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Thailand Weather Update: Heavy Rainfall and Storms Hit 43 Provinces – June 2025



As the sun begins its hesitant rise over Thailand, casting a faint glow through the dense blanket of clouds, a climactic drama is unfolding across the country. Courtesy of the Thailand Meteorological Department (TMD), today’s forecast is nothing short of a grand spectacle of nature with heavy rainfall expected to downpour like a tempestuous showstopper over the nation’s upper regions. Of the nation’s provinces, a sizable cast of 43 will star in this meteorological showcase, leaving inhabitants bracing for furious flash floods, swift forest runoff, and treacherous landslides. It’s the kind of weather forecast that keeps farmers on edge and mariners cautious as they navigate the surging seas.

The atmospheric tension is thanks to a monsoon trough dramatically stretching its rain-soaked arms across northern Thailand and into Laos, merging with an eager low-pressure area loitering over northern Vietnam. This duet is joined by a moderate southwest monsoon that sweeps over the Andaman Sea, Thailand, and the Gulf of Thailand, orchestrating wind and wave symphonies.

For those navigating the upper Andaman Sea, expect the waves to rhythmically rise to 1-2 meters, performing high jumps beyond 2 meters during thunderous choruses. Meanwhile, down in the lower Andaman Sea and the upper Gulf of Thailand, the waters will dance to a slightly calmer beat, with waves mostly around 1 meter, crescendoing to a chaotic 2 meters amid storms. Sailors, heed the warnings and sail the safer seas, lest you be caught in the wrath of these aqueous giants.

Up in Thailand’s northern territories—Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Phichit, Phitsanulok, Phetchabun, Tak, and Kamphaeng Phet—thunderstorms are slated to reign over 70% of the region. So, pack those raincoats and prepare to splash through puddles, as temperatures play a game of highs and lows between 23-26°C, peaking swiftly to a balmy 31-36°C. The southwest winds will make their presence felt with a gentle whisper, blowing at a casual 10-20 km/h, adding a breezy flair to the already wet affair.

Heading east, the northeastern provinces such as Loei, Nong Khai, and Udon Thani won’t escape the storm’s lively embrace either. Thunderstorms are set to gather over 60% of the lands, with temperatures buttoning up from a fresh 22-24°C to a more torrid 30-35°C. Once more, it’s the southwest wind leading this performance with its steady 10-20 km/h pace.

Central Thailand is also in for a drenching surprise, with 70% of the region, from Nakhon Sawan to Kanchanaburi, preparing for its watery rehearsal. Here, the thermometer will mischievously dip between 23-26°C, then leap to 34-36°C. The winds, ever the gentle compositors, will maintain their 10-20 km/h rhythm, orchestrating yet another symphony of rain and wind.

In the eastern provinces like Nakhon Nayok and Trat, residents will need sturdy umbrellas as thunderstorms claim 60% of the domain. With temperatures teetering between 24-27°C and highs of 28-33°C, the region will witness the brisk southwest winds ushering in waves that exceed 2 meters during those boisterous thunderstorms. Don your rain boots and ready your boats for a splashy escapade!

Move down south, and you’ll find the weather isn’t much kinder. Both the East and West Coasts prepare to wade through the impending waterworks. From Pattani to Narathiwat, and Ranong to Satun, thunderstorms and 30% showers make for regular weather companions. The temperatures will play an encore ranging from 23-26°C to even 36°C. Meanwhile, the sea looms with character, showcasing spirited waves near the 1-meter mark, yet prone to mighty leaps exceeding 2 meters during stormy bouts.

And lastly, for the vibrantly chaotic heartbeat of Thailand, Bangkok, we foresee the city wrapped in clouds and rain, at least 60% of it. Temperatures won’t stray far, dancing between a comfortable 25-28°C, throwing an occasional curve up to 36°C. As always, the steady southwest winds will breeze through the city, whispering secrets of far-off storms at 10-20 km/h.

As the skies open up and rains commence their grand show, each region will react in its own unique way, tribes and towns adjusting to the unabating whims of weather. Whether you’re nestled amongst the northern mountains or sunning by southern shores, today’s climatic pageant is a reminder of nature’s might—unpredictable yet enchanting.


