Monthly climate averages for Jongny, Switzerland. Based on 10-year ERA5 reanalysis data.
Cfb Oceanic
Climate OverviewJongny, Switzerland in August has warm conditions, with highs averaging 23.7°C (75°F). Rain falls on about 10 days this month.
This month falls at the end of Summer.
Temperatures remain fairly steady throughout August, with daily highs around 23°C (73°F).
August sees fairly even rainfall, totalling about 93 mm across the month.
Expect around 11.2h of sunshine at the start of August, decreasing to 9.7h by the end.
The warmest days tend to fall around the 13th, averaging 25.4°C (78°F).
Compared to July, this month is about 0°C cooler with 3 fewer rainy days. Temperatures begin dropping heading into September.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 24°C (75°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
2 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / 0°C | 2°C / -4°C | 15days (136 mm) Wet | 5.3h Fair | 83% Humid | 1.6 Low | Poor | View Details |
| February | 8°C / 0°C | 5°C / -3°C | 11days (84 mm) Wet | 6.7h Fair | 80% Humid | 2.4 Moderate | Poor | View Details |
| March | 10°C / 1°C | 8°C / -2°C | 13days (94 mm) Wet | 8.5h Good | 76% Humid | 3.9 Moderate | Poor | View Details |
| April | 14°C / 4°C | 12°C / 1°C | 12days (89 mm) Wet | 10.4h Excellent | 73% Muggy | 5.2 High | Fair | View Details |
| May | 17°C / 8°C | 17°C / 6°C | 15days (134 mm) Wet | 10.4h Excellent | 76% Humid | 5.8 High | Good | View Details |
| June best | 22°C / 13°C | 23°C / 13°C | 13days (93 mm) Wet | 11.7h Excellent | 75% Muggy | 6.8 High | Excellent | View Details |
| July best | 24°C / 15°C | 25°C / 16°C | 13days (112 mm) Wet | 12.1h Excellent | 73% Muggy | 6.9 High | Excellent | View Details |
| August best | 24°C / 15°C | 25°C / 16°C | 10days (93 mm) Wet | 11h Excellent | 75% Muggy | 6.2 High | Excellent | View Details |
| September best | 19°C / 12°C | 20°C / 12°C | 12days (107 mm) Wet | 8.9h Good | 79% Humid | 4.5 Moderate | Good | View Details |
| October | 16°C / 8°C | 15°C / 6°C | 12days (100 mm) Wet | 7.3h Good | 82% Humid | 3 Moderate | Good | View Details |
| November | 10°C / 3°C | 8°C / 1°C | 14days (127 mm) Wet | 5.7h Fair | 84% Humid | 1.8 Low | Poor | View Details |
| December | 6°C / 1°C | 4°C / -3°C | 14days (140 mm) Wet | 4.9h Fair | 85% Humid | 1.4 Low | Poor | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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