Cost to Run a Dehumidifier in Hawaii
Hawaii's average residential electricity rate is 46.6¢/kWh as of April 2026 — the 51st cheapest in the country, 148% above the U.S. average. At typical usage (10 hours/day), a dehumidifier here costs $70.83 per month.
Per hour
$0.23
at 300–700 W
Per day
$2.33
10 hours/day
Per month
$70.83
152 kWh
Per year
$850
1,825 kWh
By usage level in Hawaii
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | $1.17 | $35.42 | $425 |
| Typical (10 hrs/day) | $2.33 | $70.83 | $850 |
| Heavy (20 hrs/day) | $4.66 | $142 | $1,701 |
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 46.6¢/kWh (April 2026), a dehumidifier with typical usage costs about $2.33 per day, $70.83 per month, or $850 per year.
Is running a dehumidifier in Hawaii more expensive than average?
Yes. Hawaii's electricity costs about 148% more than the U.S. average, so the same usage costs $70.83 per month here versus $28.58 nationally.
What does electricity cost in Hawaii right now?
Hawaii residents pay an average of 46.6¢ per kWh as of April 2026 — the 51st cheapest rate of the 51 U.S. jurisdictions we track.