Best time to visit Cannes

Q: When is the best time to visit Cannes?

September is the highest-scoring month (10/10 on the Holiday Climate Index). Typical conditions: 18–26°C (6 rainy days). The top three months by score are September, June, May.

Q: What is the worst time to visit Cannes?

August is the lowest-scoring month (7/10, capped by extreme heat). Typical conditions: 22–30°C (4 rainy days).

Q: Is Cannes too hot in summer?

2 months (July, August) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.

Q: When are crowds lowest in Cannes?

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.

Q: Which months in Cannes have good weather but fewer tourists?

March (climate 9/10, crowd index 8) and April (climate 9/10, crowd index 19) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

Q: What is the UV index in Cannes by month?

UV peaks at 8 (high) in July and is lowest in January at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 5, May 6, Jun 7, Jul 8, Aug 7, Sep 5, Oct 3, Nov 2, Dec 1.

Q: What is the UV index in Cannes in July?

July is the peak UV month in Cannes, with a daily-peak UV index of 8 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.

Q: How high can UV get in Cannes 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. July is the worst case: typical days average UV 8 (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: April, May, June, July, August, September. Plan sun protection for the worst case, not the average.

Q: Is air quality in Cannes bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 3 months: February, March, December. The worst month is February with a typical-day mean of 12 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 22 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.

Re-score for me — drag the dial — every chart recolours live for your heat & sea limits 27°C · sea 29°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.

Sea feels bathtub at 29°C

26° strict 31° tolerant

Default 29 °C is the Beach Climate Index "bathtub" line (Morgan et al.) — where the sea stops being refreshing and starts feeling like a warm bath.

Saved to this browser. Changes update the strips below.

Sea temp cold <18° chilly 18–21° ideal 22–26° warm 27–28° bathtub 29–30° too warm ≥31°

Recent (2020-2024) 1991-2020 normal compare with the long-term normal

Recent · 2020-2024

Interest Google Trends 2021-2025 searches, not arrivals (?)

Sea Nov 2022 – Dec 2024 (?)

Day · avg daily high (?)

Night · avg overnight low (?)

Heatwaves · days/yr ≥35°C ETCCDI TX35 (?)

<12

Tropical nights · nights/yr ≥20°C ETCCDI TR20 — sleep killer (?)

<11025259

UV index · On a typical day around midday, UV is about this (?)

123567875321

On the sunniest 1 in 10 days, UV reaches this — and even higher

678986

PM2.5 air quality · on a typical day (?)

812987109978810

On the worst 1 in 10 days, PM2.5 reaches this — and even higher

142216131114131410131216

September 10/10 beach 10/10 urban feels 26°C (+2°C vs 1991-2020) · HCI 96/100

Day 26° · Night 18° · cools 8° at night 🌙 9 tropical nights/yr · peak 11 52% humidity 16 km/h wind 6 rain days (61h) 238h sun sea 24°C

Thermal 10

Sky 10

Rain 9

Wind 10

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

1991-2020 normal

Sea 1991-2020 normal monthly resolution

Day · avg daily high (?)

Night · avg overnight low (?)

September 9/10 beach 9/10 urban feels 24°C (−2°C vs 2020-2024) · HCI 93/100

Day 24° · Night 17° 61% humidity 16 km/h wind 6 rain days (73h) 245h sun sea 23°C

Thermal 9

Sky 10

Rain 9

Wind 10

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 Cannes

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

1Private sailing excursion & Provencal picnic5.00★ (51)from $142🔥 Selling fast
2Private Boat Tour Cannes Lerins Islands5.00★ (71)6hfrom $344🔥 Selling fast
3Private Full-Day Tour on the French Riviera from Cannes4.96★ (46)8hfrom $854🔥 Selling fast
45h Private excursion on the FrenchRiviera from Cannes or Nice4.82★ (17)5hfrom $581🔥 Selling fast
5Taste Cannes – A Full French Riviera Food Tour by Do Eat Better4.86★ (74)3h 30mfrom $113🔥 Selling fast
6Countryside and Wine Tasting Full-day tour from Cannes4.83★ (6)8h 30mfrom $154🔥 Selling fast
7Cannes Private Walking tour With A Professional Guide2hfrom $384🔥 Selling fast

Last refreshed 2026-05-27.

