Weather by month for Bern, the best months to go and how Switzerland's regions differ, scored from 10 years of climate data.
Aug, Sep
The highest month scores: comfortable temperatures, little rain and plenty of sun.
Highs 19°C to 24°C · 11–13 rain days
May, Jun, Jul, Oct
Still good weather, just not quite the top months.
Highs 15°C to 24°C · 12–17 rain days
Jan, Feb, Mar, Nov, Dec
The weakest weather of the year: too hot, too cold or too wet.
Highs 4°C to 10°C · 12–14 rain days
Weather by month
Average highs and lows, rain days, sunshine and our month score out of 10.
| Month | High / low | Rain days | Sunshine | Score |
|---|---|---|---|---|
| January | 4°C / -3°C | 14 days (96 mm) | 5.2 h/day | 1.3/10 |
| February | 7°C / -1°C | 12 days (71 mm) | 6.5 h/day | 2.3/10 |
| March | 10°C / 0°C | 14 days (80 mm) | 8.2 h/day | 3.7/10 |
| April | 14°C / 3°C | 13 days (94 mm) | 10.0 h/day | 5.6/10 |
| May | 17°C / 8°C | 17 days (142 mm) | 10.2 h/day | 6.7/10 |
| June | 22°C / 13°C | 16 days (135 mm) | 11.7 h/day | 7.1/10 |
| July | 24°C / 14°C | 15 days (115 mm) | 12.5 h/day | 7.2/10 |
| Best month: August | 24°C / 14°C | 13 days (111 mm) | 10.9 h/day | 7.5/10 |
| Best month: September | 19°C / 10°C | 11 days (88 mm) | 9.7 h/day | 7.8/10 |
| October | 15°C / 6°C | 12 days (96 mm) | 7.5 h/day | 6.1/10 |
| November | 8°C / 1°C | 13 days (100 mm) | 5.6 h/day | 2.1/10 |
| December | 5°C / -1°C | 14 days (105 mm) | 5.0 h/day | 1.5/10 |
Figures for Bern; the country's best months are weighted across its cities. Best months are highlighted. How we score months
Month by month
4°C / -3°C · 14 rain days · 5.2 h sun
Bern averages a high of 4°C and a low of -2.7°C, with 14.3 rain (or snow) days and just 5.2 hours of sun a day. The score of 1.3 puts this month in the lowest tier. New Year's Day falls on 1 January. Cold, grey and damp conditions make this a quiet, low-light month.
7°C / -1°C · 12 rain days · 6.5 h sun
Highs reach 6.9°C and lows sit at -1.4°C, with 12 rain days and 6.5 hours of sun. The score of 2.3 still marks this as a tough-weather month. Days are getting longer but the chill remains, and skies stay mostly overcast.
10°C / 0°C · 14 rain days · 8.2 h sun
Temperatures climb to a 10.1°C high and 0.4°C low, with 13.5 rain days and 8.2 hours of sun. The score of 3.7 keeps March in the weaker range. Spring is arriving but rain is frequent and temperatures still swing near freezing at night.
14°C / 3°C · 13 rain days · 10.0 h sun
Highs hit 13.7°C and lows 3.2°C, with 12.8 rain days and 10 hours of sun. The score rises to 5.6, an ok month. Weather is changeable, with a mix of mild spells and showers typical of early spring.
17°C / 8°C · 17 rain days · 10.2 h sun
Highs reach 16.9°C and lows 7.7°C, though May is the wettest month with 17 rain days and 142mm of rain. Sun hours hit 10.2 and the score of 6.7 rates it good. Ascension Day falls on 14 May; expect frequent showers between warmer, sunnier spells.
22°C / 13°C · 16 rain days · 11.7 h sun
Highs climb to 22.1°C and lows to 12.5°C, with 15.9 rain days and 11.7 hours of sun. The score of 7.1 marks this as a good month. Warm days are common but rain remains frequent, often in short bursts.
24°C / 14°C · 15 rain days · 12.5 h sun
July is warm, with highs of 24.4°C and lows of 14.4°C, 14.5 rain days and 12.5 hours of sun, the sunniest month. The score of 7.2 keeps it in the good range, with reliable summer heat and lighter rainfall than June.
24°C / 14°C · 13 rain days · 10.9 h sun
Highs stay high at 24.1°C and lows at 14.1°C, with 12.6 rain days and 10.9 hours of sun. The score of 7.5 makes this a best month. Swiss National Day falls on 1 August, and warm, mostly dry conditions suit outdoor plans.
19°C / 10°C · 11 rain days · 9.7 h sun
Highs ease to 19.4°C and lows to 10.2°C, with just 11 rain days and 9.7 hours of sun. The score of 7.8 is the highest of the year, a best month. Mild days, fewer rainy days and clear light make this a strong choice.
15°C / 6°C · 12 rain days · 7.5 h sun
Highs drop to 14.7°C and lows to 6.1°C, with 11.8 rain days and 7.5 hours of sun. The score of 6.1 still rates it good. Autumn cooling is clear but rain stays moderate and daylight hours shrink.
8°C / 1°C · 13 rain days · 5.6 h sun
Highs fall to 8.3°C and lows to 1.2°C, with 12.9 rain days and only 5.6 hours of sun. The score of 2.1 puts November back in the tough tier. Grey skies and cold, damp air dominate as winter approaches.
5°C / -1°C · 14 rain days · 5.0 h sun
Highs reach just 5.4°C and lows drop to -1.4°C, with 13.5 rain days and only 5 hours of sun, among the darkest months. The score of 1.5 marks it as tough weather. Christmas Day falls on 25 December amid cold, short, often snowy days.
By trip type
City sightseeing
August and September are good for city trips. Bern highs reach 24.1°C in August and 19.4°C in September, with fewer rain days in September (11) than in peak summer, making sightseeing comfortable.
Hiking & nature
September and October suit hiking best. Temperatures cool to 19.4°C and 14.7°C highs, rain days drop to 11 and 11.8, and sun hours stay decent at 9.7 and 7.5, giving clearer trails and fewer storms than summer.
Events calendar
Keep planning
FAQ
Yes, August is one of the best months, with a score of 7.5 out of 10. Bern sees a high of 24.1°C and a low of 14.1°C, with 10.9 hours of sun a day. It still rains on about 12.6 days, so pack a light rain layer even in warm weather.
Yes, September is the top-scoring month at 7.8 out of 10. Daytime highs reach 19.4°C and nights cool to 10.2°C, with 9.7 hours of sun and fewer rain days, 11, than most of the summer. It's a reliable mix of warmth and drier weather.
January scores only 1.3 out of 10, the lowest of the year. Bern's high is just 4.1°C and the low drops to -2.7°C, with only 5.2 hours of sun a day and 14.3 rain or snow days. It's cold and dim, though this is prime time for snow and winter scenery if that's what you're after.
Yes, June scores 7.1 out of 10 and counts as a good month. Highs reach 22.1°C with lows of 12.5°C and 11.7 hours of sun daily. It's also one of the wetter months, with 15.9 rain days and 135mm of rainfall, so showers are common even on warm days.
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