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Thailand Weather Alert: Heavy Rain, Thunderstorms, and Sea Warnings on August 4, 2025







Today’s weather in Thailand is poised to deliver quite the dramatic spectacle, as the Thai Meteorological Department (TMD) sends out warnings of heavy rainfall sweeping across 30 provinces. Meanwhile, Bangkok is bracing for a drenching in 20% of its areas, keeping its proverbial umbrellas ready and residents on their toes. Down south, it’s the tumultuous sea waves that are stirring up excitement, anticipated to crest over two meters high in particularly feisty thunderstorm zones. Boat enthusiasts might want to steer clear lest they fancy a rather bumpy ride.

Looking ahead to the next 24 hours, rain clouds seem to have taken a chill pill, bringing minimal showers to northern Thailand thanks to a dampened southwest monsoon impacting the Andaman Sea, Thailand, and the Gulf of Thailand. A sneaky low-pressure system is making a cozy spot for itself over northern Vietnam, plotting its next meteorological antics. Meanwhile, the Andaman Sea and the Gulf of Thailand are experiencing a laissez-faire approach from the winds, with waves serenely lapping at 1 to 2 meters, unless, of course, a thunderstorm decides to shake things up. Mariners are advised to put on their cautious caps and steer clear of tempestuous waters.

Up north, where the map looks as if it’s been sprinkled with thunderstorms over 20% of the region, places like Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, and Tak are all in on the action. The temperatures appear content to hover between a comfortable 24°C and a toasty 37°C. A southwest wind will make its presence known, wafting at a modest speed of 10 to 20 kilometers per hour.

The northeastern skies plan to emulate their northern counterparts with thunderstorms also dabbling in 20% of the area. However, this act unfolds over Nong Khai, Bueng Kan, Nakhon Phanom, Mukdahan, Amnat Charoen, and Ubon Ratchathani, with temperatures strolling between 24°C and 37°C. The trusty southwest wind will maintain a consistent whisper at 10 to 20 kilometers per hour.

In the central region, thunderstorms will indulge 20% of the areas, including spots such as Kanchanaburi and Ratchaburi. With temperatures peaking between 24°C to 38°C, the southwest wind’s usual antics are expected to blow between 10 to 20 kilometers per hour.

Prepare for a slightly more enthusiastic performance in the eastern region, with thunderstorms entertaining 30% of the area. Places like Nakhon Nayok, Chachoengsao, Sa Kaeo, Chanthaburi, and Trat will witness temperatures shimmying between 25°C and 36°C. The wind will assert itself with a breezy air of 15 to 30 kilometers per hour, and sea waves will flirt with 1 meter, sneaking past 2 meters during the most thunderous of encounters.

In the south, where rain dances seem to be in vogue, the eastern coast will see thunderstorms cavorting over 30% of the terrain, particularly in charismatic locales such as Phetchaburi, Prachuap Khiri Khan, Chumphon, Pattani, Yala, and Narathiwat. With temperatures whirling between 24°C and 36°C, a southwest wind will graciously create a theatrical breeze at 15 to 30 kilometers per hour. The sea, not one to be outdone, will perform its wave ballet at around 1 meter, leaping past 2 meters whenever the lightning conductor cues the storm.

On the South’s western flank, 30% of the region will see thunderstorms setting the stage, with Ranong, Phang Nga, Trang, and Satun playing their roles. Temperatures will stay between 24°C and 35°C. From Phang Nga beckoning upwards, the wind, gaining momentum, will howl at 15 to 35 kilometers per hour, and the waves will gracefully arc between 1 and 2 meters. Not to be overshadowed, storms will sway into the spotlight, throwing waves higher still.

Further down in Phuket territory, winds settle into a calmer tempo, serenading at 15 to 30 kilometers per hour. Waves will cozy up to 1 meter but will cheekily rise to 1 or 2 meters whenever thunderstorms burst forth in their full glory. It’s quite the spectacle, as KhaoSod aptly reports.

