Same air-temperature band as the warm list, plus a sea of at least 22 °C. That single condition removes the Canaries, Madeira and Cape Town for most of the northern winter: all three are pleasantly warm and none of them are swimming.
Right now · September
26.6 °C by day and 43 mm of rain. About as good as this month gets.
Cairns and the reef coast: the dry season runs May to October, and the wet season doubles as cyclone season.
CAIRNS AERO · Bureau of Meteorology · 1991–2020 · Checked 2026-08-12
31.4 °C by day — warm, without being the warmest thing on the list.
Turkey's Mediterranean coast, sheltered by the Taurus range, with a long hot summer and a mild wet winter.
FINIKE, 81 km away · MGM / WMO CLINO · 1991–2020 · 21 of 30 years · Checked 2026-08-12
Inside the tropical-cyclone season, whatever the month's rainfall says.
The Dominican east coast: warm every month, driest in February and March, inside the Atlantic hurricane belt.
This month falls inside the basin's official tropical-cyclone season. A dry month is still a risky one — the two are unrelated, so we show them separately.
PUNTA CANA INTL · ONAMET · 1991–2020 · 8 of 30 years · Checked 2026-08-12
25.4 °C, but 96 mm of rain falls this month.
Subtropical Indian Ocean, warmest from December to March — which is also its cyclone season.
Rainfall is high enough to change what you do, not just what you pack.
PLAISANCE (MAURITIU, 36 km away · Mauritius Met Service · 1991–2020 · 20 of 30 years · Checked 2026-08-12
27.5 °C by day and 2 mm of rain. About as good as this month gets.
The southernmost of the big Greek islands, with a swimming season that runs a month longer at both ends.
HERAKLION · HNMS / WMO CLINO · 1991–2020 · 11 of 30 years · Checked 2026-08-12
The air is fine at 28.1 °C. The sea is 21.8 °C, which is not a swim.
The Adriatic coast: a short, reliable summer and a sea that stays warm well into September.
The water is below 22 °C, the point most northern-European swimmers stop calling it swimming. Fine for a walk on the beach; a shock in it.
SPLIT MARJAN · DHMZ / WMO CLINO · 1991–2020 · Checked 2026-08-12
The air is fine at 27.5 °C. The sea is 21.7 °C, which is not a swim.
Central Mediterranean, warm and dry from June to October, and routinely mis-sold as winter sun.
The water is below 22 °C, the point most northern-European swimmers stop calling it swimming. Fine for a walk on the beach; a shock in it.
COZZO SPADARO, 103 km away · Malta Met Office / WMO CLINO · 1991–2020 · 14 of 30 years · Checked 2026-08-12
The air is fine at 26.6 °C. The sea is 21.5 °C, which is not a swim.
Subtropical Atlantic, 100 km off the Sahara: warm every month of the year, and washed by a current that never warms up with it.
The water is below 22 °C, the point most northern-European swimmers stop calling it swimming. Fine for a walk on the beach; a shock in it.
STA. CRUZ DE TENERIFE · AEMET · 1991–2020 · Checked 2026-08-12
Inside the tropical-cyclone season, whatever the month's rainfall says.
The central Philippines, sheltered from the worst of the typhoon track, driest from February to May.
This month falls inside the basin's official tropical-cyclone season. A dry month is still a risky one — the two are unrelated, so we show them separately.
Rainfall is high enough to change what you do, not just what you pack.
TAGBILARAN, 73 km away · PAGASA · 1991–2020 · 15 of 30 years · Checked 2026-08-12
Inside the tropical-cyclone season, whatever the month's rainfall says.
Koh Samui and its neighbours run on the opposite calendar: their wettest month is November, when the Andaman side has dried out.
This month falls inside the basin's official tropical-cyclone season. A dry month is still a risky one — the two are unrelated, so we show them separately.
Rainfall is high enough to change what you do, not just what you pack.
KO SAMUI · TMD · 1991–2020 · 24 of 30 years · Checked 2026-08-12
The air is fine at 23.7 °C. The sea is 20.8 °C, which is not a swim.
