The most detailed information about the water temperature in Belfast in Atlantic Ocean (Maine, United States). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Belfast for a week.
Water temperature in Belfast right now
data updated 28 minutes ago43°F
yesterday: 42°F
a week ago: 41°F
Trend: slow rise
Today water temperature in Belfast is 43.0°F. At this temperature, you can only immerse yourself in water for a few minutes. But it should be remembered that even for trained and seasoned people, this can be dangerous. In any case, the general weather is also important. So, the air temperature at the same time will reach 48°F.
Analysis and forecast
The water temperature today roughly corresponds to the average value on this day in recent years. Its value has rise both over the past 20 days and over the past week. Exactly a year ago, on this day, the water temperature in this location was 42°F. Water temperature range in Belfast in April is from 35 to 44 degrees.
According to our forecast, the water temperature in Belfast will slowly rise for at least the next 10 days and reach a value of 44°F.
Table of water temperature values in Belfast
| Day | Fact* | Average** | Forecast*** |
| Apr 19 | 5.5°C | 4.8°C | |
| Apr 20 | 5.7°C | 5.3°C | |
| Apr 21 | 5.6°C | 5.8°C | |
| Apr 22 | 5.6°C | 5.0°C | |
| Apr 23 | 5.7°C | 5.3°C | |
| Apr 24 | 5.9°C | 5.5°C | |
| Apr 25 | 5.7°C | 6.0°C | |
| Apr 26 | 6.1°C | 5.8°C | |
| Apr 27 | 5.5°C | 5.8°C | |
| Apr 28 | 5.8°C | 6.1°C | |
| Apr 29 | 5.8°C | 6.1°C | |
| Apr 30 | 5.5°C | 5.8°C | |
| May 1 | 5.8°C | 6.1°C | |
| May 2 | 6.3°C | 6.6°C | |
| May 3 | 6.0°C | 6.3°C |
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature
Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.
To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in United States.
Annual graph of average water temperature change in Belfast
Water temperature in Belfast by month
Belfast located in the northern hemisphere, at latitude 44 degrees. The water in this location never warms up to comfortable values. Average annual water temperature on the coast in Belfast is 47°F, by the seasons: in winter 40°F, in spring 41°F, in summer 56°F, in autumn 53°F. Minimum water temperature (36°F) in Belfast it happens in February, maximum (62°F) in August.
You can find out detailed data on how the water temperature in Belfast changes in each specific month:
Belfast: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Searsport | 42°C | 9km |
| Northport | 42°C  | 11km |
| Lincolnville | 42°C | 17km |
| Castine | 43°C | 17km |
| Islesboro | 42°C | 18km |
| Camden | 43°C | 25km |
| Rockport | 43°C | 29km |
| Sedgwick | 42°C | 34km |
| Blue Hill | 43°C | 35km |
| Rockland | 43°C | 37km |
| South Thomaston | 43°C | 43km |
| Vinalhaven | 43°C | 45km |
** Straight line distance in kilometers
The warmest water today in United States recorded in Marathon, its value is 79°F. Lowest - in Nome, there water temperature now 28°F. Average water temperature in the country today - 57°F.
Water temperature data in Belfast and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.
We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.
The nearest airport is located in a 41 kilometers. This is Knox County Regional (RKD) airport. We have no information as to whether it is valid and what flights it receives or sends.
Belfast: weather forecast
The weather forecast is shown in local time in Belfast
14km/hhumidity: 30%, clouds: 0%
15km/hhumidity: 25%, clouds: 3%
9km/hhumidity: 31%, clouds: 54%
3km/hhumidity: 72%, clouds: 46%
5km/hhumidity: 78%, clouds: 63%
4km/hhumidity: 79%, clouds: 33%
4km/hhumidity: 79%, clouds: 0%
5km/hhumidity: 52%, clouds: 1%
5km/hhumidity: 38%, clouds: 0%
5km/hhumidity: 42%, clouds: 1%
12km/hhumidity: 51%, clouds: 42%
7km/hhumidity: 82%, clouds: 71%
6km/hhumidity: 86%, clouds: 100%
5km/hhumidity: 88%, clouds: 100%
4km/hhumidity: 94%, clouds: 100%
9km/hhumidity: 68%, clouds: 100%
13km/hhumidity: 57%, clouds: 100%
16km/hhumidity: 50%, clouds: 72%
14km/hhumidity: 57%, clouds: 62%
6km/hhumidity: 93%, clouds: 71%
4km/hhumidity: 96%, clouds: 100%
1km/hhumidity: 96%, clouds: 100%
6km/hhumidity: 96%, clouds: 100%
16km/hhumidity: 83%, clouds: 100%
18km/hhumidity: 67%, clouds: 99%
16km/hhumidity: 57%, clouds: 99%
15km/hhumidity: 58%, clouds: 90%
3km/hhumidity: 82%, clouds: 94%
3km/hhumidity: 92%, clouds: 85%
6km/hhumidity: 97%, clouds: 88%
5km/hhumidity: 89%, clouds: 73%
6km/hhumidity: 57%, clouds: 87%
5km/hhumidity: 46%, clouds: 100%
9km/hhumidity: 95%, clouds: 100%
9km/hhumidity: 97%, clouds: 100%
6km/hhumidity: 98%, clouds: 100%
