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Will Sim be damp (nồm)?

Estimated from the forecast: nồm when humidity is at least 90%, the dew point is within 2°C of the temperature and it is no warmer than 25°C.
📅 7 days · Sim

Heavy damp (nồm)

Nồm may start around 17/10, 20:00, lasting about 22 hours in total.
Humidity now
65%
Temperature
15°
Dew point
9°
Total nồm hours
22 hours

Nồm by day

  1. TodayDamp (nồm)4 nồm hours
  2. Sunday 18/10Heavy damp (nồm)15 nồm hours
  3. Monday 19/10Heavy damp (nồm)1 nồm hours
  4. Tuesday 20/10Damp (nồm)2 nồm hours
  5. Wednesday 21/10Dry0 nồm hours

Humidity, next 48 hours

Every 3 hours · nồm hours are highlighted

Full forecast
  1. 16:0065%
  2. 19:0085%
  3. 22:0098%
  4. 01:00100%
  5. 04:00100%
  6. 07:00100%
  7. 10:00100%
  8. 13:0083%
  9. 16:0075%
  10. 19:0081%
  11. 22:0090%
  12. 01:0089%
  13. 04:0084%
  14. 07:0082%
  15. 10:0071%
  16. 13:0062%

Beating the damp

  • Keep doors shutKeep windows and doors closed; open them only when dry wind returns (northerly, lower humidity).
  • DehumidifyRun a dehumidifier or the air conditioner's Dry mode; keep indoor humidity below 70%.
  • Keep floors dryWipe with a dry cloth and lay absorbent mats in walkways to avoid slipping.
  • Store clothes fully dryPut clothes away only when fully dry; keep desiccant packs in wardrobes.

Damp weather (nồm) FAQ

What is nồm and why do walls and floors “sweat”?

Nồm happens when warm, humid air arrives after a cold spell. Walls and floors are still cold, so moisture condenses on them — like water on the outside of an iced glass.

How does this page estimate nồm?

Nồm when humidity is at least 90%, the dew point is within 2°C of the temperature and it is no warmer than 25°C. Heavy nồm when the dew point exceeds the previous 24 hours' low, since surfaces are still cold and condensation is heavy.

When does nồm end?

Usually when a new northeast monsoon surge arrives or sunshine drops humidity below about 85%. The 7-day view shows which day it eases.

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