Switzerland Geneva Weather in May — Climate Guide
May in Geneva is high
May is high for Geneva.
May in Geneva is warm, green, and one of the best months to visit — averaging about 19°C/10°C with long, bright days, though it's also one of the wetter months with occasional thundery showers.
This is the start of the prime window: the Jet d'Eau runs full, lakeside buvettes open, lake cruises get going, and filets de perche come into season. It's ideal for the lakefront, the Old Town, outdoor dining, and day trips to Lausanne, the Lavaux vineyards, Annecy, and Mont Blanc, where lower trails open for hiking.
Travel score
Geneva May Weather Stats
Avg High
19°C
Avg Low
10°C
Rainy Days
12
80mm total
Sunshine
6.5h
Daily avg
Humidity
70%
comfortable
UV Index
6
High
Wind
9 km/h
Gusts 22
Crowds
Busy
At attractions
May Sunrise & Sunset
Air Quality
PM2.5
16 μg/m³
PM10
29 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
19°C
Nighttime
10°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 22 km/h
Activities Recommended for May
May Travel Pros & Cons
Pros
- Warm, long, bright days
- Lakeside buvettes open + perch season begins
- Jet d'Eau and cruises in full swing
- Great for all day trips
Cons
- One of the wetter months — thundery showers
- Crowds and prices rising
- Occasional cool, breezy days
- Book ahead for popular spots
May Events & Festivals
- Lakeside buvettes opening for the season
- Filets de perche season beginning
- Long, warm days for cruises and lakefront dining
- Start of the prime visiting window
Geneva in May — Full Picture
May in Geneva is warm, green, and one of the best months to visit — averaging about 19°C/10°C with long, bright days, though it's also one of the wetter months with occasional thundery showers.
This is the start of the prime window: the Jet d'Eau runs full, lakeside buvettes open, lake cruises get going, and filets de perche come into season. It's ideal for the lakefront, the Old Town, outdoor dining, and day trips to Lausanne, the Lavaux vineyards, Annecy, and Mont Blanc, where lower trails open for hiking.
Crowds and prices climb toward the summer peak, so book ahead, but the weather-to-value balance is excellent. Warm afternoons and mild evenings make this a fine time for lakeside dinners and a sunset by the fountain.
Note: May can be showery, so keep a waterproof handy, and the bise can still appear on cooler days.
What to Wear & What to Pack
Warm late spring — around 19°C/10°C, comfortable by day with mild evenings. Light layers, a light jacket for evenings, and a packable waterproof for occasional showers. Sunglasses and SPF as UV climbs.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current15°C
6.3°C
11/mo
Summer (Jun·Jul·Aug)
24.7°C
14.3°C
9.7/mo
Autumn (Sep·Oct·Nov)
15°C
7.7°C
10/mo
Winter (Dec·Jan·Feb)
5°C
0.3°C
10.7/mo
Geneva Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 4° | 0° | 11d·76mm | 2h | 82% | 1 | Quiet | Shoulder | |
| 6° | 0° | 10d·64mm | 3.5h | 78% | 2 | Quiet | Shoulder | |
| 11° | 3° | 10d·65mm | 4.5h | 72% | 3 | Quiet | Shoulder | |
| 15° | 6° | 11d·68mm | 5.5h | 70% | 5 | Moderate | Shoulder | |
| May (Best) | 19° | 10° | 12d·80mm | 6.5h | 70% | 6 | Busy | Peak |
| June (Best) | 23° | 13° | 11d·75mm | 7.5h | 67% | 7 | Busy | Peak |
| July (Best) | 26° | 15° | 9d·73mm | 8h | 64% | 8 | Very busy | Peak |
| August (Best) | 25° | 15° | 9d·80mm | 7.5h | 67% | 7 | Very busy | Peak |
| September (Best) | 21° | 12° | 9d·75mm | 6h | 72% | 5 | Busy | Peak |
| 15° | 8° | 10d·86mm | 4h | 78% | 3 | Moderate | Shoulder | |
| 9° | 3° | 11d·82mm | 2.5h | 82% | 1 | Quiet | Shoulder | |
| 5° | 1° | 11d·81mm | 2h | 84% | 1 | Moderate | Peak |
View Other Months
Geneva May Hotel Picks
Frequently Asked Questions
Is May a good time to visit Geneva?
Geneva in May is high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Geneva in May?
Geneva May averages a high of 19°C and a low of 10°C.
Does it rain much in Geneva in May?
Geneva May averages 80mm of rainfall over about 12 rainy days.
What should I wear in Geneva in May?
Warm late spring — around 19°C/10°C, comfortable by day with mild evenings. Light layers, a light jacket for evenings, and a packable waterproof for occasional showers. Sunglasses and SPF as UV climbs.
What time are sunrise and sunset in Geneva in May?
Geneva May sunrise is 06:00 and sunset is 21:05, with 15h 05min of daylight.
What's the air quality like in Geneva in May?
Geneva May air quality (AQI) averages 43, rated Good. PM2.5 averages 16μg/m³.
What activities are recommended in Geneva in May?
In May, Geneva is great for Lakefront + Jet d'Eau + flower clock, Lake Geneva cruise, Lausanne + Lavaux vineyards.
Is May peak season in Geneva?
Geneva May crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Geneva
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.