Hawaii drought

Is Hawaii County in a drought?

D0 Abnormally dry

No. Hawaii County is not in drought on the Drought Monitor map of Sep 29, 2026, but 20.7% of it is abnormally dry (D0), the category before drought.

Map valid Sep 29, 2026, released Thursday, Oct 1, 2026. The next map is due Thursday, Oct 8, 2026. Statewide, 0% of Hawaii is in drought.

Hawaii County forecastWeather alertsLive radar here

This week’s map

The Drought Monitor for Hawaii, valid Sep 29, 2026. County lines are drawn in; the categories are the same as the national map.

US Drought Monitor map of Hawaii for Sep 29, 2026, shaded D0 abnormally dry through D4 exceptional drought
  • D0 Abnormally dry
  • D1 Moderate drought
  • D2 Severe drought
  • D3 Extreme drought
  • D4 Exceptional drought

Open the live map with the Drought Monitor

Map courtesy of the US Drought Monitor, NDMC-UNL, with USDA and NOAA. Original at droughtmonitor.unl.edu

This week's map, by category

Percent of Hawaii County in each category or worse, the Drought Monitor's own way of counting. In exactly one category this week: D0 20.7%, D1 0%, D2 0%, D3 0%, D4 0%; none 79.3%.

CategoryThis weekSep 29Last weekSep 223 months agoJun 30A year agoSep 30
D0 to D4 Abnormally dry or worse20.7%20.7%22.7%100%
D1 to D4 Moderate or worse0%0%0%75.6%
D2 to D4 Severe or worse0%0%0%30.2%
D3 to D4 Extreme or worse0%0%0%7.6%
D4 Exceptional drought0%0%0%0%
None79.3%79.3%77.3%0%

The past year

Percent of Hawaii County in each category, week by week. Each color includes the worse categories drawn over it.

Percent of Hawaii County in drought categories from Sep 30, 2025 to Sep 29, 2026. On the latest map, 0% is in drought (D1 or worse) and 20.7% is abnormally dry or worse.0%25%50%75%100%OctNovDec2026FebMarAprMayJunJulAugSep
  • D0 Abnormally dry
  • D1 Moderate drought
  • D2 Severe drought
  • D3 Extreme drought
  • D4 Exceptional drought
Every week in the chart
MapD0+D1+D2+D3+D4+
Sep 29, 202620.7%0%0%0%0%
Sep 22, 202620.7%0%0%0%0%
Sep 15, 202620.7%0%0%0%0%
Sep 8, 202620.7%0%0%0%0%
Sep 1, 202620.7%0%0%0%0%
Aug 25, 202620.7%0%0%0%0%
Aug 18, 202620.7%0%0%0%0%
Aug 11, 202647%0%0%0%0%
Aug 4, 202638.9%0%0%0%0%
Jul 28, 202638.9%0%0%0%0%
Jul 21, 202638.9%0%0%0%0%
Jul 14, 202638.9%0%0%0%0%
Jul 7, 202622.7%0%0%0%0%
Jun 30, 202622.7%0%0%0%0%
Jun 23, 202622.7%0%0%0%0%
Jun 16, 202622.7%0%0%0%0%
Jun 9, 202622.7%0%0%0%0%
Jun 2, 202622.7%0%0%0%0%
May 26, 202622.7%0%0%0%0%
May 19, 202622.7%0%0%0%0%
May 12, 202627.7%0%0%0%0%
May 5, 202627.7%0%0%0%0%
Apr 28, 202629.8%5.4%0%0%0%
Apr 21, 202637.2%9.6%0%0%0%
Apr 14, 202637.2%9.6%0%0%0%
Apr 7, 202642.6%9.6%0%0%0%
Mar 31, 202663.9%10.8%3.6%0%0%
Mar 24, 202663.9%10.8%3.6%0%0%
Mar 17, 202663.9%10.8%3.6%1.3%0%
Mar 10, 202698.2%63.9%11.6%1.7%0%
Mar 3, 202698.2%63.9%11.6%1.7%0%
Feb 24, 202698.2%63.9%11.6%1.7%0%
Feb 17, 202698.2%63.9%11.6%1.7%0%
Feb 10, 2026100%67.1%15.1%2.8%0%
Feb 3, 2026100%78.1%21.4%3.9%0%
Jan 27, 2026100%78.1%21.4%3.9%0%
Jan 20, 2026100%78.1%20.8%3.9%0%
Jan 13, 2026100%78.1%20.8%3.9%0%
Jan 6, 2026100%81.8%23.6%3.9%0%
Dec 30, 2025100%81.8%27.3%6.1%0%
Dec 23, 2025100%81.8%27.3%6.1%0%
Dec 16, 2025100%81.8%27.3%6.1%0%
Dec 9, 2025100%81.8%27.3%6.1%0%
Dec 2, 2025100%81.8%27.3%6.1%0%
Nov 25, 2025100%75.6%23.2%6.1%0%
Nov 18, 2025100%75.6%23.2%6.1%0%
Nov 11, 2025100%75.6%31.7%7.6%0%
Nov 4, 2025100%75.6%36%7.6%0%
Oct 28, 2025100%75.6%36%7.6%0%
Oct 21, 2025100%75.6%30.2%7.6%0%
Oct 14, 2025100%75.6%30.2%7.6%0%
Oct 7, 2025100%75.6%30.2%7.6%0%
Sep 30, 2025100%75.6%30.2%7.6%0%

Since 2000

Every weekly map of Hawaii County since January 2000.

