Heltermaa weather — today and 5-day forecast
22.5°C
air temp
Wind
1.6 m/s
Northeast
Humidity
77.4%
Pressure
1015.2 hPa
5-day forecast
26°
17°
2.1 m/s
26°
18°
3.8 m/s
27°
14°
4.1 m/s
22°
16°
6.6 m/s
20°
16°
7.6 m/s
Hourly forecast
26°2 m/s
25°1 m/s
24°1 m/s
23°1 m/s
22°1 m/s
21°2 m/s
20°2 m/s
20°2 m/s
20°2 m/s
20°2 m/s
20°3 m/s
19°3 m/s
19°2 m/s
19°3 m/s
20°4 m/s
21°4 m/s
22°4 m/s
24°4 m/s
24°3 m/s
25°3 m/s
25°3 m/s
26°3 m/s
25°3 m/s
25°3 m/s
Location & geography
Heltermaa is Hiiumaa's main port, from which ferries depart to the mainland. The port's measuring station provides important information for managing transit traffic across the strait, especially during storm warnings.
- Coordinates: 58,868° N, 22,985° E
- Elevation: 3 m
- County: Hiiu County
Monthly averages
| Month | Avg °C | Highest °C | Lowest °C | Precip mm |
|---|---|---|---|---|
| Jan | -2.5 | 5.2 | -14.9 | 51.5 |
| Feb | -2.3 | 5.3 | -15.1 | 38.1 |
| Mar | 0.2 | 9.3 | -11.7 | 34.2 |
| Apr | 5.1 | 16.9 | -4.7 | 30.2 |
| May | 11.0 | 22.2 | -0.5 | 33.7 |
| Jun | 15.0 | 24.6 | 4.2 | 56.0 |
| Jul | 18.2 | 27.4 | 9.1 | 57.0 |
| Aug | 17.5 | 26.2 | 8.0 | 83.9 |
| Sep | 13.5 | 21.2 | 3.1 | 64.1 |
| Oct | 7.8 | 15.0 | -2.2 | 71.4 |
| Nov | 4.3 | 9.9 | -5.7 | 62.6 |
| Dec | 0.9 | 6.6 | -9.6 | 55.8 |
Frequently asked questions
How warm are the summers?
The warmest month is July, when the average daily air temperature is 18.2°C.
How cold are the winters?
The coldest month is January, averaging -2.5°C. Snow cover comes and melts several times through the winter.
How much precipitation falls per year?
On average 638 mm falls per year. The wettest month is August (83.9 mm), the driest April (30.2 mm).
How large is the annual temperature swing?
The difference between the warmest (July) and coldest (January) months' averages is about 21°C.