Best time to visit Annecy

Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.

Saved to this browser. Changes update the strips below.
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Day · avg daily high (?)
Night · avg overnight low (?)
Heatwaves · days/yr ≥35°C ETCCDI TX35 (?)
1
Tropical nights · nights/yr ≥20°C ETCCDI TR20 — sleep killer (?)
13
UV index · On a typical day around midday, UV is about this (?)
123457764311
On the sunniest 1 in 10 days, UV reaches this — and even higher
46799864
PM2.5 air quality · on a typical day (?)
1215128786768912
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
2225201311119119141617
August 8/10 feels 28°C (+2°C vs 1991-2020) · HCI 82/100
Day 26° · Night 16° · cools 10° at night ⚠ 1.2 days/yr ≥35° · peak 5 in worst year 🌙 3 tropical nights/yr · peak 6 57% humidity 11 km/h wind 10 rain days (117h) 273h sun
Thermal 9
Sky 8
Rain 7
Wind 9

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.

Tours in Annecy

6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Annecy).

  1. 1Private 2-hour Walking Tour of Annecy with official tour guide4.92★ (12)2hfrom $285
  2. 2All Inclusive Food Tour of Annecy Old Town with Local Guide4.32★ (25)3h 30mfrom $161🔥 Selling fast
  3. 3Luxury Private Concierge - Chamonix Bespoke Experience5.00★ (3)from $59
  4. 4Private Market Tour and Cooking Class in Annecy with a Local4.92★ (36)4hfrom $195
  5. 5Luxury Private Concierge - Bespoke Megève Experience5.00★ (1)from $59
  6. 6Luxury Private Concierge - Annecy Bespoke Experience5.00★ (1)from $59

Last refreshed 2026-05-27.

Similar climatesGeneva94% · Zurich90% · Plitvice Lakes90%

Other destinations with the most-alike year-round climate to Annecy (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Annecy's. Based on the 2020-2024 climatology, not this year's actual weather.

Month-by-month

Month Temp °C Feels °C Rain days Rain h Rain h/day Humidity Wind km/h Sun h UV Interest Score
Jan 0–7 4 12 173 14.4 75% 9 130 1 Quiet 4
Feb 2–10 8 12 145 12.1 68% 10 152 2 Quiet 5
Mar 3–13 10 13 150 11.5 64% 10 202 3 Quiet 6
Apr 5–15 13 11 160 14.5 61% 11 227 4 Quiet 6
May 9–19 18 15 194 12.9 65% 11 250 5 Quiet 6
Jun 14–24 25 16 172 10.8 64% 10 279 7 Quiet 7
Jul 16–26 28 11 133 12.1 60% 10 302 7 Quiet 8
Aug 16–26 28 10 117 11.7 57% 11 273 6 Peak 8
Sep 13–22 22 11 147 13.4 67% 9 220 4 Moderate 7
Oct 9–17 17 13 152 11.7 72% 9 183 3 Quiet 7
Nov 4–11 9 13 175 13.5 78% 9 137 1 Moderate 5
Dec 1–7 5 16 230 14.4 79% 9 112 1 Busy 3

UV Index in Annecy by Month

UV index in Annecy peaks at 7 (high) in July, dropping to 1 (low) in December. June, July, August have high UV — SPF 30+ and sunglasses recommended.

Best months in detail

August

8/10

16–26°C (feels 28°C) · 10 rain days (117h) · 273 sun hours · 57% humidity · Peak crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)

July

8/10

16–26°C (feels 28°C) · 11 rain days (133h) · 302 sun hours · 60% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

September

7/10

13–22°C · 11 rain days (147h) · 220 sun hours · 67% humidity · Moderate crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (high)

Every month

Show the other 9 months in detail

January

4/10

0–7°C (feels 4°C) · 12 rain days (173h) · 130 sun hours · 75% humidity · Quiet crowd · UV 1 (low)

February

5/10

2–10°C (feels 8°C) · 12 rain days (145h) · 152 sun hours · 68% humidity · Quiet crowd · UV 2 (low)

March

6/10

3–13°C (feels 10°C) · 13 rain days (150h) · 202 sun hours · 64% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

April

6/10

5–15°C (feels 13°C) · 11 rain days (160h) · 227 sun hours · 61% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)

May

6/10

9–19°C · 15 rain days (194h) · 250 sun hours · 65% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)

June

7/10

14–24°C (feels 25°C) · 16 rain days (172h) · 279 sun hours · 64% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

October

7/10

9–17°C · 13 rain days (152h) · 183 sun hours · 72% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

November

5/10

4–11°C (feels 9°C) · 13 rain days (175h) · 137 sun hours · 78% humidity · Moderate crowd · UV 1 (low)

December

3/10

1–7°C (feels 5°C) · 16 rain days (230h) · 112 sun hours · 79% humidity · Busy crowd · UV 1 (low)

Frequently asked questions about visiting Annecy

When is the best time to visit Annecy?

August is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 16–26°C (10 rainy days). The top three months by score are August, July, September.

What is the worst time to visit Annecy?

December is the lowest-scoring month (3/10). Typical conditions: 1–7°C (16 rainy days).

When are crowds lowest in Annecy?

Search-interest seasonality (Google Trends 2021-2025) is lowest in January and peaks in August. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.

Which months in Annecy have good weather but fewer tourists?

July (climate 8/10, crowd index 24) and June (climate 7/10, crowd index 16) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Annecy by month?

UV peaks at 7 (high) in July and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 4, May 5, Jun 7, Jul 7, Aug 6, Sep 4, Oct 3, Nov 1, Dec 1.

What is the UV index in Annecy in July?

July is the peak UV month in Annecy, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.

How high can UV get in Annecy on the sunniest days?

Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. June is the worst case: typical days average UV 7 (high), but the top 10% of days reach UV 9 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, July, August, September, October. Plan sun protection for the worst case, not the average.

Is air quality in Annecy bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 5 months: January, February, March, November, December. The worst month is February with a typical-day mean of 15 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 25 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.