Beihai climate
Beihai (Guangxi, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 24 °C75 °F, and about 1,770 mm70 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Beihai climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2068 | 1254 | 1661 | 461.8 |
| Feb | 2271 | 1559 | 1865 | 321.3 |
| Mar | 2476 | 1864 | 2170 | 572.2 |
| Apr | 2882 | 2271 | 2576 | 863.4 |
| May | 3086 | 2578 | 2882 | 1566.1 |
| Jun | 3187 | 2781 | 2984 | 26510 |
| Jul | 3187 | 2882 | 2984 | 33213 |
| Aug | 3087 | 2781 | 2984 | 36314 |
| Sep | 3086 | 2678 | 2882 | 2319.1 |
| Oct | 2883 | 2272 | 2577 | 1084.3 |
| Nov | 2577 | 1865 | 2271 | 602.4 |
| Dec | 2170 | 1356 | 1763 | 351.4 |
| Year | 3187 | 1254 | 2475 | 1,77070 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 77% | 70% | 2.7 | 10:57 |
| Feb | 79% | 74% | 2.9 | 11:25 |
| Mar | 80% | 76% | 3.3 | 11:58 |
| Apr | 79% | 72% | 4.1 | 12:37 |
| May | 80% | 72% | 5.1 | 13:09 |
| Jun | 84% | 82% | 4.9 | 13:26 |
| Jul | 84% | 77% | 5.1 | 13:19 |
| Aug | 84% | 76% | 4.9 | 12:52 |
| Sep | 82% | 67% | 4.7 | 12:14 |
| Oct | 79% | 51% | 4.3 | 11:37 |
| Nov | 78% | 57% | 3.6 | 11:05 |
| Dec | 74% | 63% | 2.9 | 10:50 |
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 Beihai is like
The warmest month is July, with an average high of 31 °C87 °F and a low of 28 °C82 °F. The coldest is January, when highs average 20 °C68 °F and lows 12 °C54 °F. There is a clear seasonal cycle, with 13 °C23.4 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,770 mm70 in of precipitation per year. The wettest three-month stretch is June–August, which brings 54% of the annual total. The wettest month is August (363 mm14 in), the driest is February (32 mm1.3 in).
Relative humidity ranges from 74% in December to 84% in August. The clearest skies (lowest average cloud amount, 51%) are typical of October. Average wind speed near the ground ranges from 13 km/h (8 mph) in August to 17 km/h (11 mph) in December. Daylight lasts from about 10.8 hours in December to 13.4 hours in June.
Best time to visit Beihai
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 20 °C68 °F to 25 °C77 °F with 32 mm1.3 in to 60 mm2.4 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 30 °C87 °F, very wet (363 mm14 in) and humid (84% relative humidity).
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 Beihai
- Wetter months (May–September) — highs 3086 to 31 °C87 °F, lows 2578 to 28 °C82 °F, about 269 mm11 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (October–April) — highs 2068 to 28 °C83 °F, lows 1254 to 22 °C72 °F, about 61 mm2.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Beihai compares
Compared with Qinzhou, about 73 km to the northwest, Beihai is on average 0.9 °C1.7 °F warmer and receives a similar amount of precipitation. The difference is largest in December (2 °C3.7 °F warmer).
Of the 547 places in China covered by World Climates, Beihai is the 11th warmest by annual mean temperature and the 34th 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: Hạ Long (Vietnam, Cwa), Haiphong (Vietnam, Cwa) and Cẩm Phả (Vietnam, Cwa).
The same NASA POWER grid cell also contains Hepu (pop. 192,813). Their long-term averages in this dataset are essentially the same as for Beihai, so they do not have separate pages.
Nearby places
- Qinzhou 73 km · 23 °C73 °F · 1,697 mm67 in
- Fangchenggang 85 km · 23 °C74 °F · 1,404 mm55 in
- Dongxing 119 km · 24 °C74 °F · 1,532 mm60 in
- Lianjiang 122 km · 23 °C74 °F · 1,754 mm69 in
- Zhanjiang 135 km · 24 °C75 °F · 1,855 mm73 in
- Yulin 166 km · 22 °C72 °F · 1,702 mm67 in
- Nanning 170 km · 22 °C72 °F · 1,388 mm55 in
- Beiliu 186 km · 23 °C73 °F · 1,724 mm68 in
Frequently asked questions
What is the warmest month in Beihai?
July is the warmest month in Beihai, with an average high of 31 °C (87 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Beihai?
January is the coldest month, with an average high of 20 °C (68 °F) and an average low of 12 °C (54 °F).
When does it rain the most in Beihai?
August is the wettest month with about 363 mm (14.3 in) of precipitation; February is the driest with about 32 mm (1.3 in).
What is the best time to visit Beihai?
Judging by long-term averages, the most comfortable months are November–March.
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.