Climate and monthly weather forecastJiujiang, China
Climate and monthly weather forecast
The climate of Jiujiang
Jiujiang, located in China, endures a Humid Subtropical climate, as classified by the Köppen climate classification system. Specifically, Jiujiang has a Cfa climate, which implies that there is no dry season, characterized by the humidity and the summer heat.Temperature averages throughout the year range from a high of 8.3°C (46.9°F) in January to 31.9°C (89.4°F) in August, while the average lows vary from 2.5°C (36.5°F) to 24.7°C (76.5°F) in the same months. Overall, summers stand out as hot and the winters remain cool. Relative humidity varies slightly, starting from 67% in December and reaching up to 83% in June.
Rainfall in Jiujiang follows an evident pattern, with the lightest showers observed in December at 41mm (1.61"), gradually increasing to its peak of 270mm (10.63") in July. Snowfall records paint a different picture, seeing significant reductions from January to March and completely disappearing from April onwards. Hours of daylight range modestly between 10.3 hours in December and 14 hours in June, and sunshine hours follow a similar pattern.
The data reveals some distinct patterns correlating UV index, wind speed, visibility, and cloud percentage with the changing seasons. UV index fluctuates from a maximum of 7 during July to a minimum of 2 during December. Wind speeds generally average around 9km/h (5.6mph) throughout the year, with occasional gusts reaching up to 14.7km/h (9.1mph). Visibility remains fairly consistent at 9km (5.6mi) across all months, while cloud percentage oscillates around 46-54%.
The best time to visit Jiujiang
Given the climatic patterns revealed in the data, it's clear that April through June appear as the most inviting months for a visit to Jiujiang. During this period, the average high temperatures range from 21.4°C (70.5°F) to 28.3°C (82.9°F), and the lows from 13°C (55.4°F) to 21.3°C (70.3°F), which suggests pleasant, warm weather. Rainfall is moderate and starts to increase from June, which brings a refreshing flavor to the weather. This timeframe also provides longer daylight hours, between 12.9 hours to 14 hours, ensuring tourists ample time to explore and enjoy without the inconvenience of early sundown.The worst time to visit Jiujiang
Rule out December through February when planning a trip to Jiujiang. This period marks a cold and often snowy season in the city, where temperatures can dip as low as 2.5°C (36.5°F). February also clocks in increased snowfall levels with as much as 197mm (7.76"). The chilly weather conditions combined with less daylight limit the scope for tourists to partake in outdoor activities comfortably.Spring weather in Jiujiang
Marked by a welcome break from the frigid winters, spring in Jiujiang, typically from March to May, sees an increasing trend in temperatures. Highs vary between 15.7°C (60.3°F) to 26.1°C (79°F), while the lows bounce between 8.3°C (46.9°F) and 17.8°C (64°F). Rainfall shows an upward trend during this season, reaching up to 100mm (3.94") in March and peaking at 158mm (6.22") in May. Despite increased rains, the spring season in Jiujiang allows ample daylight hours, ranging from 12 hours in March to 13.6 hours in May, for visitors to explore the city.Summer weather in Jiujiang
Running from June to August, summer in Jiujiang presents a mixed picture. While temperatures soar, peaking at 31.9°C (89.4°F) in August with lows around 24.7°C (76.5°F), rainfall too reaches its yearly maximum, offering respite from the heat. July witnesses the highest rainfall at 270mm (10.63"). Despite the torrential rains, benefits include increased daylight hours, reaching a high of 14 hours during June, which aids explorers and tourists.Autumn weather in Jiujiang
Autumn ushers in moderate weather conditions in Jiujiang. It kicks off in September with relatively high temperatures of 28.1°C (82.6°F) and dwindles to 16.9°C (62.4°F) by November. Lows range from 20.5°C (68.9°F) to 10.1°C (50.2°F). Rainfall sees a significant slump, with November noting a mere 44mm (1.73"). Additionally, daylight hours start reducing with the onset of fall.Winter weather in Jiujiang
The arrival of winter in December signals a shift toward colder and snowier conditions in Jiujiang. High temperatures fall to around 10.5°C (50.9°F) and lows can drop to 4.5°C (40.1°F) in December. Snowfall marks the calendars from December, peaking at 111mm (4.37") in January. Despite the cold, winter in Jiujiang offers bright, sunny days with daylight hours oscillating between 10.5 hours to 10.3 hours from December to February. However, it might not be the ideal time for outsiders due to the chill and reduced daylight hours.Weather in January
Chilly weather sets the stage in Jiujiang, China as the first month of the year commences. A substantial decrease in daylight hours paves the way for an icy atmosphere with temperature fluctuations between 2.5°C (36.5°F) and 8.3°C (46.9°F). Weather in January »Weather in February
The slightly warmer temperatures in February signal the farewell to the severe winter. However, the relief is accompanied by an increased trend in relative humidity and rainfall leading to damp weather conditions. The snow also adds to the moisture content, with a significant increase to 197mm (7.76") from 111mm (4.37") in January. Weather in February »Weather in March
The first month of the spring, March, is a moderate month in Jiujiang, China, with an average temperature fluctuating between 15.7°C (60.3°F) and 8.3°C (46.9°F). The arrival of March brings an increase in high-temperatures, moving from a cool 10.6°C (51.1°F) in February to a refreshing 15.7°C (60.3°F). Weather in March »Weather in April
April manifests a clear indicator of the spring season in full swing. A gradual rise in temperatures, decreased snow occurrences, and consistently high rainfall further validates this. It is also notable for extended daylight, increased pressure, and occasional wind gusts up to 12.9km/h (8mph) contributing to a breezy environment. Weather in April »Weather in May
The climate in May involves a visible shift towards summer. As the snow clears out completely, the outdoor environment becomes considerably warmer and enriches with 13.6 hours of daylight. A substantial increase in rainfall to 158mm (6.22") contributes to the high humidity indicating an impending summer season. Weather in May »Weather in June
