Best time to visit Monaco
Re-score for me — drag the dial — every chart recolours live for your heat & sea limits 27°C · sea 29°C
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.
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.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
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 Monaco
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Monaco).
- 1
Monaco Formula 1 Walking Tour - The Inside Track Monaco F1 - 2
Monaco Private Tour: The Insider Route Most Visitors Never Find - 3
TOP Monaco : Private Guided Tour with your mobile - 4
Full Day Tour of Nice Eze and Monaco from Nice - 5
Private Transfer: Monaco to Nice Airport NCE in Luxury Van - 6
Private Transfer from Port Hercule to Monaco hotels
Last refreshed 2026-06-29.
Similar climatesMenton99% · Nice99% · Antibes98%
Other destinations with the most-alike year-round climate to Monaco (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 Monaco'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 | 5–12 | 10 | 5 | 68 | 13.6 | 64% | 12 | 169 | 1 | Quiet | 8 |
| Feb | 7–14 | 12 | 5 | 49 | 9.8 | 63% | 14 | 186 | 2 | Quiet | 8 |
| Mar | 8–15 | 13 | 6 | 69 | 11.5 | 58% | 16 | 224 | 3 | Quiet | 9 |
| Apr | 10–17 | 15 | 8 | 76 | 9.5 | 55% | 16 | 250 | 5 | Quiet | 9 |
| May | 14–21 | 21 | 8 | 92 | 11.5 | 62% | 14 | 276 | 6 | Quiet | 9 |
| Jun | 19–26 | 27 | 8 | 72 | 9.0 | 63% | 14 | 303 | 7 | Quiet | 9 |
| Jul | 22–29 | 31 | 2 | 22 | 11.0 | 58% | 14 | 331 | 8 | Quiet | 8 |
| Aug | 22–29 | 31 | 5 | 39 | 7.8 | 55% | 13 | 293 | 7 | Peak | 8 |
| Sep | 18–25 | 26 | 7 | 65 | 9.3 | 55% | 16 | 239 | 5 | Busy | 9 |
| Oct | 14–21 | 21 | 9 | 104 | 11.6 | 66% | 14 | 204 | 3 | Moderate | 8 |
| Nov | 10–17 | 15 | 7 | 68 | 9.7 | 63% | 14 | 174 | 2 | Peak | 8 |
| Dec | 6–13 | 11 | 8 | 96 | 12.0 | 68% | 12 | 161 | 1 | Busy | 7 |
UV Index in Monaco by Month
UV index in Monaco peaks at 8 (high) in July, dropping to 1 (low) in January. May, June, July, August have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
September
9/1018–25°C · 7 rain days (65h) · 239 sun hours · 55% humidity · Busy crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
June
9/1019–26°C (feels 27°C) · 8 rain days (72h) · 303 sun hours · 63% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)
April
9/1010–17°C (feels 15°C) · 8 rain days (76h) · 250 sun hours · 55% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
Every month
Show the other 9 months in detail
January
8/105–12°C (feels 10°C) · 5 rain days (68h) · 169 sun hours · 64% humidity · Quiet crowd · UV 1 (low)
February
8/107–14°C (feels 12°C) · 5 rain days (49h) · 186 sun hours · 63% humidity · Quiet crowd · UV 2 (low)
March
9/108–15°C (feels 13°C) · 6 rain days (69h) · 224 sun hours · 58% humidity · Quiet crowd · UV 3 (moderate)
May
9/1014–21°C · 8 rain days (92h) · 276 sun hours · 62% humidity · Quiet crowd · UV 6 (high)
July
8/1022–29°C (feels 31°C) · 2 rain days (22h) · 331 sun hours · 58% humidity · Quiet crowd · UV 8 (high) · sunniest 1 in 10 days reach 9 (very high)
August
8/1022–29°C (feels 31°C) · 5 rain days (39h) · 293 sun hours · 55% humidity · Peak crowd · UV 7 (high)
October
8/1014–21°C · 9 rain days (104h) · 204 sun hours · 66% humidity · Moderate crowd · UV 3 (moderate)
November
8/1010–17°C (feels 15°C) · 7 rain days (68h) · 174 sun hours · 63% humidity · Peak crowd · UV 2 (low)
December
7/106–13°C (feels 11°C) · 8 rain days (96h) · 161 sun hours · 68% humidity · Busy crowd · UV 1 (low)
Frequently asked questions about visiting Monaco
When is the best time to visit Monaco?
September is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 18–25°C (7 rainy days). The top three months by score are September, June, April.
What is the worst time to visit Monaco?
December is the lowest-scoring month (7/10). Typical conditions: 6–13°C (8 rainy days).
Is Monaco 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 Monaco?
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 Monaco have good weather but fewer tourists?
March (climate 9/10, crowd index 15) and April (climate 9/10, crowd index 12) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Monaco 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 Monaco in July?
July is the peak UV month in Monaco, 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 Monaco 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, June, July, September. Plan sun protection for the worst case, not the average.
Is air quality in Monaco bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 1 month: February. The worst month is February with a typical-day mean of 10 µg/m³ (fair); on the worst 10% of days PM2.5 reaches 17 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.