 52% | 5.3 | 13:13 |
| May | 41% | 56% | 5.9 | 14:22 |
| Jun | 53% | 66% | 5.2 | 14:59 |
| Jul | 65% | 68% | 4.7 | 14:44 |
| Aug | 68% | 63% | 4.6 | 13:44 |
| Sep | 62% | 54% | 4.1 | 12:24 |
| Oct | 58% | 44% | 3.2 | 11:04 |
| Nov | 57% | 41% | 2.4 | 9:55 |
| Dec | 55% | 40% | 2.1 | 9:21 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Tongzhou is like
The warmest month is July, with an average high of 33 °C92 °F and a low of 22 °C71 °F. The coldest is January, when highs average 1 °C33 °F and lows −10 °C13 °F. The climate is extremely continental — the average temperature swings by 32.1 °C57.8 °F between the coldest and the warmest month.
Annual precipitation is moderate at about 553 mm22 in. The wettest three-month stretch is June–August, which brings 66% of the annual total. Months with less than 20 mm0.8 in on average: November–March. The wettest month is July (155 mm6.1 in), the driest is January (2 mm0.1 in).
Relative humidity ranges from 41% in May to 68% in August. The clearest skies (lowest average cloud amount, 40%) are typical of December. Average wind speed near the ground ranges from 5 km/h (3 mph) in August to 10 km/h (6 mph) in April. Daylight lasts from about 9.4 hours in December to 15.0 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 12 cm).
Best time to visit Tongzhou
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and September and October: average highs of 19 °C66 °F to 29 °C85 °F with 24 mm0.9 in to 64 mm2.5 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 1 °C33 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Tongzhou
- Winter (December–February) — highs 133 to 4 °C40 °F, lows −1013 to −7 °C19 °F, about 3 mm0.1 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1355 to 29 °C85 °F, lows −228 to 13 °C55 °F, about 24 mm1.0 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3188 to 33 °C92 °F, lows 1865 to 22 °C71 °F, about 121 mm4.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 948 to 27 °C80 °F, lows −228 to 14 °C57 °F, about 36 mm1.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How Tongzhou compares
Compared with Beijing, about 23 km to the west, Tongzhou is on average 0.6 °C1 °F cooler and receives a similar amount of precipitation. The difference is largest in March (0.9 °C1.6 °F cooler).
Of the 547 places in China covered by World Climates, Tongzhou is the 395th warmest by annual mean temperature and the 437th wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern: Nampo (North Korea, Dwa), Hamhŭng (North Korea, Dwa) and Mangyongdae-ri (North Korea, Dwa).
Nearby places
- Beijing 23 km · 13 °C55 °F · 533 mm21 in
- Shunyi 24 km · 12 °C54 °F · 553 mm22 in
- Daxing 34 km · 13 °C55 °F · 514 mm20 in
- Sanhe 36 km · 12 °C54 °F · 553 mm22 in
- Langfang 43 km · 12 °C54 °F · 530 mm21 in
- Tianjin 96 km · 13 °C55 °F · 533 mm21 in
- Tanggu 130 km · 13 °C55 °F · 547 mm22 in
- Tangshan 133 km · 12 °C53 °F · 577 mm23 in
Frequently asked questions
What is the warmest month in Tongzhou?
July is the warmest month in Tongzhou, with an average high of 33 °C (92 °F) and an average low of 22 °C (71 °F).
What is the coldest month in Tongzhou?
January is the coldest month, with an average high of 1 °C (33 °F) and an average low of -10 °C (13 °F).
When does it rain the most in Tongzhou?
July is the wettest month with about 155 mm (6.1 in) of precipitation; January is the driest with about 2 mm (0.1 in).
What is the best time to visit Tongzhou?
Judging by long-term averages, the most comfortable months are April and May and September and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.