Percent of Hawaii County in drought categories from Jan 4, 2000 to Sep 29, 2026. On the latest map, 0% is in drought (D1 or worse) and 20.7% is abnormally dry or worse.0%25%50%75%100%200420082012201620202024
  • D0 Abnormally dry
  • D1 Moderate drought
  • D2 Severe drought
  • D3 Extreme drought
  • D4 Exceptional drought
Year by year
YearWorst categoryMost in droughtWeek ofWeeks with drought
2026D3 Extreme drought81.8%Jan 617 of 39
2025D3 Extreme drought100%Jan 752 of 52
2024D3 Extreme drought89.5%Oct 2247 of 53
2023D3 Extreme drought100%Oct 1034 of 52
2022D4 Exceptional drought100%Feb 148 of 52
2021D3 Extreme drought60.2%Jul 2048 of 52
2020D3 Extreme drought74.6%Nov 1049 of 52
2019D3 Extreme drought97%Feb 1249 of 53
2018D2 Severe drought45.6%Sep 421 of 52
2017D3 Extreme drought91.6%Jul 450 of 52
2016D3 Extreme drought97.5%Mar 842 of 52
2015D1 Moderate drought72.2%Mar 336 of 52
2014D3 Extreme drought47.6%Jan 713 of 52
2013D3 Extreme drought84.6%Oct 2253 of 53
2012D3 Extreme drought89.7%Dec 452 of 52
2011D3 Extreme drought93.6%Mar 152 of 52
2010D4 Exceptional drought100%Feb 252 of 52
2009D3 Extreme drought92.6%Jun 952 of 52
2008D3 Extreme drought93%Jul 1532 of 53
2007D2 Severe drought100%Jun 1229 of 52
2006D0 Abnormally dry0%0 of 52
2005D1 Moderate drought100%May 244 of 52
2004D1 Moderate drought59.9%Oct 53 of 52
2003D2 Severe drought100%Apr 852 of 52
2002D0 Abnormally dry0%0 of 53
2001D2 Severe drought100%Jan 1648 of 52
2000D3 Extreme drought79.6%Jul 2549 of 52

Drought history since 2000

Some part of Hawaii County was in drought on 70% of the weekly maps since Jan 4, 2000, and exceptional drought (D4) last reached the county the week of May 31, 2022.

Weeks with some drought
984 of 1,396 (70%)
Worst category reached
D4 Exceptional drought, last the week of May 31, 2022
Most widespread
100% in drought, week of Jun 3, 2025
Longest spell
306 weeks, May 27, 2008 to Apr 1, 2014
Last in drought
Week of Apr 28, 2026

Outlook

The Climate Prediction Center's drought outlooks at the center of Hawaii County: whether drought is expected to develop, persist, improve or end.

Monthly outlook, Oct 2026
No drought expected
Seasonal outlook, through December 31 (issued Sep 30)
No drought expected

The monthly outlook is issued on the last day of each month, the seasonal one on the third Thursday. CPC's discussion.

What drought has meant in Hawaii

The National Drought Mitigation Center's examples of impacts observed in Hawaii at each level of drought, starting with this week's worst here.

D0 Abnormally dry This week

  • Corn quality declines; less water is available for irrigation
  • Hiking trails are noticeably dry with soil erosion

D1 Moderate drought

  • Concerns about fire danger increase
  • More bugs observed than normal
  • Pasture and crop growth is stunted; farmers are not allowed to use reservoir water for irrigation
  • Water levels decline; voluntary water restrictions are issued; reservoir levels are depleted in high elevations

D2 Severe drought

  • Fire danger is high
  • Pasture conditions are very dry/poor; cattle health is poor; protea, coffee bean, sugar cane crops struggle
  • Reservoir levels are low; springs are dried up; mandatory water restrictions are implemented

D3 Extreme drought

  • Fires spread rapidly; outdoor burn bans are implemented
  • Producers cull cattle, buy supplements and haul water for livestock
  • Sugar cane producer lays off many employees
  • Trees are dry and dropping leaves; feral donkeys move into populated areas
  • Water production is reduced

D4 Exceptional drought

  • Cattle die; cattle conception rates are reduced
  • Hunting areas and hiking trails may be closed due to increased fire danger
  • Specialty crops, orchards are dying
  • Surface water is severely impacted
  • Tree beetle populations decline

Drawn from the Drought Impact Reporter and local observers.

