Kauaʻi weather

Weather can be dramatically different around the island.

Compare the areas you’re considering before heading out. Each forecast comes from that location’s own National Weather Service point and is never substituted from another region.

Weather around Kauaʻi

Conditions can be very different around the island.

Full Kauaʻi weather →

Hanalei

North Shore

85°F

Current forecast period

Mostly Sunny

High 85°F · Low 73°F

Rain 13%

E 10 mph

Kapaʻa

East Side

85°F

Current forecast period

Sunny

High 85°F · Low 73°F

Rain 11%

E 9 mph

Līhuʻe

85°F

Current forecast period

Mostly Sunny

High 85°F · Low 74°F

Rain 13%

ENE 9 mph

Poʻipū

Kōloa / Poʻipū

85°F

Current forecast period

Sunny

High 85°F · Low 79°F

Rain 10%

ENE 12 mph

Waimea

91°F

Current forecast period

Mostly Sunny

High 91°F · Low 74°F

Rain 8%

ESE 6 mph

Seven days by region

High and low values are shown only when NWS publishes the matching daytime and nighttime periods. Rain chances remain separate.

Region

Sat, Sep 12

Sun, Sep 13

Mon, Sep 14

Tue, Sep 15

Wed, Sep 16

Thu, Sep 17

Fri, Sep 18

Hanalei

Mostly Sunny

85°F / 73°F

Day 13% · Night 10%

Mostly Sunny then Isolated Rain Showers

85°F / 73°F

Day 20% · Night 23%

Scattered Rain Showers

85°F / 73°F

Day 26% · Night 41%

Scattered Rain Showers

86°F / 75°F

Day 45% · Night 38%

Scattered Rain Showers

86°F / 76°F

Day 41% · Night 70%

Rain Showers Likely

86°F / 75°F

Day 70% · Night 59%

Scattered Rain Showers

86°F / 75°F

Day 53% · Night 26%

Kapaʻa

Sunny

85°F / 73°F

Day 11% · Night 13%

Mostly Sunny then Isolated Rain Showers

85°F / 73°F

Day 15% · Night 18%

Isolated Rain Showers

85°F / 74°F

Day 23% · Night 36%

Scattered Rain Showers

86°F / 75°F

Day 39% · Night 28%

Scattered Rain Showers

86°F / 76°F

Day 42% · Night 70%

Rain Showers Likely

86°F / 76°F

Day 70% · Night 59%

Rain Showers Likely

86°F / 76°F

Day 55% · Night 27%

Līhuʻe

Mostly Sunny

85°F / 74°F

Day 13% · Night 15%

Isolated Rain Showers then Mostly Sunny

85°F / 74°F

Day 17% · Night 20%

Isolated Rain Showers

86°F / 75°F

Day 17% · Night 32%

Scattered Rain Showers

86°F / 76°F

Day 33% · Night 31%

Scattered Rain Showers

87°F / 77°F

Day 42% · Night 70%

Rain Showers Likely

86°F / 75°F

Day 70% · Night 59%

Scattered Rain Showers

86°F / 75°F

Day 53% · Night 29%

Poʻipū

Sunny

85°F / 79°F

Day 10% · Night 10%

Sunny

85°F / 79°F

Day 13% · Night 14%

Mostly Sunny then Isolated Rain Showers

85°F / 80°F

Day 20% · Night 24%

Isolated Rain Showers then Mostly Sunny

86°F / 82°F

Day 18% · Night 22%

Scattered Rain Showers

87°F / 82°F

Day 27% · Night 70%

Rain Showers Likely

86°F / 76°F

Day 70% · Night 53%

Scattered Rain Showers

86°F / 76°F

Day 43% · Night 24%

Waimea

Mostly Sunny

91°F / 74°F

Day 8% · Night 8%

Sunny

90°F / 74°F

Day 12% · Night 11%

Sunny

91°F / 74°F

Day 11% · Night 17%

Sunny

92°F / 77°F

Day 9% · Night 12%

Mostly Sunny then Isolated Rain Showers

93°F / 78°F

Day 20% · Night 58%

Rain Showers Likely

93°F / 76°F

Day 59% · Night 45%

Scattered Rain Showers

93°F / 76°F

Day 32% · Night 18%

Forecast details

All five visitor regions

Hanalei / North Shore

Mostly Sunny

Current forecast period

85°F

High 85°F · Low 73°F · Rain 13% · Wind E 10 mph

Mostly sunny, with a high near 85. East wind around 10 mph.

Sat, Sep 12

Mostly Sunny

High 85°F · Low 73°F

Day 13% · Night 10%

Sun, Sep 13

Mostly Sunny then Isolated Rain Showers

High 85°F · Low 73°F

Day 20% · Night 23%

Mon, Sep 14

Scattered Rain Showers

High 85°F · Low 73°F

Day 26% · Night 41%

Tue, Sep 15

Scattered Rain Showers

High 86°F · Low 75°F

Day 45% · Night 38%

Wed, Sep 16

Scattered Rain Showers

High 86°F · Low 76°F

Day 41% · Night 70%

Thu, Sep 17

Rain Showers Likely

High 86°F · Low 75°F

Day 70% · Night 59%

Fri, Sep 18

Scattered Rain Showers

High 86°F · Low 75°F

Day 53% · Night 26%

Source: National Weather Service · Hanalei / North Shore

Forecast issued: Sep 12, 2026, 6:02 AM HST

Retrieved by Kauaʻi Insider: Sep 12, 2026, 1:32 PM HST

Official NWS forecast ↗

Kapaʻa / East Side

Sunny

Current forecast period

85°F

High 85°F · Low 73°F · Rain 11% · Wind E 9 mph

Sunny, with a high near 85. East wind around 9 mph.