An Atlantic island with almost no seasons: the difference between its coolest and warmest month is under 8 °C.
The water is below 22 °C, the point most northern-European swimmers stop calling it swimming. Fine for a walk on the beach; a shock in it.
FUNCHAL/S.CATARINA · IPMA · 1991–2020 · 19 of 30 years · Checked 2026-08-12
35.3 °C and almost no rain. Hot enough that the middle of the day is indoors.
Trincomalee and Arugam Bay, in the rain shadow of the southwest monsoon: dry exactly when the other coast is not.
Daytime maxima above 34 °C. The middle of the day is for indoors, and that is true even where the sea is perfect.
CHINA BAY · Sri Lanka DoM · 1991–2020 · 9 of 30 years · Checked 2026-08-12
Inside the tropical-cyclone season, whatever the month's rainfall says.
Caribbean Mexico, with the driest, clearest weather from February to April and a hurricane season that closes the autumn.
This month falls inside the basin's official tropical-cyclone season. A dry month is still a risky one — the two are unrelated, so we show them separately.
Rainfall is high enough to change what you do, not just what you pack.
CANCUN · CONAGUA / WMO CLINO · 1991–2020 · 20 of 30 years · Checked 2026-08-12
We show at most two places per country so one country cannot fill the list.
A ranking that will not show its criteria is an opinion. These are ours.
Warm days mean a mean daily maximum of 25–33 °C, scoring nothing below 20 °C or above 36 °C. The upper bound is not a formality: Dubai in July is 41 °C, and a list that treats hotter as better puts it first.
Swimmable means a sea of at least 22 °C. There is no meteorological standard for this — it is the convention northern-European travel publishers use, and we are telling you so rather than implying otherwise.
The criteria multiply rather than add, so a perfect air temperature cannot compensate for a cold sea. That is the whole reason the warm list and the swimming list are two separate lists.
Snow reliability is classified against the 100-day rule (Abegg 1996, after Föhn 1990): snow-reliable means at least 30 cm of cover on at least 100 days between 1 December and 15 April, in seven winters out of ten, with the line at about 1,200 m in the Swiss Alps. We classify against that rule and cite it; we do not compute it, because no free dataset carries per-resort snow depth.
Aurora is ranked on corrected geomagnetic latitude, not geographic latitude, and on median winter cloud. The oval sits at roughly 65–70° geomagnetic and moves about 2° equatorward per unit of Kp.
Tropical-cyclone seasons are applied separately from rainfall. A peak month is excluded outright; a shoulder month is capped no matter how dry it is.
Temperature and rainfall are 1991–2020 monthly normals computed from NOAA's Global Historical Climatology Network station records — the station used for each destination is named on its card, along with how far away it is. Sea-surface temperature comes from NOAA OISST v2.1 over the same period. Rain days count days with at least 2.5 mm.
These are thirty-year averages, not a forecast. They tell you what a month is usually like, never what next Tuesday will be.
Almost always the sea. The Canaries in January are 21 °C in the air and 19 °C in the water — a genuine answer to "somewhere warm" and a bad answer to "somewhere I can swim". Rather than pick one meaning and be wrong for half of you, we run two lists.
Because for about half of these places the town temperature is the wrong number. Chamonix's valley sits at 1,035 m and is often green in January while its lifts reach 3,842 m. The elevation pair tells you what you actually need to know; a valley temperature would just mislead you confidently.
December has the most hours of darkness and the worst odds per hour. Geomagnetic activity peaks around the equinoxes — the Russell–McPherron effect — so March and September–October are roughly twice as likely to deliver. If you can only travel in December you will still see them; you will just need more nights.
No. Every number here is a 1991–2020 average from a named weather station. They describe what a month is usually like. For the next two weeks, use a forecast.
Usually because there is no weather station near it with a long enough record, and we would rather leave a place out than publish a number measured 400 km away. Palawan is out for exactly that reason.
Otherwise January's warm list is eight Spanish islands. The cap is applied after ranking, so it never changes which place is better — only how many of one country's you see at once.
Take the destination and the month straight into the packing calculator — it will use the real forecast when you get close enough for one.