Burn bans and water restrictions

The Drought Monitor does not issue burn bans or water restrictions. Hawaii County's officials, the state forestry or fire agency, and local water utilities set them, often once drought reaches D2 or dry fuels raise the fire danger. Check the county's emergency management office or fire marshal for a ban in force, and the alerts page for red flag warnings and fire weather watches.

This week in the Pacific

The Drought Monitor authors' narrative for the map of Sep 29, 2026, released Oct 1, 2026.

The interior Tanana Valley of east-central Alaska has been abnormally dry over the past several months, leading to the issuance of a moderate drought category there. In the Southeastern Alaskan Panhandle, the normal wet season for this time of year has begun, but given the prevailing wet climate regime, much more precipitation needs to fall to completely erase the prolonged dryness and moderate drought of this summer.

Hawaii was impacted by yet another Hurricane (Nolo) this past week, bringing prolific rainfall particularly to the Big Island. However, since most of the heavy rain fell on the favorable east-facing windward side of the Big Island, the abnormal dryness was allowed to remain in this week’s drought map along the rain shadow of the west coast.

Tropical Depression 26W was east of the Mariana Islands and moving westward. To the south, a monsoon surge was developing across central Federated States of Micronesia and southeast of Guam.

The Republic of Palau was at D1 and received 1.46 inches of precipitation at Palau IAP. No precipitation was reported for Koror. Month-to-date precipitation for Palau IAP on the last day of September was 4.18 inches, less than a third of normal precipitation for the month. These islands need 2 inches of rain per week to meet minimum water needs.

The Mariana Islands received more than an inch for the week, except for one Saipan location. One inch is the weekly amount these islands need to meet minimum water needs. Guam reported 1.52 inches, Rota got 1.76 inches, and Saipan IAP collected 2.31 inches.

The Federated States of Micronesia were mixed for the week. Kapingamarangi remains at D1 and received a mere 0.02 inches of rain. Precipitation was also low for Kosrae, Lukunor and Nukuoro. Chuuk, Pohnpei, Ulithi, Woleai and Yap all received more than 3 inches.

Some of the Marshall Islands received ample precipitation, while other islands did not. Utirik reportedly received 3.22 inches of precipitation, so the D0 label was removed. Locations with less than 2 inches of rain included Majuro with 1.5 inches and Mili with 0.58 inches. Ailinglaplap, Jaluit, Kwajalein and Wotje all collected more than 2 inches of rain, which is the amount to cover minimum water needs.

American Samoa remained at D0 as rainfall had been below normal, but precipitation has improved in recent weeks. Pago Pago received 0.94 inches of rain, while Siufaga Ridge and Toa Ridge received 4.48 and 2.22 inches, respectively. These islands require 2 inches of rain per week to meet minimum water needs.

Looking ahead

Ongoing substantial rain was falling Tuesday morning at the onset of the new U.S. Drought Monitor week, from Arizona and New Mexico into the Central and High Plains. This excessive rainy system connected to Hurricane Polo is projected to continue eastward this week into the High Plains, Midwest, and South regions. The Weather Prediction Center has moderate threats for excessive rainfall from the Southwest into Texas, Oklahoma, northward into Nebraska and Iowa. Drought-busting rains may be possible across the South as this weather system evolves this week. Looking into the next week, the Climate Prediction Center’s 6–10-day outlook indicates that well-above average temperatures will shift into the western states, along with below normal precipitation chances. Meanwhile, above average precipitation chances are projected from southern Texas into the southeastern states, including Florida. Above average precipitation chances are also projected for southeastern Alaska, with near neutral rainfall forecasts for Hawaii.

Written by Denise Gutzmer, National Drought Mitigation Center; Jonathan Case, NASA/MSFC, UAH. The national narrative.

What this means

The five categories the Drought Monitor draws, and how the map is made.

D0 Abnormally dry
Going into or coming out of drought.
D1 Moderate drought
Some damage to crops and pastures; water shortages developing.
D2 Severe drought
Crop or pasture losses likely; water restrictions imposed.
D3 Extreme drought
Major crop and pasture losses; widespread water shortages.
D4 Exceptional drought
Exceptional and widespread losses; water emergencies.

The US Drought Monitor is drawn every week by authors at the National Drought Mitigation Center, USDA and NOAA, who weigh rainfall, soil moisture, streamflow, groundwater, vegetation health and reports from local observers. Each map shows conditions through Tuesday morning and is released on Thursday. It shows where drought is and how bad it is; it does not forecast it. CPC's outlooks do that.

Sources

Statistics and narrative from the US Drought Monitor, courtesy of the National Drought Mitigation Center at the University of Nebraska-Lincoln, with USDA and NOAA. Outlooks from the NOAA Climate Prediction Center. Impacts from NDMC's State Impacts tool.