Similar climatesNice98% · Marseille94% · Barcelona93%

Other destinations with the most-alike year-round climate to Cannes (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 Cannes'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	6–13	10	5	70	14.0	64%	15	169	1	Quiet	8
Feb	7–15	12	5	56	11.2	63%	16	185	2	Quiet	8
Mar	8–16	13	7	71	10.1	58%	19	222	3	Quiet	9
Apr	10–18	16	6	85	14.2	56%	17	251	5	Quiet	9
May	14–22	21	9	84	9.3	61%	16	278	6	Quiet	9
Jun	19–26	27	7	65	9.3	61%	15	305	7	Quiet	9
Jul	22–30	31	3	19	6.3	55%	15	333	8	Quiet	7
Aug	22–30	32	4	35	8.8	50%	15	293	7	Peak	7
Sep	18–26	26	6	61	10.2	52%	16	238	5	Moderate	10
Oct	15–22	21	8	107	13.4	63%	15	201	3	Quiet	8
Nov	10–17	16	8	75	9.4	62%	15	173	2	Moderate	8
Dec	6–14	12	7	90	12.9	67%	14	164	1	Quiet	7

UV Index in Cannes by Month

UV index in Cannes peaks at 8 (high) in July, dropping to 1 (low) in January. June, July, August have high UV — SPF 30+ and sunglasses recommended.

Best months in detail

September

10/10

18–26°C · 6 rain days (61h) · 238 sun hours · 52% humidity · Moderate crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

June

9/10

19–26°C (feels 27°C) · 7 rain days (65h) · 305 sun hours · 61% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)

May

9/10

14–22°C · 9 rain days (84h) · 278 sun hours · 61% humidity · Quiet crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 7 (high)

Every month

Show the other 9 months in detail

January

8/10

6–13°C (feels 10°C) · 5 rain days (70h) · 169 sun hours · 64% humidity · Quiet crowd · UV 1 (low)

February

8/10

7–15°C (feels 12°C) · 5 rain days (56h) · 185 sun hours · 63% humidity · Quiet crowd · UV 2 (low)

March

9/10

8–16°C (feels 13°C) · 7 rain days (71h) · 222 sun hours · 58% humidity · Quiet crowd · UV 3 (moderate)

April

9/10

10–18°C (feels 16°C) · 6 rain days (85h) · 251 sun hours · 56% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

July

7/10

22–30°C (feels 31°C) · 3 rain days (19h) · 333 sun hours · 55% humidity · Quiet crowd · UV 8 (high) · sunniest 1 in 10 days reach 9 (very high)

August

7/10

22–30°C (feels 32°C) · 4 rain days (35h) · 293 sun hours · 50% humidity · Peak crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)

October

8/10

15–22°C · 8 rain days (107h) · 201 sun hours · 63% humidity · Quiet crowd · UV 3 (moderate)

November

8/10

10–17°C (feels 16°C) · 8 rain days (75h) · 173 sun hours · 62% humidity · Moderate crowd · UV 2 (low)

December

7/10

6–14°C (feels 12°C) · 7 rain days (90h) · 164 sun hours · 67% humidity · Quiet crowd · UV 1 (low)

Frequently asked questions about visiting Cannes

When is the best time to visit Cannes?

September is the highest-scoring month (10/10 on the Holiday Climate Index). Typical conditions: 18–26°C (6 rainy days). The top three months by score are September, June, May.

What is the worst time to visit Cannes?

August is the lowest-scoring month (7/10, capped by extreme heat). Typical conditions: 22–30°C (4 rainy days).

Is Cannes too hot in summer?

2 months (July, August) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.

When are crowds lowest in Cannes?

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 Cannes have good weather but fewer tourists?

March (climate 9/10, crowd index 8) and April (climate 9/10, crowd index 19) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Cannes by month?

UV peaks at 8 (high) in July and is lowest in January at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 5, May 6, Jun 7, Jul 8, Aug 7, Sep 5, Oct 3, Nov 2, Dec 1.

What is the UV index in Cannes in July?

July is the peak UV month in Cannes, with a daily-peak UV index of 8 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.

How high can UV get in Cannes 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. July is the worst case: typical days average UV 8 (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: April, May, June, July, August, September. Plan sun protection for the worst case, not the average.

Is air quality in Cannes bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 3 months: February, March, December. The worst month is February with a typical-day mean of 12 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 22 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.