Climate and monthly weather forecastHallein, Austria
Climate and monthly weather forecast
The climate of Hallein
Hallein, Austria is classified under the Köppen climate classification as Cfb - Marine west coast with a warm summer. It's a climate characterized by a significant amount of rainfall throughout the year, mild summers, and no dry season.Throughout the year, temperature varies from a low of -5.6°C (21.9°F) in February to a peak of 21.9°C (71.4°F) in August. As observed in many regions with this climate type, there is no significant temperature fluctuation making the overall weather condition moderate. Relative humidity varies marginally across the year, with values ranging from 79% in April to a peak of 90% in February.
Rainfall in Hallein is spread fairly evenly throughout the year. Rainfall amounts fluctuate from 30mm (1.18") in November to 104mm (4.09") in May. Precipitation totals throughout the year range between 70mm (2.76") to 104mm (4.09"), reflecting the continuous rainfall expected in this climate. Concurrently, the number of rainfall days varies from 7.9 days in February to 21.8 days in May.
Snowfall in Hallein is evidently more season-dependent. With the highest snowfall of 427mm (16.81") in January and no snowfall, from June to September. This pattern aligns with the cool winters and warm summers typical in a Cfb climate.
The best time to visit Hallein
For tourists seeking to experience Hallein's most comfortable weather, the period between June and August would be ideal. During this timeframe, temperatures peak at 19.6°C (67.3°F) to 21.9°C (71.4°F), rain is moderate, and there are long daylight hours from 14.2 hours to 15.9 hours. Moreover, there is increased visibility of 8 km coupled with less cloud coverage of 34% to 43%.The worst time to visit Hallein
The period between December and February is arguably the least desirable for visitors seeking to explore Hallein. During these months, temperatures are at their coldest dipping to as low as -5.6°C (21.9°F). Furthermore, the considerable snowfall of 221mm (8.7") to 427mm (16.81") could inhibit outdoor activities.Spring weather in Hallein
Spring in Hallein occurs from March to May. During this season, temperatures rise gradually from 6.8°C (44.2°F) in March to 15.8°C (60.4°F) in May. Correspondingly, the number of daylight hours increases from 11.9 hours to 15.2 hours. Rainfall amounts peak in May with 104mm (4.09"), while the number of rainfall days also peaks to 21.8 days. In contrast, snowfall reduces significantly from 95mm (3.74") in March to a minimal 4mm (0.16") in May.Summer weather in Hallein
The summer period spans from June to August. In these months, temperatures reach their maximum with values from 19.6°C (67.3°F) to 21.9°C (71.4°F). Daylight hours are at their longest, extending from 14.2 hours to 15.9 hours. Rainfall ranges between 95mm (3.74") to 103mm (4.06"). During this period, Hallein has its lowest snowfall amount of the year.Autumn weather in Hallein
Autumn sets in from September to November. This season witnesses a steady decline in temperature from 16.9°C (62.4°F) in September to 7.9°C (46.2°F) in November. The number of daylight hours reduces from 12.6 hours to 9.3 hours. Rainfall declines from 58mm (2.28") in September to 30mm (1.18") in November, which is the lowest level of the year.Winter weather in Hallein
Winter in Hallein extends from December to February. It is characterized by the lowest temperatures of the year, dropping to -5.6°C (21.9°F) in February. There is a decrease in daylight hours from 8.5 hours in December to 8.9 hours in January. The winter period also sees the highest snowfall of the year with 205mm (8.07") in December surging to 427mm (16.81") in January.Weather in January
Despite temperatures in Hallein reaching an average high of 1.1°C (34°F) this month, cold snaps dipping down to -5.3°C (22.5°F) are not uncommon. Yet, the chill is far from the only thing making its mark in January. Significant snowfall is a defining characteristic of Hallein's January weather, with accumulations reaching 427mm (16.81"). Weather in January »Weather in February
February in Hallein bears a close resemblance to January in terms of climatic conditions, although temperatures climb slightly to an average high of 1.9°C (35.4°F) and a low of -5.6°C (21.9°F). The month's most noteworthy features include a relatively consistent drop in snowfall, ending with 221mm (8.7") by the month's close. Weather in February »Weather in March
In Hallein, the arrival of March heralds noticeable changes in the weather landscape. From lingering wintery conditions in February, the city moves toward milder temperatures with the high reaching 6.8°C (44.2°F) and lows elevating to -1.4°C (29.5°F). Weather in March »Weather in April
The weather in Hallein undergoes a significant shift in April. With an average high reaching 13°C (55.4°F) and lows rising to 2.2°C (36°F), the air distinctly hints at the arrival of spring. The biggest weather transformation happens in the form of rainfall taking over the precipitations, with snowfall dipping to 37mm (1.46"). Weather in April »Weather in May
May signals the advent of a warmer climate in Hallein. Characterized by a significant rise in temperatures (averaging a high of 15.8°C (60.4°F) and a low of 5.7°C (42.3°F)), the city embraces the full bloom of spring. An increase in rainfall is noted with 104mm (4.09") contributing to the environment's lush green hue. Weather in May »Weather in June
