Weather in Nantong

Planning a trip or just curious about the weather in Nantong? Here you will find the most up-to-date information on weather conditions, including detailed forecasts and clear charts.

Nantong is located in a humid subtropical climate zone, characterized by four distinct seasons. This means travelers should expect significant fluctuations in temperature and humidity throughout the year, from cool winters to hot and humid summers.

Winter in Nantong (from December to February) is cool, with average temperatures around 4.5°C - 6.1°C, while minimum values can approach freezing. Summer (from June to August) is hot and humid, with average temperatures rising to 25°C - 29°C. July is the hottest month (average temperature 28.9°C) and is also marked by the highest amount of rainfall (8 mm) and rainy days (18 days).

Spring (March-May) and autumn (September-November) are comfortable transitional periods with moderate temperatures. In spring, the air warms up on average from 11.6°C to 21.2°C, while in autumn it gradually cools from 24.6°C to 13.4°C. The highest rainfall occurs in summer, while winter, especially December (only 1 mm of precipitation), is the driest period.

The annual temperature progression in Nantong shows distinct seasonality, offering travelers diverse climatic conditions throughout the year. The coldest month is usually January: the average air temperature at this time is about 4.5°C, with night-time minimums dropping on average to 0.8°C, and daytime highs rarely exceeding 8.3°C. Conversely, the peak of summer heat occurs in August, when the average temperature reaches 29.1°C. In August, daytime temperatures regularly rise above 32°C, and nights remain very warm, with minimum values around 25.9°C. Thus, the annual temperature range in Nantong is quite significant.

Summer months in Nantong, especially July and August, are characterized by persistent and humid heat. Daytime maximum temperatures often exceed the 30-32°C mark, and average air temperatures confidently stay in the 25-29°C range. Nights also bring little relief from the heat, as minimum temperatures rarely drop below 21-26°C. This creates a sensation of constant warmth. Notably, diurnal temperature fluctuations in the summer period are generally less pronounced compared to other seasons: the difference between day and night figures averages about 6-7°C.

Winter in Nantong brings noticeable coolness, although severe frosts are not typical for this region. From December to February, average temperatures fluctuate between 4.5°C - 6.1°C. Night-time temperatures, especially in January and December, can approach the freezing mark (averaging 0.8°C - 1.8°C), while during the day the air usually warms up to 8-10°C. Unlike the summer period, diurnal temperature fluctuations are more noticeable in winter: the difference between maximum and minimum temperatures can reach 7-8°C, making the morning and evening hours particularly fresh and bracing.

In Nantong, there is noticeable seasonality in the distribution of precipitation. Although it rains throughout the year, intensity and frequency change significantly from month to month. In general, one can distinguish a wetter summer period and relatively dry autumn-winter months.

The peak of precipitation falls on the summer months. July is the wettest month of the year: on average, 8 mm of precipitation falls, and the number of rainy days reaches 18. This means that almost two-thirds of the month can be rainy. June is also quite rainy, with 6 mm of precipitation and approximately 13 rainy days. During these summer months, precipitation can be more intense. It is also worth noting that August and September each have 13 rainy days, although the total amount of precipitation in these months is somewhat lower (4 mm and 5 mm respectively).

The driest period in Nantong is late autumn and early winter. December stands out as the driest month, when only 1 mm of precipitation falls, and the number of rainy days is minimal – about 6. October and November are also characterized by a small amount of precipitation (2 mm each) and a low number of rainy days (about 7). During these periods, rains are generally less abundant. Given the monthly average temperatures, precipitation in Nantong falls predominantly as rain; snowfall is not a typical phenomenon.

Given the distinct change of seasons in Nantong, packing requires careful consideration. Comfortable footwear for long walks is your main companion in any weather. The principle of layering in clothing will be a real lifesaver, especially in spring (March-May) and autumn (September-November). During these periods, the weather can be unpredictable, so a light, possibly windproof jacket, sweater, or fleece that is easy to take off or put on will be very useful. Don't forget an umbrella, as rain is likely year-round, although its intensity and frequency vary; the number of rainy days is significant even in months with low total rainfall.

In summer, especially from June to August, hot and humid weather settles in Nantong. Average temperatures range from 25°C to 29°C, and maximums can exceed 32°C. During this period, you will need light, breathable clothing made from natural fabrics (cotton, linen), shorts, and T-shirts. Be sure to take sunscreen, a hat, and sunglasses to protect against the active sun. July is the wettest month with the highest number of rainy days, so a compact umbrella or a light raincoat will be absolutely indispensable.

Winter (from December to February) in Nantong is cool, with average temperatures around 4.5°C - 6°C, and at night the thermometer can drop close to zero. For a comfortable stay at this time of year, pack warm clothing: a winter or mid-season coat (preferably windproof), warm sweaters, and thick trousers. A hat, scarf, and gloves will also be relevant, especially for those sensitive to cool and potentially windy weather. Despite the fact that winter is considered a drier season in terms of rainfall in millimeters, a certain number of rainy days still persists, so a small umbrella may come in handy.