Your August weather guide

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Weather in Nice in August

August is a good time to visit Nice if you want hot days and comfortable sea swimming, but less suitable if you prefer cool weather for walking. Average daytime highs are 27.5°C, nights stay around 20.8°C, and the sea averages 24.8°C. For a UK traveller, the main benefit is reliable warmth; the catch is that evenings offer limited relief from the heat. Expect plenty of sunshine, but leave room for occasional rain.

Long-term climate averages for Nice, not a forecast · 1991-2020

Nice, month by month

Your snapshot

At a glance

The useful details for Nice.

Average daytime high
27.5°C
9 in 10 days stay below 30°C
Average night-time low
20.8°C
coldest 10% of nights: 18°C or lower
Compared with London
+6.1°C
London averages 21.4°C in August
Sea temperature
24.8°C
year to year: 24°C to 26°C
Sunshine per day (est.)
8.8h
64% of 13.8 h of daylight
Rainy days (1 mm+)
6
27 mm over the month
Humidity
74%
Days over 25°C
87%
13% over 30°C
Record high 1991-2020
34.6°C
2003-08-07
Record low 1991-2020
13.4°C
1995-08-29
Flight from London
≈ 2 h
999 km, short-haul (estimate for a direct flight)

Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.

How August compares

August is the 1st warmest month of the year in Nice and ranks 96th of 134 destinations we compare for August - see where else is hot in August. Within France it is 1st of 2 (France in August). Against London's average high of 21.4°C in August, Nice is 6.1°C warmer by day and 7.3°C warmer at night.

Daytime and night-time in August

The typical August day in Nice peaks at 27.5°C, but that is an average: the warmest 10% of days reach 30.3°C or more. About 87% of days top 25°C and 1 in 8 pass 30°C. Nights average 20.8°C; one night in ten drops to 18.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest August day here reached 34.6°C (2003-08-07) and the coldest night 13.4°C (1995-08-29).

Rain in August

Some rain (4-8 rainy days): about 6 days with 1 mm or more, 27 mm in total. Year to year it varies a lot - the wettest August was 1995 with 80 mm, the driest 2017 with 1 mm. Humidity averages 74%.

Sea temperature in August

The sea averages 24.8°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.9°C to 26.3°C. This is the warmest the sea gets here all year.

Sunshine and daylight

Around 8.8 hours of sunshine a day (estimated from cloud cover), 13.8 hours of daylight: the sun rises about 06:36 and sets about 20:35 local time in mid-August. Average cloud cover is 36%.

Is August a good time to visit Nice?

Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Nice on our scoring are July, August, June; months averaging 25°C or more: Jul, Aug.

Warm days, with little need for evening layers

Plan around the heat rather than assuming every afternoon will feel comfortable for a long walk. Days reach 30°C on 13% of occasions, while humidity of 74% can make the warmth feel sticky. Put more active plans in the morning, take breaks around midday and choose somewhere with air conditioning if warm bedrooms bother you. Lightweight, breathable clothes should do most of the work, with a light layer for cooler spells rather than heavy knitwear. Evenings generally suit eating outside without much extra clothing. August works best if you enjoy warmth, not if you need crisp nights to sleep well.

The sea is a strong reason to go

The sea is warm enough for swimming rather than just a quick cooling dip. Its average temperature makes August a sensible choice if cold water usually puts you off, and the year-to-year range of 24°C to 26°C suggests that this is not dependent on an unusually hot summer. Pack swimwear alongside your everyday summer clothes, and build in time by the water rather than filling every day with walking. Warm water does not tell you what waves or local conditions will be like, so judge those on the day. Sun protection still matters when swimming, particularly around the middle of the day.

Mostly outdoor weather, but keep plans flexible

With about 8.8 hours of sunshine across 13.8 hours of daylight, August gives you plenty of scope for outdoor plans without needing to use the hottest part of the afternoon. Rain is still part of the picture: about 6 rainy days means a completely dry stay is not something to count on. Bring a compact waterproof and keep some plans easy to rearrange, rather than packing as though every day will be cloudless. The balance favours a summer holiday outdoors, but a forecast check before committing to a full day outside is sensible. Sunshine averages are not a promise for your particular week.

A little perspective

Nice through the year

August is highlighted. See how it compares with the rest of the year.

Monthly climate averages

Swipe sideways on a phone; the month stays in view.

Nice monthly climate averages, 1991-2020; August is the selected month.
MonthDayNightSeaSun/dayRain mmRainy daysDays 25°C+
January11.6°C5.1°C13.9°C4.56670%
February12.1°C4.8°C13.3°C5.26080%
March14.6°C6.9°C13.4°C6.16380%
April16.9°C9.5°C14.4°C6.382100%
May20.6°C13.4°C17.4°C6.864106%
Junebest24.4°C17.5°C21.1°C8.448842%
Julybest27.3°C20.3°C23.9°C9.926685%
AugustSelectedbest27.5°C20.8°C24.8°C8.827687%
September23.6°C17.4°C22.7°C6.874829%
October19.5°C13.8°C20.2°C4.811091%
November15.3°C9.5°C17.7°C4.1134100%
December12.4°C6.3°C15.5°C4.28480%

Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.

Day, night and sea

Monthly average temperatures, 1991-2020

  • Day
  • Night
  • Sea
Bars show average daytime highs and night-time lows; circles mark the average sea temperature. Same scale for every month. Exact values are in the table.

Best months here

On warmth, low rainfall and sunshine, start with these.

Keep exploring

Similar in August

Closest matches on daytime temperature, sea temperature and sunshine, in other countries.

A little more detail

Nice in August FAQs

Plain answers, grounded in the averages.

Is Nice hot in August?

Nice is hot in August: the average daytime high is 27.5°C and nights average 20.8°C. About 87% of August days reach 25°C or more.

Can you swim in the sea in Nice in August?

The sea around Nice averages 24.8°C in August, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 24°C to 26°C depending on the year.

How much does it rain in Nice in August?

Nice sees about 6 rainy days (1 mm or more) and 27 mm of rain in a typical August. The wettest August between 1991 and 2020 was 1995 (80 mm) and the driest was 2017 (1 mm).

How sunny is Nice in August?

Nice gets around 8.8 hours of sunshine a day in August out of 13.8 hours of daylight (estimated from average cloud cover).

How does Nice compare with the UK in August?

Nice is on average 6.1°C warmer than London by day in August (27.5°C against 21.4°C).

What is the hottest August on record in Nice?

Between 1991 and 2020 the hottest August day in Nice reached 34.6°C on 2003-08-07, and the coldest night dropped to 13.4°C on 1995-08-29.

How much warmer is Nice than London in August?

Nice has an average daytime high of 27.5°C, compared with 21.4°C in London, a difference of 6.1°C. That is a noticeable step up in warmth: pack for sustained summer heat rather than simply bringing your usual UK August clothes.

Is August the warmest month in Nice?

Yes, August ranks as Nice's warmest month. It suits travellers who prioritise hot weather and warm sea swimming. If heat makes you tired or uncomfortable, that ranking is more of a caution than a selling point, especially with warm nights too.

About these averages

ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020

Averages computed from daily values at Nice. Sea temperature from the nearest 5 km sea cell, 3.2 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather