Yeah, the charts are pretty accurate for that period. From May through October you're looking at mostly green to yellow AQI days, with the occasional spike if there's a fire somewhere upcountry or industrial activity kicks up. The rain really does wash everything out, and the wind patterns shift so the pollution from the north doesn't settle here like it does in the dry season.

One thing the sensors won't show is mold and dust issues indoors during the rainy season. If you're in an older building or a place without good AC maintenance, you might notice more mustiness or dust mites in the air, which can bother sensitive people even if the outdoor AQI is fine. I'd recommend a dehumidifier and a good HEPA filter for your room, not just for PM2.5 but for general air quality.

Sukhumvit and Silom can get pretty bad traffic-wise in the rain, but the air itself stays clean because the rain keeps the dust and exhaust grounded. Just avoid living right next to a major intersection or construction site, same as any time of year.

arrow_drop_up 5 arrow_drop_down

chat_bubble Reply ios_share

/

Reply

The charts are reliable for outdoor readings, but there's a specific thing that happens in July and August that doesn't show up. Sometimes the rain doesn't come for a few days straight, and the humidity traps everything close to the ground. You'll get that sticky layer of haze that smells like wet concrete and exhaust, even though the AQI meter says 60-70. It's not a PM2.5 problem, it's more like a general particulate and VOC soup that settles in the low-pressure zones around the river.

If you're sensitive to air, check if your place has a working exhaust fan in the bathroom and kitchen. A lot of condos in Asok and Thong Lo have those old central ventilation shafts that just pull moldy air from the neighbor's unit into yours during the rainy season. A standalone air purifier with a carbon filter will handle that better than the standard HEPA ones, because it's more about smells and VOCs than smoke.

arrow_drop_up 1 arrow_drop_down

chat_bubble Reply ios_share

/

Reply

oh for christs sake another air quality thread. look the charts are fine but you're missing the real problem which is the sudden thunderstorms. they dump so much water so fast that the humidity hits 99% and your AC becomes a swamp cooler. that's where the trouble starts. not the pm

arrow_drop_up -2 arrow_drop_down

chat_bubble Reply ios_share

/

Reply

yeah Krua Dok Mai Kao is solid but if you're up for a detour, try Som Tum Nua near Siam Square. their som tam pu pla ra is insane if you like the fermented fish sauce kick. way more pungent than the On Nut spot, just less grilled chicken options

arrow_drop_up 18 arrow_drop_down

chat_bubble Reply ios_share

/

Reply