Core Viewpoint - The recent hot and humid weather in Beijing is attributed to the northward movement of the subtropical high pressure, leading to a "sauna-like" experience for residents [1][3]. Weather Conditions - The phenomenon known as "returning south weather" typically occurs from February to April in southern China, but the current conditions in Beijing are due to the subtropical high pressure affecting the region [1][3]. - The Central Meteorological Observatory indicates that the hot and humid weather is normal for summer, although it has arrived earlier this year compared to previous years [3]. Forecast and Duration - The forecast predicts that the hot and humid weather will persist for an extended period, with 12 out of the next 14 days in Beijing expected to have rainfall [4][5]. - The highest temperatures are projected to reach 37°C on July 12 and 13, with the subtropical high pressure continuing to dominate the weather in the region [4][5]. Health Risks - High humidity and heat can lead to health risks such as heatstroke, with recommendations for the public to seek shade, stay hydrated, and seek medical attention if symptoms worsen [6].

Core Viewpoint - The recent hot and humid weather in Beijing has sparked discussions about it resembling the "return of the southern rainy season," but meteorological data indicates a different cause for the discomfort [1][4]. Group 1: Weather Conditions - On July 3, Beijing recorded a temperature of 28.5°C with a humidity level of 83%, contrasting with Guangzhou, which had a temperature of 33.6°C and a humidity of 60% [1][4]. - The phenomenon referred to as "return of the southern rainy season" typically occurs from February to April in southern regions, while the current weather in Beijing is attributed to the subtropical high pressure leading to a "sauna-like" environment [4]. Group 2: Meteorological Analysis - The subtropical high pressure has moved northward, bringing moist summer winds to northern regions, resulting in increased humidity and frequent rainfall in Beijing [4]. - Meteorological departments have warned that high humidity and heat can lead to heatstroke, advising the public to recognize symptoms and seek relief [4].

Core Viewpoint - Beijing is experiencing unusual humidity levels comparable to southern regions, leading to discomfort among residents due to high temperatures and moisture in the air [1][2][4]. Weather Conditions - Recent weather in Beijing has shown humidity levels exceeding 70%, with temperatures around 30°C, resulting in a perceived temperature of approximately 35°C [2]. - The current weather pattern is influenced by warm and humid air from the subtropical high-pressure system, causing conditions similar to the typical summer heat experienced in late July to early August [2][4]. Humidity Analysis - The minimum relative humidity in certain districts of Beijing has approached 60%, significantly higher than the historical average of 12.6% for early July [2][4]. - The ongoing high humidity is attributed to the persistent influence of warm, moist air from the western Pacific subtropical high-pressure system, which has led to increased rainfall in the region [4]. Rainfall and Relief - Since June 26, Beijing has experienced continuous rainfall, with forecasts indicating further significant rain, which is necessary to alleviate the current humidity levels [4]. - Meteorological experts suggest that a substantial rain event is required to convert atmospheric moisture into precipitation, providing temporary relief from the high humidity [4].