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 5.56°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.

42.0

°F

May 21, 19:07

Trend:

increasing

Yesterday:

40.8°F

Tomorrow:

42.3°F

Sunrise:

03:11

Sunset:

23:15

Day Length:

20 h. 4 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 42.0°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 1.0°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 45.6°F on 2025, while the historical minimum was 39.0°F on 2021.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 42.4°F, with minimum temperature starting at 42.2°F, while the maximum might reach 42.7°F.

Daily water temperature in Siglufjörður

Date	Current Year actual* / forecast**	last year	10 years average
May 7	38.7°F	41.1°F	39.0°F
May 8	38.2°F	41.0°F	39.0°F
May 9	38.4°F	41.2°F	39.1°F
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	42.3°F	46.5°F	41.4°F
May 23	42.4°F	46.3°F	41.4°F
May 24	42.4°F	46.0°F	41.5°F
May 25	42.4°F	45.7°F	41.5°F
May 26	42.7°F	45.4°F	41.7°F
May 27	42.6°F	44.5°F	41.6°F
May 28	42.2°F	44.0°F	41.2°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.