When is the best time to go to Willisau
The chart above shows the best time of year to visit Willisau, Switzerland. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Willisau
Willisau weather by month
Please note our recommendations for when to visit Willisau are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 1°C | 73mm | 2.4hrs | 10.1hrs |
January is a reasonably dry month in Willisau and the temperature is generally cold.
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
January is in the winter in Willisau and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 1°C (34°F), whilst at night -4°C (24°F) is normal.
On average January is the driest month of the year in Willisau with around 73mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.4 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 3°C | 69mm | 3.6hrs | 11.4hrs |
February in Willisau is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
February is in the winter in Willisau and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 3°C (37°F), whilst at night -3°C (26°F) is normal.
On average February is the 2nd driest month of the year in Willisau with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.6 hours of sunshine per day.
Willisau weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 6°C | 69mm | 4.5hrs | 12.8hrs |
The weather in March in Willisau is characteristically cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in Willisau and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 7°C (44°F), whilst at night -1°C (30°F) is normal.
On average March is the 3rd driest month of the year in Willisau with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.5 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 10°C | 88mm | 5.3hrs | 14.6hrs |
Willisau's weather in April is typically cool and a little damp in nature.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Willisau.
April is in the spring in Willisau and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (52°F), whilst at night 3°C (37°F) is normal.
On average April is the 4th driest month of the year in Willisau with around 88mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 14°C | 107mm | 5.9hrs | 16.2hrs |
May is a damp month in Willisau and the temperature is generally mild.
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
May is in the spring in Willisau and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 6°C (43°F) is normal.
On average May is the 5th driest month of the year in Willisau with around 107mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 135mm | 6.7hrs | 10.1hrs |
Mild and wet weather often prevails in Willisau during the month of June
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often not a good and not conducive to spending time outdoors.
June is in the summer in Willisau and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 10°C (49°F) is normal.
On average June is the 6th driest month of the year in Willisau with around 135mm 5.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 19°C | 125mm | 7.7hrs | 11.4hrs |
July in Willisau is generally wet with the temperature being mild.
It is perhaps the perfect month to visit Willisau, with some particularly good weather at this time of year.
July is in the summer in Willisau and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 11°C (53°F) is normal.
On average July is the 6th wettest month of the year in Willisau with around 125mm 4.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.7 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 146mm | 6.9hrs | 12.8hrs |
The weather in August in Willisau is characteristically mild and wet.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Willisau.
August is in the summer in Willisau and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 11°C (52°F) is normal.
On average August is the 5th wettest month of the year in Willisau with around 146mm 5.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.9 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 95mm | 6hrs | 14.6hrs |
Willisau's weather in September is typically mild and a little damp in nature.
It is perhaps the perfect month to visit Willisau, with some particularly good weather at this time of year.
September is in the fall / autumn in Willisau and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 17°C (63°F), whilst at night 9°C (48°F) is normal.
On average September is the 4th wettest month of the year in Willisau with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
Willisau weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 11°C | 67mm | 4.3hrs | 16.2hrs |
October is a reasonably dry month in Willisau and the temperature is generally cool.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Willisau.
October is in the fall / autumn in Willisau and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 5°C (41°F) is normal.
On average October is the 3rd wettest month of the year in Willisau with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.3 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 6°C | 87mm | 2.8hrs | 10.1hrs |
November is a a little damp month in Willisau and the temperature is generally cool.
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
November is in the fall / autumn in Willisau and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 6°C (43°F), whilst at night 0°C (33°F) is normal.
On average November is the 2nd wettest month of the year in Willisau with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.8 hours of sunshine per day.
Willisau weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 2°C | 73mm | 2.3hrs | 11.4hrs |
December in Willisau is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Willisau for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
December is in the winter in Willisau and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 2°C (36°F), whilst at night -3°C (26°F) is normal.
On average December is the wettest month of the year in Willisau with around 73mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.3 hours of sunshine per day.
Other monthly averages
Willisau weather stats
| Hottest month: | July | 21°C 69.8°F |
|---|---|---|
| Driest month: | October | 67mm 2.6ins |
| Sunniest month: | July | 7.7hrs |
| Coldest month: | January | 1.1°C 34°F |
| Wettest month: | August | 146mm 5.7ins |
| Warmest sea: | August | 22.3°C 72.1°F |
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