Weather in Florida in January

How January compares

January is the 12th warmest month of the year in Florida. Within United States it is 3rd of 6 (United States in January). Against London's average high of 7.4°C in January, Florida is 14.5°C warmer by day and 12.4°C warmer at night.

Daytime and night-time in January

The typical January day in Florida peaks at 21.9°C, but that is an average: the warmest 10% of days reach 26.1°C or more. Roughly 1 in 4 days top 25°C. Nights average 14.6°C; one night in ten drops to 8.4°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest January day here reached 29.4°C (2017-01-03) and the coldest night -2.5°C (2010-01-10).

Rain in January

Some rain (4-8 rainy days): about 7 days with 1 mm or more, 54 mm in total. Year to year it varies a lot - the wettest January was 2016 with 178 mm, the driest 2006 with 6 mm. Humidity averages 72%.

Sea temperature in January

The sea averages 23.9°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.1°C to 24.7°C. For the warmest sea here, come in August (29.9°C).

Sunshine and daylight

Around 5.1 hours of sunshine a day (estimated from cloud cover), 10.5 hours of daylight: the sun rises about 07:19 and sets about 17:50 local time in mid-January. Average cloud cover is 52%.

Is January a good time to visit Florida?

It is a reasonable choice: warm days. The best months for Florida on our scoring are March, April, November; months averaging 25°C or more: Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.

Much warmer than London, without summer heat

January is Florida's coolest month, yet its average daytime high of 21.9°C compares favourably with London's 7.4°C. That makes it well suited to travellers who want to spend time outdoors without strong heat dictating the day. Days reach 25°C about 25% of the time, so properly warm afternoons are possible rather than dependable. The main packing trap is assuming that mild averages mean every evening stays warm: the coldest 10% of nights fall to 8.4°C or below. Bring layers and a jacket as well as lighter clothes, and keep outdoor plans flexible when a cooler spell arrives.

Useful sunshine, with room for showers

Expect some rain rather than an entirely dry holiday. About 7 days have measurable rain, so it makes sense to carry a light waterproof and leave room to rearrange outdoor plans. That figure does not tell you how long a wet spell will last, so do not assume rain will always pass quickly. Sunshine averages 5.1 hours within 10.5 hours of daylight: there is useful time outside, but clear skies are not guaranteed throughout the day. Plan daylight-dependent activities before evening, and use sunnier periods for time by the water. Sun protection still belongs in your bag.

Swimming is realistic, but weigh up the journey

At an average 23.9°C, the sea is warm enough for swimming, though how comfortable you feel getting out will depend on the day's air temperature. The year-to-year sea temperature range of 23°C to 25°C supports packing swimwear, without treating January as a guaranteed beach holiday. With a flight from London of about 9 h 30 min, this is a long-haul commitment for warmth rather than dependable heat. It suits travellers happy to mix swimming with other outdoor time. If your timing is flexible, March, April and November offer a better overall weather balance.