June boasts the charm of summer with warmth thoroughly spread across Jiujiang. The temperatures reach the peak with the rainfall hitting its highest mark at 255mm (10.04"). Despite the increased humidity, the tolerable conditions compel the residents to bask under 7.5 hours of sunshine. Weather in June »Weather in July
July sees a continuation of the summer season with temperatures reaching up to 31.5°C (88.7°F). The highest average temperature accompanied by the longest daylight hour of 14 hours solidifies the reign of summer in July. The city blooms under the consistent sunshine despite undergoing increased rainfall. Weather in July »Weather in August
August continues to hold high temperatures in Jiujiang with a slight dip in average temperature compared to July, resonating with the start of the end of summer. August distinguishes itself by showcasing the highest daylight hours, accounting for a breathtaking summer sunset view. Weather in August »Weather in September
September acts as the transition month leading to autumn. The average temperatures take a sharp plunge down to 28.1°C (82.6°F), indicating the forthcoming cooler months. The rainfall follows a decreasing trend while the snow remains absent, adhering to a dry climate. Weather in September »Weather in October
October in Jiujiang brings forth mild weather, as the scorching temperatures fade into the comfort of autumn. The city witnesses a decrease in daylight hours and temperature, suggesting that winter is not too far away. Amidst the serene and calm weather, gusty winds reaching up to 14.7km/h (9.1mph) occasionally sweep through the region. Weather in October »Weather in November
November is characterized by a further dip in temperature, reminding the city of the upcoming winter. The wintry winds, coupled with lowered pressure down to 1022.2 mb, insinuate the arrival of colder months. As the last remnants of autumn fade, the first instances of snow become evident, setting the stage for winter. The arrival of November corresponds with a shift in temperature, down from a warm 23.1°C (73.6°F) in October to an enjoyable 16.9°C (62.4°F). Weather in November »Weather in December
December brings the year to a close with chilly weather firmly established in Jiujiang. Snowfall levels rise up to 51mm (2.01"), enveloping the city in a white blanket. The colder temperatures add a festive vibe to this bustling city in China, thereby giving a fitting end to the year. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Jiujiang, China
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.3°C).
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure
Jiujiang, China
- Average pressure in January:
1026.5mbar - Average pressure in February:
1023mbar - Average pressure in March:
1019.6mbar - Average pressure in April:
1014.5mbar - Average pressure in May:
1009.8mbar - Average pressure in June:
1005.2mbar
- Average pressure in July:
1004.3mbar - Average pressure in August:
1005.3mbar - Average pressure in September:
1011.8mbar - Average pressure in October:
1018.5mbar - Average pressure in November:
1022.2mbar - Average pressure in December:
1026.1mbar
The month with the highest atmospheric pressure is January (1026.5mbar).
The month with the lowest atmospheric pressure is July (1004.3mbar).
Average wind speed
Jiujiang, China
- Average wind speed in January:
9.8km/h - Average wind speed in February:
9.9km/h - Average wind speed in March:
9.3km/h - Average wind speed in April:
8.5km/h - Average wind speed in May:
8.1km/h - Average wind speed in June:
7.5km/h
- Average wind speed in July:
8.4km/h - Average wind speed in August:
8.6km/h - Average wind speed in September:
9.6km/h - Average wind speed in October:
9.8km/h - Average wind speed in November:
9.3km/h - Average wind speed in December:
9.7km/h
The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is June (7.5km/h).
Average humidity
Jiujiang, China
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is December (67%).
Average rainfall
Jiujiang, China
- Average rainfall in January:
44mm - Average rainfall in February:
70mm - Average rainfall in March:
100mm - Average rainfall in April:
98mm - Average rainfall in May:
158mm - Average rainfall in June:
255mm
The wettest month (with the highest rainfall) is July (270mm).
The driest month (with the least rainfall) is October (39mm).
Average rainfall days
Jiujiang, China
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
10.9 days - Average rainfall days in March:
16.3 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
21.6 days
- Average rainfall days in July:
24 days - Average rainfall days in August:
22.6 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is July (24 days).
The month with the least rainy days is December (8 days).
Average snowfall
Jiujiang, China
The month with the highest snowfall is February (197mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Jiujiang, China
- Average snowfall days in January:
5.6 days - Average snowfall days in February:
4.6 days - Average snowfall days in March:
1.1 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Jiujiang, China
- Average daylight in January:
10h and 30min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 54min - Average daylight in May:
13h and 36min - Average daylight in June:
14h and 0min
- Average daylight in July:
13h and 48min - Average daylight in August:
13h and 12min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 42min - Average daylight in December:
10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January:
4h and 48min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 42min - Average sunshine in May:
7h and 54min - Average sunshine in June:
7h and 30min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 12min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 18min - Average sunshine in December:
5h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Jiujiang, China
- Average sunshine days in January:
18.7 days - Average sunshine days in February:
14 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
7.4 days
- Average sunshine days in July:
5.5 days - Average sunshine days in August:
6.3 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
21 days
The month with the most sunshine days is December (21 days).
The month with the least sunshine days is July (5.5 days).
Average UV index
Jiujiang, China
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Jiujiang, China
The months with the most cloud cover are February and June (Cloud cover 54).
The month with the least cloud cover is December (Cloud cover 37).
Average visibility
Jiujiang, China
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (9km).
The months with the lowest visibility are June and July (8km).





