What is the current water temperature in Eureka?

Q: What is the current water temperature in Eureka?

As of now, in Eureka, the water temperature is 9.76°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

United States > Eureka

Water temperature in Eureka

Detailed information about the current water temperature in Eureka. 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.

49.6

°F

January 21, 16:27

Trend:

stable

Yesterday:

50.1°F

Tomorrow:

49.6°F

Sunrise:

07:36

Sunset:

17:21

Day Length:

9 h. 45 min.

Eureka in January

Minimum:

50.4°F

Average:

52.5°F

Maximum:

56.2°F

Sea water temperature in Eureka today

As of now, in Eureka, the water temperature is 49.6°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.8°F lower 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 is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 54.7°F on 2015, while the historical minimum was 50.9°F on 2021.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 49.6°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Eureka

Date	Current Year actual* / forecast**	last year	10 years average
Jan 7	53.2°F	54.3°F	52.4°F
Jan 8	53.4°F	54.4°F	52.4°F
Jan 9	53.3°F	54.5°F	52.6°F
Jan 10	53.0°F	54.1°F	52.4°F
Jan 11	53.2°F	54.1°F	52.4°F
Jan 12	52.3°F	53.4°F	52.3°F
Jan 13	50.9°F	53.7°F	52.4°F
Jan 14	49.6°F	53.9°F	52.3°F
Jan 15	50.2°F	54.1°F	52.3°F
Jan 16	50.4°F	53.5°F	52.4°F
Jan 17	50.7°F	53.7°F	52.5°F
Jan 18	50.8°F	53.7°F	52.5°F
Jan 19	50.3°F	53.6°F	52.5°F
Jan 20	50.1°F	53.7°F	52.3°F
Jan 21	49.6°F	53.6°F	52.4°F
Jan 22	49.6°F	53.8°F	52.4°F
Jan 23	49.6°F	54.0°F	52.4°F
Jan 24	49.5°F	53.5°F	52.3°F
Jan 25	49.6°F	53.6°F	52.4°F
Jan 26	49.7°F	53.7°F	52.5°F
Jan 27	49.6°F	53.7°F	52.4°F
Jan 28	49.5°F	53.7°F	52.3°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 Eureka by month

In an average year, Eureka offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Eureka was recorded on August 12, 2022, reaching a 61.8°F. While the coldest temperature occurred on July 15, 2021, dipping to 44.7°F. The average readings by season are 52.2°F in Winter, 51.3°F in Spring, 54.0°F in Summer, and 54.2°F in Autumn.