Warm sea

Where is the sea actually warm?

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

Ranked for this month

10 destinations in January

Punta Cana

Dominican RepublicStrong match

29 °C by day — warm, without being the warmest thing on the list.

The Dominican east coast: warm every month, driest in February and March, inside the Atlantic hurricane belt.

Sea
26.6 °C
Day
29 °C

PUNTA CANA INTL · ONAMET · 1991–2020 · 8 of 30 years · Checked 2026-08-12

Cebu

PhilippinesStrong match

30.8 °C by day and 82 mm of rain. About as good as this month gets.

The central Philippines, sheltered from the worst of the typhoon track, driest from February to May.

Sea
27.4 °C
Day
30.8 °C
Rain
82 mm

TAGBILARAN, 73 km away · PAGASA · 1991–2020 · 15 of 30 years · Checked 2026-08-12

Sri Lanka — southwest

Sri LankaStrong match

31.4 °C by day and 65 mm of rain. About as good as this month gets.

Colombo and the beaches south of it, dry from December to March and under the Yala monsoon from May to July.

Sea
27.7 °C
Day
31.4 °C
Rain
65 mm

COLOMBO · Sri Lanka DoM / WMO CLINO · 1991–2020 · 8 of 30 years · Checked 2026-08-12

Thailand — Gulf coast

ThailandStrong match

29.1 °C, but 94 mm of rain falls this month.

Koh Samui and its neighbours run on the opposite calendar: their wettest month is November, when the Andaman side has dried out.

Sea
27.8 °C
Day
29.1 °C
Rain
94 mm
  • A wet month

    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

Riviera Maya

MexicoStrong match

28.1 °C, but 107 mm of rain falls this month.

Caribbean Mexico, with the driest, clearest weather from February to April and a hurricane season that closes the autumn.

Sea
26.5 °C
Day
28.1 °C
Rain
107 mm
  • A wet month

    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

Goa

IndiaStrong match

32.6 °C by day and 6 mm of rain. About as good as this month gets.

India's west coast: bone dry from November to March, and one of the wettest places on this list in July.

Sea
27.5 °C
Day
32.6 °C
Rain
6 mm

GOA/PANJIM · IMD / WMO CLINO · 1991–2020 · 22 of 30 years · Checked 2026-08-12

Sri Lanka — east coast

Sri LankaStrong match

28.9 °C, but 120 mm of rain falls this month.

Trincomalee and Arugam Bay, in the rain shadow of the southwest monsoon: dry exactly when the other coast is not.

Sea
26.9 °C
Day
28.9 °C
Rain
120 mm
  • A wet month

    Rainfall is high enough to change what you do, not just what you pack.

CHINA BAY · Sri Lanka DoM · 1991–2020 · 9 of 30 years · Checked 2026-08-12

Thailand — Andaman coast

ThailandStrong match

32.7 °C by day — warm, without being the warmest thing on the list.

Phuket and Krabi, dry from December to March and under the southwest monsoon from May to October.

Sea
28.3 °C
Day
32.7 °C

PHUKET · TMD / WMO CLINO · 1991–2020 · 18 of 30 years · Checked 2026-08-12

Hurghada

EgyptGood match

22.3 °C by day — warm, without being the warmest thing on the list.

Red Sea reef coast with effectively no rain, a warm winter sea, and summers that pass 35 °C.

Sea
23.3 °C
Day
22.3 °C
Rain
4 mm

HURGUADA · EMA / WMO CLINO · 1991–2020 · 13 of 30 years · Checked 2026-08-12

Eilat

IsraelWorth knowing about

21.3 °C by day — warm, without being the warmest thing on the list.

The head of the Gulf of Aqaba — desert-dry, sheltered, and warm enough to swim in December.

Sea
22 °C
Day
21.3 °C
Rain
3 mm

ELAT · Israel Meteorological Service · 1991–2020 · 13 of 30 years · Checked 2026-08-12

We show at most two places per country so one country cannot fill the list.

How this list is made

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.

Sources

Questions

About these lists

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.

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