Cost to Run a Dehumidifier in Hawaii
Hawaii's average residential electricity rate is 52¢/kWh as of May 2026 — the 51st cheapest in the country, 183% above the U.S. average. At typical usage (10 hours/day), a dehumidifier here costs $79.04 per month.
Per hour
$0.26
at 300–700 W
Per day
$2.60
10 hours/day
Per month
$79.04
152 kWh
Per year
$949
1,825 kWh
By usage level in Hawaii
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | $1.30 | $39.52 | $475 |
| Typical (10 hrs/day) | $2.60 | $79.04 | $949 |
| Heavy (20 hrs/day) | $5.20 | $158 | $1,898 |
Hawaii vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a dehumidifier in Hawaii?
At Hawaii's current average residential rate of 52¢/kWh (May 2026), a dehumidifier with typical usage costs about $2.60 per day, $79.04 per month, or $949 per year.
Is running a dehumidifier in Hawaii more expensive than average?
Yes. Hawaii's electricity costs about 183% more than the U.S. average, so the same usage costs $79.04 per month here versus $27.97 nationally.
What does electricity cost in Hawaii right now?
Hawaii residents pay an average of 52¢ per kWh as of May 2026 — the 51st cheapest rate of the 51 U.S. jurisdictions we track.