Bangkok Weather September Averages, Thailand

    • Temperature Temperature 28.5°C 83°F
    • High Temperature High Temperature 32°C 90°F
    • Low Temperature Low Temperature 25°C 77°F
    • Day Temperature Day Temperature 29.4°C 85°F
    • Night Temperature Night Temperature 28.2°C 83°F
    • Sunshine Hours Sunshine Hours 5 hours
    • Rainfall Rainfall 220 mm
    • Rainfall Days Rainfall Days 22 days
    • Sea Temperature Sea Temperature 29°C 84°F

    Bangkok Weather for September 2023

    What's the Weather like in Bangkok in September

    Rainfall and Sunshine Hours

    In September, Bangkok receives at least 5 hours of sunshine per day. It doesn't feel much cooler as autumn approaches and there is a lot of rainfall this month, with around 220mm expected, however, Phuket has an average of 440mm of rain in September! September is the wettest month in the city, however, it's the penultimate month for wet season. If you are visiting the area, pack a mac or raincoat, as you will encounter a few showers. This month is also still humid, with temperatures ranging between 25°C and 32°C.


    The daily average temperature for Bangkok in September is usually around 29°C and it's still very warm, despite the high chance of showers. The temperature is only 2 degrees warmer than what we would consider our coldest month, January. The highest ever recorded temperature in September for Bangkok is 37°C with the lowest being 22°C. However, temperatures are generally consistent with the averages for each month.

    Sea Temperature

    The average sea temperature in September is around 29°C, which feels more than adequate to take a swim to relax or cool off from the heat. The average humidity for the resort is around 77%, meaning dangerous heat conditions are likely to occur. It's very muggy and sticky, so it's best to avoid spending long periods outdoors. Ensure that you're keeping hydrated by drinking lots of fluids and apply a high SPF to protect your skin from the sun.

    Bangkok Hotels in September

    The Sukhothai

    The Sukhothai is a five-star hotel in the centre of Bangkok. Ornate decorations and modern facilities will make your stay truly memorable, and suites have balconies or terraces that overlook the pools, garden or lotus ponds, helping relaxation easy. If relaxation is on your radar, the spa and 25-metre infinity pool will get you there in no time.

    Beautiful décor is really just scratching the surface with this complex. Located close to the financial district of Bangkok, the 210 hotel rooms boast air conditioning, flat screen televisions, Nespresso coffee making machines and an en-suite bathroom with a large tub and walk in shower. The hotel restaurant serves some of most delicious Thai food in the city. However, you can also sample the champagne Sunday brunch, chocolate buffet or Italian cuisine. The perfect choice for those who want to encounter the best sights in Bangkok, this hotel will provide a luxurious stay.

    Bars and Restaurants

    Steve Cafe & Cuisine

    If you want to experience local delicacies then take a wander to Steve Café & Cuisine. Here, you'll find a range of Thai dishes on offer, with friendly and efficient service. This restaurant can get busy at times, but it's always welcoming, with good food.


    You might be surprised to find Indian cuisine in this part of the world, but that's exactly what Gaggan offers. Based in a white villa, the menu features ten courses, including curries, for a range of dishes that will pleasantly surprise your taste buds.

    Things to do in Bangkok in September

    Royal Barges

    Bangkok is a beautiful city, with many activities and views to experience. Many tourists love to explore the local culture, and one way to do that is by visiting a museum or gallery. Royal Barges National Museum showcases the country's royal boats and the best way to travel here is via motorcycle taxi.

    The striking long tail boats are now used for royal ceremonies and are exquisitely decorated with intricate detailing. The largest boat on display is over 45m long, requiring a 50 man crew, as well as others. The King's barge is the Golden Swan which, as the name suggests, features the golden head of a swan interweaved in its design. Other beautiful barges are also on display here so ensure you capture the imagery on your camera or phone as it truly is spectacular.

    Siam Square

    If you enjoy shopping then there are many places to discover. Siam Square is the heart of teenage amusement with trendy pop music and small boutiques, but there are other things to see, like the impressive electronics store. If you are looking for gifts to take back home then King Power is the hot spot to visit. Boasting duty free style goods, you'll need to bring your passport to pick up any discounted items. However, you will find other promotions on offer, so it's well worth a visit.

    Dates to note

    During the middle of the month, there is a food festival in Chinatown, with an abundance of local Thai cuisine, plus live music and shows. There is also the International Festival of Dance and Music (Part 2), with international artists in rock, jazz, pop, opera and classical. Another event is the Mid-Autumn Moon Festival, which takes place across the city with moonlit ceremonies with cakes, candles and incense

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