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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Daily Press UK weather desk. Data from national met services via Open-Meteo.
The monsoon season is a seasonal reversal of wind patterns that brings a distinct rainy period, most famously in South Asia and Southeast Asia, typically lasting from June to September. For UK travellers, understanding its timing and intensity is essential for planning safe trips.
What is the monsoon season and where does it occur?
A monsoon is not simply a rainstorm; it is a large-scale shift in prevailing winds that causes a prolonged wet season. The most well-known monsoon weather affects the Indian subcontinent, Southeast Asia, and parts of West Africa. In these regions, the monsoon season months run from roughly June to September, though exact start and end dates vary by country. The phenomenon is driven by temperature differences between land and sea, drawing moisture-laden air inland.
How does the monsoon season affect travel and daily life?
During the monsoon season Asia sees heavy, often torrential rainfall that can cause flooding, landslides, and transport disruptions. For anyone visiting the region, practical takeaways include checking local forecasts, avoiding low-lying areas, and packing waterproof clothing and insect repellent (standing water increases mosquito-borne disease risk). In the UK, we experience no monsoon, but our own wetter periods can be understood through similar atmospheric dynamics.
Is the monsoon season dangerous?
It can be, especially in areas prone to flooding and landslides. However, for most travellers the main risks are transport delays, slippery roads, and increased insect activity. Staying informed via local weather services reduces danger.
When is the best time to avoid monsoon season in Southeast Asia?
The driest period across much of Southeast Asia is typically December to February. For Thailand, Vietnam and Cambodia, the monsoon season months are May–October, with heaviest rain often in August and September.
Does the UK ever experience monsoon weather?
No – the UK does not have a true monsoon. Our weather is driven by Atlantic frontal systems. However, heavy, prolonged rain can occur, particularly in autumn and winter, and you can follow the latest conditions on our UK weather hub or check 10 day weather forecast UK.