Windsor in September
September weather, activities, events & insider tips
September Weather in Windsor
Is September Right for You?
Advantages
- Lower accommodation prices as students return to universities, dropping hotel rates by 15-25% from August peak season
- Perfect temperature range 12-22°C (54-72°F) for walking Windsor Great Park's 2,020 hectares (4,990 acres) without overheating
- Autumn colors begin transforming Windsor Great Park and Home Park, creating impressive photography conditions without summer crowds
- Queen Elizabeth II Memorial events and exhibitions at Windsor Castle reach full programming after summer installation period
Considerations
- Rain occurs 10 days of the month with unpredictable afternoon showers lasting 30-45 minutes, requiring indoor backup plans
- Daylight hours decrease from 13 to 11 hours during September, limiting outdoor sightseeing time especially for evening activities
- Variable weather means packing for both 12°C (54°F) mornings and 22°C (72°F) afternoons in the Easttimor day
Best Activities in September
Windsor Castle State Apartments Tours
September's cooler temperatures make the lengthy indoor walking tour of State Apartments comfortable, while reduced summer crowds mean shorter queues and better photo opportunities. The Queen Mary's Dolls' House exhibition is less crowded, allowing detailed viewing. Morning tours (10am-11:30am) avoid afternoon rain showers that drive more visitors indoors.
Thames Riverside Walking Tours
September's mild 12-22°C (54-72°F) range is ideal for 2-3 hour riverside walks from Windsor Bridge to Eton College. Early autumn light enhances photography of riverside Georgian architecture. Morning walks (9am-12pm) typically avoid afternoon showers. The Thames path offers 5 km (3.1 miles) of scenic walking without summer heat exhaustion.
Eton College Historical Tours
September marks the start of Eton's academic year, adding authentic atmosphere with students in residence. Cooler weather makes the 90-minute walking tours of courtyards and chapel comfortable. The College Chapel and Museum of Eton Life are perfect rainy day alternatives when September showers hit.
Windsor Great Park Cycling Routes
September's mild temperatures and lower humidity make cycling the 24 km (15 miles) of park roads comfortable. The Long Walk's 4.8 km (3 miles) straight avenue offers impressive early autumn colors. Morning cycling (8am-11am) typically avoids afternoon rain, and cooler air means less sweating in cycling gear.
Legoland Windsor Theme Park Visits
September's cooler weather means comfortable queuing and walking. Term-time weekdays have significantly reduced crowds after school holidays end. The 61-hectare (150-acre) park requires extensive walking, which is pleasant in 12-22°C (54-72°F) temperatures rather than summer heat. Many attractions have covered queuing areas for rain protection.
Royal Ascot Racecourse Heritage Tours
September offers behind-the-scenes racecourse tours without racing crowds. The grandstand and Royal Enclosure areas are accessible for photography and historical talks. Cooler weather makes the 2-hour walking tours of facilities comfortable, including outdoor viewing of the 2.8 km (1.75 mile) racing circuit.
September Events & Festivals
Windsor Festival Fringe
Multi-venue arts festival featuring classical music, comedy, and theater performances across Windsor venues including St. George's Chapel and Guildhall. Indoor venues provide perfect rainy-day entertainment during September's variable weather.
Windsor Harvest Festival Market
Local farmers market expands to 3-day weekend event featuring seasonal produce, artisan foods, and craft demonstrations. Held in Windsor Guildhall area with covered stalls protecting from September showers.