Sat, Sep 12

Sunny

High 85°F · Low 73°F

Day 11% · Night 13%

Sun, Sep 13

Mostly Sunny then Isolated Rain Showers

High 85°F · Low 73°F

Day 15% · Night 18%

Mon, Sep 14

Isolated Rain Showers

High 85°F · Low 74°F

Day 23% · Night 36%

Tue, Sep 15

Scattered Rain Showers

High 86°F · Low 75°F

Day 39% · Night 28%

Wed, Sep 16

Scattered Rain Showers

High 86°F · Low 76°F

Day 42% · Night 70%

Thu, Sep 17

Rain Showers Likely

High 86°F · Low 76°F

Day 70% · Night 59%

Fri, Sep 18

Rain Showers Likely

High 86°F · Low 76°F

Day 55% · Night 27%

Source: National Weather Service · Kapaʻa / East Side

Forecast issued: Sep 12, 2026, 6:02 AM HST

Retrieved by Kauaʻi Insider: Sep 12, 2026, 1:32 PM HST

Official NWS forecast ↗

Līhuʻe

Mostly Sunny

Current forecast period

85°F

High 85°F · Low 74°F · Rain 13% · Wind ENE 9 mph

Mostly sunny, with a high near 85. East northeast wind around 9 mph.

Sat, Sep 12

Mostly Sunny

High 85°F · Low 74°F

Day 13% · Night 15%

Sun, Sep 13

Isolated Rain Showers then Mostly Sunny

High 85°F · Low 74°F

Day 17% · Night 20%

Mon, Sep 14

Isolated Rain Showers

High 86°F · Low 75°F

Day 17% · Night 32%

Tue, Sep 15

Scattered Rain Showers

High 86°F · Low 76°F

Day 33% · Night 31%

Wed, Sep 16

Scattered Rain Showers

High 87°F · Low 77°F

Day 42% · Night 70%

Thu, Sep 17

Rain Showers Likely

High 86°F · Low 75°F

Day 70% · Night 59%

Fri, Sep 18

Scattered Rain Showers

High 86°F · Low 75°F

Day 53% · Night 29%

Source: National Weather Service · Līhuʻe

Forecast issued: Sep 12, 2026, 6:02 AM HST

Retrieved by Kauaʻi Insider: Sep 12, 2026, 1:32 PM HST

Official NWS forecast ↗

Kōloa / Poʻipū

Sunny

Current forecast period

85°F

High 85°F · Low 79°F · Rain 10% · Wind ENE 12 mph

Sunny, with a high near 85. East northeast wind around 12 mph.

Sat, Sep 12

Sunny

High 85°F · Low 79°F

Day 10% · Night 10%

Sun, Sep 13

Sunny

High 85°F · Low 79°F

Day 13% · Night 14%

Mon, Sep 14

Mostly Sunny then Isolated Rain Showers

High 85°F · Low 80°F

Day 20% · Night 24%

Tue, Sep 15

Isolated Rain Showers then Mostly Sunny

High 86°F · Low 82°F

Day 18% · Night 22%

Wed, Sep 16

Scattered Rain Showers

High 87°F · Low 82°F

Day 27% · Night 70%

Thu, Sep 17

Rain Showers Likely

High 86°F · Low 76°F

Day 70% · Night 53%

Fri, Sep 18

Scattered Rain Showers

High 86°F · Low 76°F

Day 43% · Night 24%

Source: National Weather Service · Kōloa / Poʻipū

Forecast issued: Sep 12, 2026, 6:02 AM HST

Retrieved by Kauaʻi Insider: Sep 12, 2026, 1:32 PM HST

Official NWS forecast ↗

Waimea

Mostly Sunny

Current forecast period

91°F

High 91°F · Low 74°F · Rain 8% · Wind ESE 6 mph

Mostly sunny. High near 91, with temperatures falling to around 85 in the afternoon. Heat index values as high as 96. East southeast wind around 6 mph.

Sat, Sep 12

Mostly Sunny

High 91°F · Low 74°F

Day 8% · Night 8%

Sun, Sep 13

Sunny

High 90°F · Low 74°F

Day 12% · Night 11%

Mon, Sep 14

Sunny

High 91°F · Low 74°F

Day 11% · Night 17%

Tue, Sep 15

Sunny

High 92°F · Low 77°F

Day 9% · Night 12%

Wed, Sep 16

Mostly Sunny then Isolated Rain Showers

High 93°F · Low 78°F

Day 20% · Night 58%

Thu, Sep 17

Rain Showers Likely

High 93°F · Low 76°F

Day 59% · Night 45%

Fri, Sep 18

Scattered Rain Showers

High 93°F · Low 76°F

Day 32% · Night 18%

Source: National Weather Service · Waimea

Forecast issued: Sep 12, 2026, 6:02 AM HST

Retrieved by Kauaʻi Insider: Sep 12, 2026, 1:32 PM HST

Official NWS forecast ↗