UK mosquito numbers could rise in September due to warm weather and increased humidity, creating ideal conditions for breeding. These factors support the continued activity of native mosquito populations, which have been active throughout the summer. Female mosquitoes lay their eggs in standing water, and the combination of recent rainfall and warm temperatures means mosquito populations may remain high well into autumn. The London School of Hygiene and Tropical Medicine (LSHTM) has noted that these weather conditions are "perfect for a potential surge" in local mosquito activity. Dr Yasser Qureshi, an AI researcher specializing in mosquito behavior, explained that rising global temperatures are increasing the likelihood of mosquito breeding in the UK. Higher temperatures speed up the development of eggs, larvae, and pupae, allowing mosquitoes to reproduce more quickly. Humidity also plays a key role, as it helps mosquitoes retain moisture and survive longer. These factors are likely to influence mosquito populations in the coming months. This seasonal increase follows a summer marked by heightened insect activity across the UK. NHS England reported a 35% rise in visits to its advice pages about bites and stings between May and July, as warmer weather encouraged more outdoor activity. In the UK, late-season mosquito activity is primarily driven by native species, including the common house mosquito (Culex pipiens) and the banded mosquito (Culiseta annulata), both of which are known for biting humans. In addition to seasonal population increases, experts warn that long-term climate change is making the UK a more hospitable environment for non-native mosquito species. Earlier this month, health officials confirmed that the invasive Aedes aegypti mosquito — known for carrying diseases like Zika, dengue, and chikungunya — was found breeding in residential areas in east London for the first time. However, Dr Jolyon Medlock, head of medical entomology at the UK Health Security Agency (UKHSA), said these cases do not currently pose a significant public health risk. He noted that there is no evidence of human infections or mosquitoes being found in public areas, and that the species cannot survive UK winters. Dr Medlock warned that as the climate continues to warm, more invasive mosquitoes may be introduced to the UK. Dr Qureshi added that diseases once confined to regions like Africa, South Asia, and South America may become more common in the UK as temperatures become more favorable for mosquitoes. To help reduce breeding opportunities, the public is being encouraged to remove standing water from outdoor containers, buckets, and plant pots.