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Live readings · updated daily

Water temperature in Hawaii

The latest readings from USGS real-time water sensors across Hawaii, warmest first. Snapshot updated October 19, 2026.

Warmest sensor reading right now

75°F24°C

USGS gauge 3-2153-13 TAMC MW2, Oahu, HI · as of 4 days ago

All reporting stations (warmest 50 of 105)

StationWater tempStreamflowGage heightObserved
3-2153-13 TAMC MW2, Oahu, HIUSGS gauge75°F24°C——4 days ago
Kahakuloa Stream near Honokohau, Maui, HIUSGS gauge69°F20°C12 ft³/s0.64 ft19 hrs ago
Alakahi Stream near Kamuela, HIUSGS gauge—77 ft³/s3.78 ft19 hrs ago
Awini Puali Gulch US of Kohala Ditch, HIUSGS gauge—2 ft³/s31.43 ft19 hrs ago
EB of NF Wailua River nr Lihue, Kauai, HIUSGS gauge—38 ft³/s0.24 ft19 hrs ago
EF Kawela Gulch nr Kamalo, Molokai, HIUSGS gauge—1 ft³/s2.83 ft19 hrs ago
Haipuaena Stream abv Spreckels Ditch, Maui, HIUSGS gauge—47 ft³/s2.76 ft19 hrs ago
Hakalau Stream nr alt 1300 ft, HIUSGS gauge——19.74 ft19 hrs ago
Halaulani Str at alt 400 ft nr Kilauea, Kauai, HIUSGS gauge—4 ft³/s0.86 ft19 hrs ago
Halawa Stream near Halawa, Molokai, HIUSGS gauge—11 ft³/s2.02 ft19 hrs ago
Hanakapiai Stream abv Hanakapiai Falls, Kauai, HIUSGS gauge——1.64 ft19 hrs ago
Hanalei Riv at Hwy 56 Bridge nr Hanalei, Kauai, HIUSGS gauge——6.84 ft19 hrs ago
Hanalei River nr Hanalei, Kauai, HIUSGS gauge—173 ft³/s-0.04 ft19 hrs ago
Hanapepe Riv blw Manuahi Str nr Eleele, Kauai, HIUSGS gauge——1.66 ft19 hrs ago
Hanawi Stream near Nahiku, Maui, HIUSGS gauge—73 ft³/s2.23 ft19 hrs ago
Heeia Stream at Haiku Plantations Dr., Oahu, HIUSGS gauge—6 ft³/s2.63 ft19 hrs ago
Heeia Stream at Haiku Valley nr Kaneohe, Oahu, HIUSGS gauge—2 ft³/s1.17 ft19 hrs ago
Helemano 6 Reservoir, Oahu, HIUSGS gauge——22.83 ft19 hrs ago
Honokahua Stream at Honoapiilani Highway, Maui, HIUSGS gauge——-0.13 ft19 hrs ago
Honokohau Stream near Honokohau, Maui, HIUSGS gauge——2.85 ft19 hrs ago
Honolii Stream nr Papaikou, HIUSGS gauge—902 ft³/s6.32 ft19 hrs ago
Honomanu Stream near Keanae, Maui, HIUSGS gauge—69 ft³/s4.77 ft19 hrs ago
Honopou Stream near Huelo, Maui, HIUSGS gauge—18 ft³/s1.50 ft19 hrs ago
Honouliuli Str at H-1 Freeway nr Waipahu, Oahu, HIUSGS gauge—2 ft³/s5.21 ft19 hrs ago
Ka Loko Reservoir near Kilauea, Kauai, HIUSGS gauge——19.76 ft19 hrs ago
Kaelepulu Canal near mouth, Oahu, HIUSGS gauge——1.13 ft3 days ago
Kahaluu Str nr Ahuimanu, Oahu, HIUSGS gauge—4 ft³/s1.33 ft19 hrs ago
Kahana Str at alt 30 ft nr Kahana, Oahu, HIUSGS gauge—30 ft³/s4.65 ft19 hrs ago
Kahoma Stream at Lahaina, Maui, HIUSGS gauge—97 ft³/s1.35 ft19 hrs ago
Kalihi Str nr Honolulu, Oahu, HIUSGS gauge—4 ft³/s2.32 ft19 hrs ago
Kaluanui Stream nr Punaluu, Oahu, HIUSGS gauge—3 ft³/s3.85 ft19 hrs ago
Kamalo Gulch near Kamalo, Molokai, HIUSGS gauge——6.07 ft19 hrs ago
Kamananui Str at Maunawai, Oahu, HIUSGS gauge—11 ft³/s2.35 ft19 hrs ago
Kamananui Str at Pupukea Mil Rd, Oahu, HIUSGS gauge—8 ft³/s1.04 ft19 hrs ago
Kaneohe Str blw Kamehameha Hwy, Oahu, HIUSGS gauge—24 ft³/s16.01 ft19 hrs ago
Kauaula Stream US of ditch diversion, Maui, HIUSGS gauge—11 ft³/s4.71 ft19 hrs ago
Kaukonahua Str at Waialua, Oahu, HIUSGS gauge—32 ft³/s16.70 ft19 hrs ago
Kaukonahua Stream blw Wahiawa Reservoir, Oahu, HIUSGS gauge—32 ft³/s5.90 ft19 hrs ago
Kaunakakai Gulch at altitude 75 feet, Molokai, HIUSGS gauge—0 ft³/s4.90 ft19 hrs ago
Kaupuni Str at alt 374 ft nr Waianae, Oahu, HIUSGS gauge—16 ft³/s3.47 ft19 hrs ago
Kawa Str at Kaneohe, Oahu, HIUSGS gauge—1 ft³/s3.49 ft19 hrs ago
Kawaikoi Stream nr Waimea, Kauai, HIUSGS gauge—37 ft³/s2.82 ft19 hrs ago
Kawainui Marsh nr levee sta 15+00, Oahu, HIUSGS gauge——5.72 ft19 hrs ago
Kawainui Stream nr Kamuela, HIUSGS gauge—240 ft³/s3.89 ft19 hrs ago
Kawela Gulch near Moku, Molokai, HIUSGS gauge—1 ft³/s8.38 ft19 hrs ago
Kemoo 5 Reservoir, Oahu, HIUSGS gauge——14.60 ft20 hrs ago
Kohakohau Stream above intake, nr Kamuela, HIUSGS gauge—217 ft³/s3.97 ft19 hrs ago
Koolau Reservoir near Wahiawa, Oahu, HIUSGS gauge——6.34 ft19 hrs ago
Ku Tree Reservoir near Wahiawa, Oahu, HIUSGS gauge——17.19 ft19 hrs ago
Left Branch Opaekaa Str nr Kapaa, Kauai, HIUSGS gauge—3 ft³/s1.00 ft19 hrs ago

Station links open the official monitoring page with charts and history.

About these readings

Readings come from USGS real-time monitoring stations — 2 sensors are currently reporting a water temperature in Hawaii. Each figure is a point measurement at one sensor, usually on a river or stream — it doesn’t describe a whole lake or shoreline, and coverage varies across the state. Data is provisional and can be revised by the USGS.

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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.