All data are in degrees Fahrenheit

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Water temperature in Hilo

Detailed information about the current water temperature in Hilo. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Hilo now

77.2

°F

April 30, 02:43

Trend:

increasing

Yesterday:

77.2°F

Tomorrow:

77.2°F

Sunrise:

05:52

Sunset:

18:43

Day Length:

12 h. 51 min.

Hilo in May

Minimum:

76.1°F

Average:

77.1°F

Maximum:

78.6°F

Sea water temperature in Hilo today

As of now, in Hilo, the water temperature is 77.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.4°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature slightly varies from the average of the past two weeks. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 78.1°F on 2017, while the historical minimum was 75.9°F on 2024.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 77.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Hilo

Date Current Year

actual* / forecast**

last year 10 years average
Apr 16 77.6°F 75.2°F 76.3°F
Apr 17 77.5°F 75.7°F 76.5°F
Apr 18 77.5°F 75.7°F 76.5°F
Apr 19 77.5°F 76.0°F 76.6°F
Apr 20 77.6°F 75.8°F 76.6°F
Apr 21 77.4°F 75.5°F 76.5°F
Apr 22 77.6°F 75.4°F 76.6°F
Apr 23 77.2°F 75.8°F 76.6°F
Apr 24 77.0°F 76.0°F 76.7°F
Apr 25 76.9°F 76.2°F 76.6°F
Apr 26 76.9°F 76.3°F 76.7°F
Apr 27 77.1°F 76.1°F 76.7°F
Apr 28 77.1°F 76.0°F 76.8°F
Apr 29 77.2°F 75.8°F 76.7°F
Apr 30 77.2°F 75.9°F 76.7°F
May 1 77.2°F 75.9°F 76.8°F
May 2 77.2°F 75.7°F 76.8°F
May 3 77.3°F 76.0°F 76.8°F
May 4 77.4°F 75.6°F 76.9°F
May 5 77.3°F 75.4°F 76.8°F
May 6 77.2°F 75.2°F 76.8°F
May 7 77.3°F 75.3°F 76.9°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Hilo by month

In Hilo, the water temperature is comfortable for swimming all year round.
The warmest water in Hilo was recorded on September 9, 2015, reaching a 83.9°F. While the coldest temperature occurred on March 14, 2018, dipping to 74.0°F. The average readings by season are 76.8°F in Winter, 76.6°F in Spring, 79.3°F in Summer, and 80.1°F in Autumn.