June is a highly anticipated month in Hallein that marks the dawn of summer. The temperatures keep rising with an average high settling at 19.6°C (67.3°F) and the low at 9°C (48.2°F). Interestingly, despite the absence of snowfall, rainfall persists quite noticeably with 95mm (3.74") of precipitation observed. Weather in June »Weather in July
July sees the summit of summer in the city of Hallein. The weather in July sees the year's highest temperatures with 21.7°C (71.1°F) and lows of 10.6°C (51.1°F). Rainfall continues to be a considerable factor with 103mm (4.06") contributing to the city's precipitation. Weather in July »Weather in August
Hallein welcomes August with temperatures very similar to July, as the city continues to bask in the pleasures of its Mediterranean climate. The average high temperature reached is 21.9°C (71.4°F) while the low holds steady at 10.8°C (51.4°F). Weather in August »Weather in September
September in Hallein represents a bridge between the balmier summer days and the crisp onset of autumn. Temperatures decrease, with the average high dipping to 16.9°C (62.4°F) and the low settling at 7.1°C (44.8°F). The month is well-known for a noticeable decrease in rainfall to 58mm (2.28"). Weather in September »Weather in October
In Hallein, October is characterized by a further transition into the colder half of the year. Temperatures continue to decline with an average high of 12.6°C (54.7°F) and a low to 3.5°C (38.3°F). Rainfall sees a bit of an increase at 70mm (2.76") but there is a return of snow, of 5mm (0.2"), typically towards the end of the month. Weather in October »Weather in November
November in Hallein is a blend of late autumn and early winter with temperatures averaging a high of 7.9°C (46.2°F) and a low of 0.4°C (32.7°F). The drastic change in the weather is marked by an increase in snowfall to 50mm (1.97"). Weather in November »Weather in December
With December's arrival, winter takes a firm hold over Hallein. The chill intensifies with temperatures averaging a high of 2.7°C (36.9°F), and a low of -3.1°C (26.4°F). Most striking is the return of substantial snowfall up to 205mm (8.07"), setting a truly winter picture in this Austrian city. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Hallein, Austria
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is January (1.1°C).
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure
Hallein, Austria
- Average pressure in January:
1019mbar - Average pressure in February:
1017.8mbar - Average pressure in March:
1017.1mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1015.7mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1016.6mbar - Average pressure in August:
1017.6mbar - Average pressure in September:
1018.6mbar - Average pressure in October:
1018.9mbar - Average pressure in November:
1016.1mbar - Average pressure in December:
1020.4mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The months with the lowest atmospheric pressure are April and May (1015.7mbar).
Average wind speed
Hallein, Austria
- Average wind speed in January:
7.9km/h - Average wind speed in February:
8.1km/h - Average wind speed in March:
8.5km/h - Average wind speed in April:
7.7km/h - Average wind speed in May:
7.1km/h - Average wind speed in June:
6.7km/h
- Average wind speed in July:
6.7km/h - Average wind speed in August:
6.2km/h - Average wind speed in September:
6.2km/h - Average wind speed in October:
6.8km/h - Average wind speed in November:
6.9km/h - Average wind speed in December:
8.1km/h
The windiest month (with the highest average wind speed) is March (8.5km/h).
The calmest months (with the lowest average wind speed) are August and September (6.2km/h).
Average humidity
Hallein, Austria
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is April (79%).
Average rainfall
Hallein, Austria
The wettest month (with the highest rainfall) is May (104mm).
The driest month (with the least rainfall) is November (30mm).
Average rainfall days
Hallein, Austria
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
21.8 days - Average rainfall days in June:
19.7 days
- Average rainfall days in July:
21 days - Average rainfall days in August:
18.8 days - Average rainfall days in September:
15.3 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is February (7.9 days).
Average snowfall
Hallein, Austria
The month with the highest snowfall is January (427mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Hallein, Austria
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
10.4 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
3.5 days - Average snowfall days in December:
9.5 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hallein, Austria
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 0min - Average sunshine in April:
9h and 0min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Hallein, Austria
- Average sunshine days in January:
13.3 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
12 days - Average sunshine days in April:
14 days - Average sunshine days in May:
7.7 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
7.8 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
12.6 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (7.7 days).
Average UV index
Hallein, Austria
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Hallein, Austria
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Hallein, Austria
The months with the highest visibility are March, April, May, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February and September (7km).





