Hamar — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Hamar, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Hamar today is 2.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| APR 11 | 2.5°C | 4.0°C | |
| APR 12 | 2.6°C | 4.0°C | |
| APR 13 | 2.5°C | 4.0°C | |
| APR 14 | 2.5°C | 4.0°C | |
| APR 15 | 2.5°C | 4.0°C | |
| APR 16 | 2.7°C | 4.0°C | |
| APR 17 | 2.7°C | 4.0°C | |
| APR 18 | 2.7°C | 4.0°C | |
| APR 19 | 4.0°C | 2.8°C | |
| APR 20 | 4.0°C | 2.8°C | |
| APR 21 | 4.0°C | 2.9°C | |
| APR 22 | 4.0°C | 3.0°C | |
| APR 23 | 4.0°C | 3.0°C | |
| APR 24 | 4.0°C | 3.1°C | |
| APR 25 | 4.0°C | 3.2°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 1°C | 4°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 4°C | 7°C |
| May | 5°C | 9°C | 14°C |
| June | 10°C | 15°C | 19°C |
| July | 11°C | 16°C | 20°C |
| August | 12°C | 17°C | 21°C |
| September | 9°C | 14°C | 18°C |
| October | 4°C | 8°C | 10°C |
| November | 0°C | 4°C | 7°C |
| December | 0°C | 2°C | 5°C |
Hamar: Weather Forecast
April 19
April 20
April 21
April 22
Location & Local Information
Hamar (in Norwegian: Hamar) is a town on the shores of Lake Mjøsa in Innlandet County, and the lake strongly shapes local recreational life. Water temperatures in Mjøsa around Hamar vary through the year: in winter the surface is typically around 0–4 °C (32–39 °F) and can freeze in cold winters; spring temperatures rise to roughly 4–12 °C (39–54 °F) as ice melts and the water stratifies; summer bathing temperatures commonly range from about 16–22 °C (61–72 °F), with warm spells occasionally pushing surface water to 23–25 °C (73–77 °F); autumn sees a steady decline toward 10–15 °C (50–59 °F). These are general seasonal ranges and can shift with weather and wind.
Swimming in and around Hamar is allowed and popular, with several municipal beaches and maintained bathing spots offering safe access to the lake when conditions are normal. Authorities monitor water quality and post advisories if problems such as algal blooms occur, and ice conditions in winter are assessed before any skating or ice-swimming is considered safe. Visitors should take ordinary precautions for cold-water exposure, check local notices, and avoid venturing onto ice or into open water during warnings or when temperatures are very low.