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Will Atsimo-Andrefana 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 · Atsimo-Andrefana

Heavy damp (nồm)

Nồm may start around 28/10, 01:00, lasting about 20 hours in total.
Humidity now
57%
Temperature
24°
Dew point
15°
Total nồm hours
20 hours

Nồm by day

  1. TodayHumid0 nồm hours
  2. Tuesday 27/10Humid0 nồm hours
  3. Wednesday 28/10Heavy damp (nồm)7 nồm hours
  4. Thursday 29/10Damp (nồm)13 nồm hours
  5. Friday 30/10Humid0 nồm hours
  6. Saturday 31/10Dry0 nồm hours
  7. Sunday 01/11Dry0 nồm hours

Humidity, next 48 hours

Every 3 hours · nồm hours are highlighted

Full forecast
  1. 01:0057%
  2. 04:0061%
  3. 07:0051%
  4. 10:0039%
  5. 13:0049%
  6. 16:0064%
  7. 19:0076%
  8. 22:0085%
  9. 01:0089%
  10. 04:0080%
  11. 07:0055%
  12. 10:0062%
  13. 13:0064%
  14. 16:0072%
  15. 19:0085%
  16. 22:0088%

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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