Oahu & Kauai water temperature today
Across 5 reporting buoys, the water ranges from 78°F at Hanalei, Kauai, HI to 82°F at Barbers Point, Kalaeloa, HI.
Latest readings from the 5 NOAA buoys off Oahu & Kauai: water temperature, wind and waves. Sorted with the long-running offshore buoys first.
| Buoy | Water | Wind | Waves | Reading |
|---|---|---|---|---|
| Waimea Bay, HINDBC 51201 · 21.67°N 158.12°W | 80°F 27°C | – | 7 ft @ 11s | Oct 17, 13:56 UTC |
| Mokapu Point, HINDBC 51202 · 21.41°N 157.68°W | 81°F 27°C | – | 8 ft @ 7s | Oct 17, 13:56 UTC |
| Hanalei, Kauai, HINDBC 51208 · 22.29°N 159.57°W | 78°F 26°C | – | 9 ft @ 10s | Sep 9, 11:56 UTC |
| Pearl Harbor Entrance, HINDBC 51211 · 21.30°N 157.96°W | 80°F 27°C | – | 3 ft @ 14s | Oct 17, 14:00 UTC |
| Barbers Point, Kalaeloa, HINDBC 51212 · 21.32°N 158.15°W | 82°F 28°C | – | 4 ft @ 15s | Oct 17, 13:00 UTC |
See where the warm and cold water actually sits between these buoys, and where the temperature breaks and color changes are, on the satellite chart for Oahu & Kauai.
FAQ
Where does this water temperature come from?
From NOAA's National Data Buoy Center (NDBC). Each buoy measures the water temperature near the surface, usually about a meter down, and reports roughly every hour. We pull the latest reading for every buoy off Oahu & Kauai.
How often does this page update?
Every time you load it. Readings come straight from NOAA and are at most about 30 minutes behind what NOAA has published.
Why is the buoy temperature different from the satellite chart?
A buoy measures one spot a meter or so below the surface. A satellite measures the skin of the water over a wide area. On calm, sunny afternoons the skin can read warmer than the water below it. More in our guide to ground-truthing SST with buoys.
Related: How to use buoy data to ground-truth satellite SST · Ideal water temperatures for pelagic fish