Your September weather guide

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Weather in Varadero in September

September suits a Varadero holiday if you want hot weather and warm swimming water, but not if reliable sunshine is your priority. Daytime temperatures average around 30°C, the sea is about 29°C and there are roughly 23 rainy days. For a UK traveller, that means a clear change from autumn temperatures at home, with a substantial wet-weather catch. Go prepared to keep your plans flexible rather than expecting every day to be spent outdoors.

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

Varadero, month by month

Your snapshot

At a glance

The useful details for Varadero.

Average daytime high
29.8°C
9 in 10 days stay below 31°C
Average night-time low
25.7°C
coldest 10% of nights: 25°C or lower
Compared with London
+11.2°C
London averages 18.6°C in September
Sea temperature
29.4°C
year to year: 29°C to 30°C
Sunshine per day (est.)
4.6h
38% of 12.1 h of daylight
Rainy days (1 mm+)
23
152 mm over the month
Humidity
81%
Days over 25°C
100%
45% over 30°C
Record high 1991-2020
32.4°C
1998-09-03
Record low 1991-2020
23.3°C
2018-09-07
Flight from London
≈ 10 h
7414 km, long-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 September compares

September is the 4th warmest month of the year in Varadero and ranks 19th of 134 destinations we compare for September - see where else is hot in September. Against London's average high of 18.6°C in September, Varadero is 11.2°C warmer by day and 14.5°C warmer at night.

Daytime and night-time in September

The typical September day in Varadero peaks at 29.8°C, but that is an average: the warmest 10% of days reach 30.9°C or more. About 100% of days top 25°C and 1 in 2 pass 30°C. Nights average 25.7°C; one night in ten drops to 24.7°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 32.4°C (1998-09-03) and the coldest night 23.3°C (2018-09-07).

Rain in September

Wet (more than 8 rainy days): about 23 days with 1 mm or more, 152 mm in total. Year to year it varies a lot - the wettest September was 2017 with 352 mm, the driest 2004 with 79 mm. Humidity averages 81%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in September

The sea averages 29.4°C - warm enough to swim (22°c+). Depending on the year it ranges from 29.1°C to 29.7°C. For the warmest sea here, come in August (29.6°C).

Sunshine and daylight

Around 4.6 hours of sunshine a day (estimated from cloud cover), 12.1 hours of daylight: the sun rises about 07:12 and sets about 19:29 local time in mid-September. Average cloud cover is 62%.

Is September a good time to visit Varadero?

It is a reasonable choice: hot days but expect showers. The best months for Varadero on our scoring are February, March, April; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Hot days, with little relief at night

Varadero feels much hotter than London in September, with average daytime highs around 11°C higher. Temperatures reach 30°C on 45% of days, so pack for sustained heat rather than occasional warm spells. Humidity averages 81%, adding to the sticky feel, while average overnight lows around 26°C mean evenings offer limited relief. Loose, lightweight clothes are a better fit than heavy layers, and air-conditioned accommodation is a sensible priority if you struggle to sleep in warmth. Keep strenuous outdoor plans away from midday and leave room for breaks. This month suits heat lovers better than travellers who prefer cooler days for being active.

Rain is the main compromise

With about 23 rainy days, wet weather needs to be part of your plans rather than treated as an unlikely interruption. That does not mean continuous rain, but the figures do not promise brief showers or a reliably dry part of the day either. Sunshine averages about 4.6 hours across 12.1 hours of daylight, so long daylight hours should not be mistaken for long spells of sun. Pack a light waterproof and keep outdoor plans easy to rearrange. If you are committing to the roughly 10-hour flight from London mainly for dependable sunbathing weather, September is a less convincing choice than its warm temperatures might suggest.

A little perspective

Varadero through the year

September 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.

Varadero monthly climate averages, 1991-2020; September is the selected month.
MonthDayNightSeaSun/dayRain mmRainy daysDays 25°C+
January25.0°C20.7°C25.3°C5.931656%
Februarybest25.7°C20.9°C25.1°C7.323470%
Marchbest26.6°C21.5°C25.4°C7.823577%
Aprilbest28.1°C22.8°C26.2°C8.040794%
May28.9°C24.1°C27.2°C7.311314100%
June29.8°C25.4°C28.5°C4.914519100%
July30.4°C26.0°C29.3°C6.010018100%
August30.6°C26.1°C29.6°C5.412820100%
SeptemberSelected29.8°C25.7°C29.4°C4.615223100%
October28.4°C24.8°C28.4°C5.01131898%
November26.6°C23.2°C27.0°C5.950983%
December25.6°C21.8°C26.0°C6.026669%

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 September

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

A little more detail

Varadero in September FAQs

Plain answers, grounded in the averages.

Is Varadero hot in September?

Varadero is hot in September: the average daytime high is 29.8°C and nights average 25.7°C. About 100% of September days reach 25°C or more.

Can you swim in the sea in Varadero in September?

The sea around Varadero averages 29.4°C in September, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 29°C to 30°C depending on the year.

How much does it rain in Varadero in September?

Varadero sees about 23 rainy days (1 mm or more) and 152 mm of rain in a typical September. The wettest September between 1991 and 2020 was 2017 (352 mm) and the driest was 2004 (79 mm).

How sunny is Varadero in September?

Varadero gets around 4.6 hours of sunshine a day in September out of 12.1 hours of daylight (estimated from average cloud cover).

How does Varadero compare with the UK in September?

Varadero is on average 11.2°C warmer than London by day in September (29.8°C against 18.6°C).

What is the hottest September on record in Varadero?

Between 1991 and 2020 the hottest September day in Varadero reached 32.4°C on 1998-09-03, and the coldest night dropped to 23.3°C on 2018-09-07.

Is the sea warm enough for swimming in September?

Yes. The sea averages 29.4°C, with a year-to-year range of 29°C to 30°C. That makes water temperature a strong reason to choose September if you like warm swims, though it says nothing about conditions on any particular day.

Which months should I consider instead?

February, March and April are the strongest months overall for Varadero's holiday weather. They are worth considering if your dates are flexible. September makes more sense when hot days and warm sea temperatures matter more to you than avoiding frequent rain.

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 Varadero. Sea temperature from the nearest 5 km sea cell, 2.8 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