Climate of Herisau, Appenzell Ausserrhoden, Switzerland
Point-value climate at Herisau (Appenzell Ausserrhoden, Switzerland). Population approximately 15,438.
Located in Appenzell Ausserrhoden, Switzerland, Herisau has a seasonal climate. Population approximately 15,438. Monthly average temperatures range from -0.4°C / 31.3°F in January to 16.9°C / 62.4°F in July, with rainfall varying from 63 mm / 2.5 in (January) to 155 mm / 6.1 in (July) — about 1257 mm / 49.5 in across the year. Herisau is the capital of Appenzell Ausserrhoden. These are point-value climate normals sampled at Herisau's coordinates — often quite different from the surrounding region's area-weighted average.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -0.4°C31.3°F | 63 mm2.5″ | Snowy |
| February | 0.3°C32.5°F | 71 mm2.8″ | Snowy |
| March | 3.9°C39°F | 77 mm3″ | — |
| April | 6.9°C44.4°F | 102 mm4″ | — |
| May | 11.8°C53.2°F | 121 mm4.8″ | — |
| June | 14.6°C58.3°F | 150 mm5.9″ | — |
| July | 16.9°C62.4°F | 155 mm6.1″ | — |
| August | 16.7°C62.1°F | 146 mm5.7″ | — |
| September | 13.1°C55.6°F | 112 mm4.4″ | — |
| October | 8.6°C47.5°F | 84 mm3.3″ | — |
| November | 3.4°C38.1°F | 96 mm3.8″ | — |
| December | 0.6°C33.1°F | 80 mm3.1″ | Snowy |
Frequently asked questions
What is the best time to visit Herisau?
Herisau does not have a clearly "sunny" season by our profile cutoffs — see the "warmest and driest months" fallback for the closest picks. Herisau's warmest month is July at an average of 16.9°C / 62.4°F, and its driest month is January with about 63 mm / 2.5 in of rain.
What is the climate of Herisau?
Herisau, in Appenzell Ausserrhoden, Switzerland, has monthly average temperatures ranging from -0.4°C / 31.3°F in January to 16.9°C / 62.4°F in July. Annual rainfall is approximately 1257 mm / 49.5 in, with the wettest month being July (155 mm / 6.1 in) and the driest January (63 mm / 2.5 in).
What is the average temperature in Herisau in July?
The average temperature in Herisau in July is 16.9°C / 62.4°F, with rainfall of about 155 mm / 6.1 in — the warmest month of the year.
When is the driest month in Herisau?
The driest month in Herisau is January, with about 63 mm / 2.5 in of average monthly rainfall. Average temperature that month is -0.4°C / 31.3°F.
When is the wettest month in Herisau?
The wettest month in Herisau is July, with approximately 155 mm / 6.1 in of average monthly rainfall.