Jiazi climate

Guangdong, China · 22.88°N, 116.07°E · elevation 7 m · population 130,298

Warmest month
July
high 30 °C87 °F
Coldest month
January
low 12 °C54 °F
Wettest month
June
295 mm12 in
Best time to visit
October–March
by our comfort score
Annual precipitation
1,502 mm59 in
February driest
Year average
23 °C73 °F
humid subtropical (Cfa)

Jiazi (Guangdong, China) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 23 °C73 °F, and about 1,502 mm59 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
10°15°20°25°30°35°50°60°70°80°90°JFMAMJJASOND30°87°12°54°January: high 19 °C / 67 °F, low 12 °C / 54 °FFebruary: high 21 °C / 69 °F, low 14 °C / 57 °FMarch: high 23 °C / 73 °F, low 16 °C / 61 °FApril: high 26 °C / 78 °F, low 20 °C / 67 °FMay: high 28 °C / 83 °F, low 23 °C / 74 °FJune: high 29 °C / 85 °F, low 26 °C / 79 °FJuly: high 30 °C / 87 °F, low 27 °C / 80 °FAugust: high 30 °C / 86 °F, low 26 °C / 80 °FSeptember: high 30 °C / 85 °F, low 25 °C / 77 °FOctober: high 27 °C / 81 °F, low 22 °C / 71 °FNovember: high 25 °C / 76 °F, low 18 °C / 64 °FDecember: high 21 °C / 69 °F, low 13 °C / 56 °F

Precipitation by month

Precipitation per month (mminches)
0100200300048JJanuary: 44 mm / 1.7 inFFebruary: 37 mm / 1.4 inMMarch: 78 mm / 3.1 inAApril: 121 mm / 4.8 inMMay: 204 mm / 8.0 inJJune: 295 mm / 11.6 inJJuly: 205 mm / 8.1 inAAugust: 244 mm / 9.6 inSSeptember: 148 mm / 5.8 inOOctober: 42 mm / 1.6 inNNovember: 48 mm / 1.9 inDDecember: 37 mm / 1.5 in29511.6

Jiazi climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan196712541660441.7
Feb216914571763371.4
Mar237316611967783.1
Apr2678206723731214.8
May2883237426782048.0
Jun29852679288229512
Jul3087278028832058.1
Aug3086268028832449.6
Sep3085257727811485.8
Oct278122712576421.6
Nov257618642170481.9
Dec216913561763371.5
Year3087125423731,50259

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan78%73%2.810:52
Feb79%75%3.211:22
Mar80%76%3.611:58
Apr82%72%4.412:39
May85%69%5.213:14
Jun88%73%5.513:32
Jul86%63%6.013:24
Aug86%65%5.512:55
Sep84%61%5.012:15
Oct79%54%4.511:35
Nov79%65%3.411:00
Dec76%70%2.810:44

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 Jiazi is like

The warmest month is July, with an average high of 30 °C87 °F and a low of 27 °C80 °F. The coldest is January, when highs average 19 °C67 °F and lows 12 °C54 °F. There is a clear seasonal cycle, with 12.8 °C23.1 °F between the average temperature of the warmest and the coolest month.

It is wet, with about 1,502 mm59 in of precipitation per year. The wettest three-month stretch is June–August, which brings 49% of the annual total. The wettest month is June (295 mm12 in), the driest is February (37 mm1.4 in).

Relative humidity ranges from 76% in December to 88% in June. The clearest skies (lowest average cloud amount, 54%) are typical of October. Average wind speed near the ground ranges from 10 km/h (6 mph) in August to 16 km/h (10 mph) in December. Daylight lasts from about 10.7 hours in December to 13.5 hours in June.

Best time to visit Jiazi

Based on these averages, the most comfortable months for sightseeing and outdoor activities are October–March. Average highs then reach 19 °C67 °F to 27 °C81 °F. Precipitation is 37 mm1.4 in to 78 mm3.1 in per month.

The most challenging month is June, which is very wet (295 mm12 in) and humid (88% relative humidity).

Comfort score: months are ranked by how close they come to an ideal. That means 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 Jiazi

  • Wetter months (May–September) — highs 2883 to 30 °C87 °F, lows 2374 to 27 °C80 °F, about 219 mm8.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
  • Drier months (October–April) — highs 1967 to 27 °C81 °F, lows 1254 to 22 °C71 °F, about 58 mm2.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.

How Jiazi compares

The nearest larger place is Puning, about 49 km to the north. Compared with it, Jiazi is on average 0.4 °C0.6 °F warmer. It receives 8% less precipitation (1,502 mm59 in vs 1,633 mm64 in). The difference is largest in December (1.2 °C2.2 °F warmer).

World Climates covers 547 places in China. By annual mean temperature, Jiazi is the 30th warmest of them. By annual precipitation, it is the 102nd wettest. See all of them on the China climate page.

Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Tin Shui Wai (Hong Kong, Cwa), Macau (Macao, Cwa) and Aberdeen (Hong Kong, Cwa).

Nearby places

All places in China

Frequently asked questions

What is the warmest month in Jiazi?

July is the warmest month in Jiazi. Its average high is 30 °C (87 °F) and its average low is 27 °C (80 °F).

What is the coldest month in Jiazi?

January is the coldest month. Its average high is 19 °C (67 °F) and its average low is 12 °C (54 °F).

When does it rain the most in Jiazi?

June is the wettest month with about 295 mm (11.6 in) of precipitation. February is the driest with about 37 mm (1.4 in).

What is the best time to visit Jiazi?

Judging by long-term averages, the most comfortable months are October–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. The gaps are largest 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.

Sources and method