Press "Enter" to skip to content

Thailand Weather Alert: Heavy Rain Set to Drench 46 Provinces Including Bangkok

Order Cannabis Online Order Cannabis Online

Dust off those umbrellas and rubber boots, because it’s about to get wet! The Thai Meteorological Department (TMD) has put an alert out for a sweeping 46 provinces, with rainclouds promising to drench over 60% of the territory. And guess what? Bangkok, the city that never sleeps, isn’t dodging this soggy bullet either. As we step into another day on May 21st, everyone from city slickers to countryside folk are advised to gear up for impending downpours and the pesky gremlins they bring along—flash floods, anyone?

The TMD’s crystal ball—once again for those in the know, that’s the weather forecast—sees the southwest monsoon swirling over the Andaman Sea and Thailand’s western flank, fanning southeasterly and southern breezes across lower northern, northeastern, central, and eastern stretches of Thailand. This cocktail of meteorological mischief is set to baptize the land with heavy rains, especially in the more mountainous regions and low-lying areas prone to rivulets and torrents.

Out at sea, Mariners are not being spared either. Weak winds will keep waves relatively calm at about 1 meter in the Andaman Sea, with the Gulf of Thailand behaving even better, showing off its less than 1 metre composure. But with storms crashing the party, the seas could see tempests kick up waves to march beyond 2 meters high, prompting seafarers to tread carefully and maybe think twice about setting sail into the brawling squalls.

Fast forward to May 23 through to May 27, and Mother Nature turns up the intensity dial. Heavy to severe monsoons are forecasted, bathing certain regions under torrents of rain, courtesy of a strengthened southwest monsoon waltzing through the Andaman Sea, and touching down everywhere from Thailand’s green lawns to its bustling Gulf. Accompanying this drama is a perennial monsoon trough stretching over Thailand’s upper echelons down to its southern quarters. People living there are advised to stay alert to the looming prospects of instant floods and forest runoffs, particularly those in the shadow of the hills and valleys.

Travel plans involving thunderstorm-hit areas and flooding hotspots—a local feature in lowlands known for flash floods—should be reconsidered. Farmers, meanwhile, might want to cushion their crops and livestock from Mother Nature’s wrath, as they could bear the brunt of her unpredictable moods.

Turning to the local forecast, northern Thailand expects thunderstorms to dance through 60% of its domain, dropping copious rains over Chiang Mai, Lamphun, and ten other eager spectators. Expect the thermometer to oscillate between a comfy 23 to 26°C at dawn, dialing up to a toasty 33 to 37°C by noon, amid the whisper of southwesterly winds brushing at 5 to 15 km/h.

Meanwhile, northeastern Thailand forecasts an even higher chance—70%—of getting drenched, with heavy rains pounding towns like Loei and Nong Khai. As temperatures play footsie around 24 to 26°C, reaching 33 to 35°C max, southeasterly winds will sashaying along at 10 to 20 km/h.

Central Thailand joins the rain parade with 60% of the area under a thunderous spell, focusing its aqueous assault on Nakhon Sawan and another five provinces. As mercury levels ascend from 25 to 27°C to a balmy 35 to 37°C, the warm southern winds will zip across at 10 to 20 km/h.

In the east, expect a similar 60% coverage of thunderstorms, handing heavy rain tips to Nakhon Nayok and its droplet-loving neighbors. Temps will teeter from 25 to 28°C, maxing at 33 to 35°C, as southeasterlies at 10 to 30 km/h have their say. At sea, it’s wave heights around a meter, but watch closer—stormy spots could see volatile seas exceeding 2 meters.

As for southern Thailand, it divides its forecast between the eastern coast—where 60% likely means being drenched in regions like Surat Thani—and the western coast, where similar downpours greet locales like Phuket. Across these seafaring zones, the expectation is for mostly gentle waves, albeit storm conditions could amp this up by a few meters.

And then, there’s Bangkok, the city that’s all set for a soaking of its own. Expect 60% coverage with rainy bursts across this urban sprawl. Temperatures are trapped in a tug-of-war from 26 to 28°C to 34 to 36°C, as southern breezes take a leisurely 10 to 20 km/h pace.

While the skies above are busy staging their performance, the streets are echoing with tales—vehicle fires, dolphin dramas, and the occasional spicy tale of nudists making headlines in Pattaya. The vibrant rhythm of life in Thailand continues undeterred by the weather’s dramatic overtures, as the forecast stretches its arms wide, casting an aquatic spell over the land.

27 Comments

  1. Annie T. May 21, 2025

    I can’t believe how much rain we’ll be getting! Climate change is definitely making things worse.

    • Tommy T. May 21, 2025

      It rains every year. This has nothing to do with climate change.

      • Annie T. May 21, 2025

        Sure, but the intensity and frequency of such events are increasing, right?

      • Rita Reads May 21, 2025

        Actually, Annie is right. There is evidence that climate change affects weather patterns, including rain.

    • Ben May 21, 2025

      Climate change or not, we need to prepare better for these rains, especially in urban areas.

  2. PhuketFred May 21, 2025

    Surprised they didn’t mention anything about extra lifeboats for us in Phuket.

  3. SunnyDays42 May 21, 2025

    Glad I’m not living near the riverbanks, although I pity the fishermen most during these times.

  4. Larry D May 21, 2025

    People complain about the rains, but they are vital for agriculture. Farmers need it for their crops.

    • Chantima P. May 21, 2025

      Sure, but too much rain can destroy crops. Balance is key.

      • Larry D May 21, 2025

        True, that’s why better water management systems are needed.

  5. Maxine C. May 21, 2025

    It’s always entertaining how people lose their minds when it rains in Bangkok!

    • Jimbo May 21, 2025

      Haha, tell me about it! An inch of rain and the city comes to a halt.

  6. ChrisTheGeek May 21, 2025

    Does anyone else think this forecast is overly dramatic? Mankind has faced bigger storms.

  7. Grower134 May 21, 2025

    Downtown Bangkok is going to be a nightmare. Hope it’s bad enough that I can work from home!

  8. Sunita May 21, 2025

    This is why I always keep an emergency kit in my car during monsoon season.

    • CodyM May 21, 2025

      Smart move! Floods seem to catch people unprepared every year.

  9. Nok May 21, 2025

    Monsoon trough? Sounds like a giant monster from a B-movie.

  10. Liam H. May 21, 2025

    I wonder how this will affect tourism in Thailand. Surely, it’s not good news for beachgoers.

    • TravelJunkie May 21, 2025

      Tourists will still come. Rain or shine, Thailand is always on their radar.

      • Liam H. May 21, 2025

        That’s true, but I bet they’ll be spending more time indoors.

  11. Ella B. May 21, 2025

    I’m so glad I moved from Bangkok. Sounds like it’s going to be a wet mess over there!

  12. VoiceOfReason May 21, 2025

    People act like this is Armageddon. It’s just heavy rain, folks.

    • SaraLovesWeather May 21, 2025

      Until your street transforms into a river, that is.

  13. Sam May 21, 2025

    Bracing for the worst, but hoping for the best. Can’t let a bit of monsoon stop me!

  14. KittyC May 21, 2025

    I just washed my car, and now this! Classic Murphy’s Law, isn’t it?

  15. KM May 21, 2025

    No mention of how this affects electric infrastructure. Power outages could be a real issue.

  16. Ella B. May 21, 2025

    I’ve experienced so many power cuts during storms in the past. Not fun at all.

  17. Order Cannabis Online Order Cannabis Online

Leave a Reply to CodyM Cancel reply

Your email address will not be published. Required fields are marked *

More from ThailandMore posts in Thailand »