And as for Bangkok and its bustling vicinity, the stage is set for thunderstorms in 20% of its areas. With temperatures simmering between 26°C and 37°C, a confident southwest wind will strut at 10 to 20 kilometers per hour, ensuring crowds are kept entertained and possibly a tad damp. So, keep those eyes to the skies and feet ready to dodge the sudden rain shower ambushes!


33 Comments

  1. Maya_D August 4, 2025

    I’m so tired of these constant weather alerts. Seems like every other week there’s another ‘dramatic spectacle’ in Thailand.

    • John_Cool August 4, 2025

      It’s like that in every tropical country. What did you expect, sunshine and rainbows all year long?

      • Maya_D August 4, 2025

        I get that it’s normal for the tropics, but it’s still exhausting having to plan around potential storms all the time.

  2. Eric Tran August 4, 2025

    This always seems to happen in the peak tourist season. I wonder how this affects tourism.

  3. LaraGreen August 4, 2025

    I honestly love when it rains in Thailand; the air feels so fresh after a good downpour.

    • Sunny76 August 4, 2025

      You might love the rain, but what about the flooding? It disrupts lives, not to mention traffic!

      • LaraGreen August 4, 2025

        Flooding is definitely a serious issue. I was only speaking from a personal enjoyment perspective.

  4. CaptainJack August 4, 2025

    As a sailor, warnings about 2-meter waves sound like a thrilling adventure!

    • SailorJerry August 4, 2025

      It’s all fun and games until your boat capsizes in one of those ‘adventures’.

      • CaptainJack August 4, 2025

        True enough, I’ve had my fair share of scares. Safety first!

  5. Nina August 4, 2025

    Why isn’t there more being done about climate change? It feels like these events are getting more frequent.

    • GreenWarrior August 4, 2025

      Exactly! Governments need to take immediate action. We’re running out of time!

      • Nina August 4, 2025

        Completely agree. It often feels like we’re shouting into the void, though.

  6. AdventureSeeker88 August 4, 2025

    Thailand’s unpredictable weather actually adds to the excitement for me. Keeps me on my toes!

  7. Larry Davis August 4, 2025

    I think tourists just need to be better informed and prepared for these weather conditions.

  8. Joe August 4, 2025

    I’m supposed to fly out to Bangkok next week. Should I be worried about these weather alerts?

    • TravelerMike August 4, 2025

      Just check your airline’s policy, but usually they’re prepared for these things. Don’t stress too much!

      • Joe August 4, 2025

        Thanks for the reassurance. Will do!

  9. EcoWatcher August 4, 2025

    Heavy rains are one thing, but we shouldn’t ignore the rising sea levels that are threatening coastal regions.

  10. Alex B. August 4, 2025

    I’ve always wanted to experience a real tropical storm. Sounds thrilling!

    • Weathered_Wisdom August 4, 2025

      I’d recommend you watch it from a safe distance if you value your safety!

      • Alex B. August 4, 2025

        Appreciate the advice. I’ll keep that in mind!

  11. Raven August 4, 2025

    Bangkok is always wet during this time, but it’s the humidity that really gets to me.

  12. Explorer_Pete August 4, 2025

    These storms sound intense but nature can be so beautiful amidst chaos.

    • NatureLover August 4, 2025

      True beauty often lies in the contrast. Thunderstorms can be mesmerizing when viewed safely.

      • Explorer_Pete August 4, 2025

        Absolutely, it’s the little quiet moments during a storm that are unforgettable.

  13. Larry D August 4, 2025

    Why are the authorities not improving infrastructure to better handle these rainfalls?

    • Prudent_Plan August 4, 2025

      That requires significant investment and planning. Not always easy with budget constraints.

      • Larry D August 4, 2025

        True, but long-term benefits surely outweigh initial costs. It’s worth considering.

  14. Isabel August 4, 2025

    Weather trends have been like this for centuries, but I worry about today’s media hyping everything up.

    • innocent_bystander August 4, 2025

      Media sensationalism is real. But I guess they’re only trying to raise awareness.

      • Isabel August 4, 2025

        Awareness is key, but not at the expense of causing unnecessary panic.

  15. Mark R August 4, 2025

    Does anyone know if the trains will be operational during the thunderstorms?

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