What is the current water temperature in Siglufjörður?

Q: What is the current water temperature in Siglufjörður?

As of now, in Siglufjörður, the water temperature is 4.33°C. 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.

Iceland > Siglufjörður

Water temperature in Siglufjörður

Detailed information about the current water temperature in Siglufjörður. 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.

39.8

°F

May 24, 19:44

Trend:

decreasing

Yesterday:

40.0°F

Tomorrow:

39.8°F

Sunrise:

02:59

Sunset:

23:28

Day Length:

20 h. 29 min.

Siglufjörður in May

Minimum:

32.7°F

Average:

38.4°F

Maximum:

40.9°F

Sea water temperature in Siglufjörður today

As of now, in Siglufjörður, the water temperature is 39.8°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 1.7°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 slightly 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 46.0°F on 2025, while the historical minimum was 39.4°F on 2021.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 39.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Siglufjörður

Date	Current Year actual* / forecast**	last year	10 years average
May 10	38.7°F	41.1°F	39.0°F
May 11	39.3°F	41.1°F	39.0°F
May 12	39.2°F	41.1°F	39.0°F
May 13	39.3°F	40.8°F	39.3°F
May 14	39.1°F	41.2°F	39.5°F
May 15	39.5°F	41.7°F	39.6°F
May 16	39.5°F	42.1°F	39.7°F
May 17	40.8°F	43.0°F	40.1°F
May 18	41.2°F	43.9°F	40.4°F
May 19	41.2°F	44.9°F	40.7°F
May 20	40.8°F	45.8°F	40.9°F
May 21	42.0°F	45.6°F	41.1°F
May 22	41.3°F	46.5°F	41.4°F
May 23	40.0°F	46.3°F	41.3°F
May 24	39.8°F	46.0°F	41.5°F
May 25	39.8°F	45.7°F	41.5°F
May 26	40.0°F	45.4°F	41.7°F
May 27	39.9°F	44.5°F	41.6°F
May 28	39.6°F	44.0°F	41.2°F
May 29	39.7°F	43.6°F	41.3°F
May 30	39.9°F	43.4°F	41.6°F
May 31	40.3°F	43.9°F	42.0°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 Siglufjörður by month

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

The warmest water in Siglufjörður was recorded on August 27, 2021, reaching a 54.5°F. While the coldest temperature occurred on January 5, 2025, dipping to 32.7°F. The average readings by season are 38.3°F in Winter, 37.9°F in Spring, 46.6°F in Summer, and 43.9°F in Autumn.