31 Comments

  1. NatureLover123 June 27, 2025

    This weather sounds terrifying, yet oddly beautiful. Mother Nature truly knows how to put on a show!

    • CynicalSam June 27, 2025

      It’s only beautiful until it starts destroying homes and livelihoods. People can die in these storms.

      • NatureLover123 June 27, 2025

        Of course, safety is paramount. I just meant that the power of nature is awe-inspiring, though it should be respected.

    • SunnyGirl June 27, 2025

      I completely agree with you, NatureLover123! There is something whimsically enchanting about the power of storms.

  2. WeatherWatcher June 27, 2025

    The monsoon trough and low-pressure areas seem to be getting worse every year. Are these signs of climate change?

    • GreenGuru June 27, 2025

      Absolutely! Climate change is likely exacerbating these weather patterns. We should be concerned.

      • SkepticSteve June 27, 2025

        Not everything can be blamed on climate change. This is typical monsoon weather for Thailand.

      • WeatherWatcher June 27, 2025

        While it might be typical, the severity is definitely increasing. We can’t ignore the data.

  3. TravelerTim June 27, 2025

    Guess I’ll have to rethink my travel plans to Thailand. I was hoping for some sunny beach days!

    • LocalThai June 27, 2025

      Don’t let it deter you! Thailand is beautiful rain or shine. Just come prepared with an umbrella.

      • TravelerTim June 27, 2025

        Thanks for the advice, LocalThai! I might consider the north where it’s less stormy.

  4. FarmerJoe June 27, 2025

    The floods are going to ruin the crops again! We need better support from the government.

    • GardenerGina June 27, 2025

      I feel your pain, FarmerJoe. Maybe it’s time to look into flood-resistant crop varieties?

      • FarmerJoe June 27, 2025

        That’s a good idea, Gina. I’ll look into it, although it requires some serious investment.

      • NatureLover123 June 27, 2025

        Supporting local farmers in acquiring better crop varieties should be a priority!

  5. SeaSailor June 27, 2025

    As a sailor, I’ve experienced the wrath of such weather. The key is respecting the ocean and being well-prepared.

  6. CityDweller June 27, 2025

    Bangkok is always so hectic during these storms. Almost romantic, but mostly just chaotic.

    • RainyDayDaisy June 27, 2025

      I actually love the city in the rain. It might be hectic, but it slows everyone down a bit.

    • WetInBangkok June 27, 2025

      I think the sheer energy of Bangkok makes the rain seem less dreary. There’s always something happening!

  7. ClimateConcerned June 27, 2025

    Yet again, reports like these highlight just how clueless our leaders are about preparing for climate-induced disasters!

  8. PattyP June 27, 2025

    As exciting as this sounds, is there any word on relief efforts for those who might be affected?

  9. SailTheSeas June 27, 2025

    The Andaman Sea can be unpredictable, but it’s part of the thrill of sailing. Just stay safe out there!

  10. EcoExplorer June 27, 2025

    I wonder if increased frequency of such storms is affecting wildlife migrations, or am I overthinking it?

  11. JohnnyB June 27, 2025

    Makes you wonder about the effects on tourism. Lots of rain can deter visitors and impact the economy.

  12. LaughingLarry June 27, 2025

    Who’s here for the splashy escapades? Me and my family are vacationing near the coast soon!

    • WorriedJane June 27, 2025

      Don’t you think it’s risky taking your family there during a massive storm?

      • LaughingLarry June 27, 2025

        All depends on how you approach it! We’re ready for some adventure.

    • CoastalKevin June 27, 2025

      A bit of a storm isn’t the end of the world. Just stay informed and prepared.

  13. RainReader June 27, 2025

    I think these forecasts are fascinating – they illustrate how intricate and interconnected atmospheric conditions are.

  14. PracticalPete June 27, 2025

    Instead of just talking, I think there should be more direct actions! Build better drainage systems, for starters.

  15. RainOrShineRick June 27, 2025

    Thailand is wonderful in any weather. If you can’t handle a bit of rain, you’re missing out!

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