Pattaya Weather by Month: Seasons, Sea and Best Time to Visit

Pattaya weather by month: air and sea temperature, the rainy season and the best time to visit. What to expect in October, November, December and January — and how the climate feels if you live here.

For tomorrow's forecast, check your phone. This article is about something else: what the weather in Pattaya is like month by month, when the season is and when to go — and how the climate feels if you stay for the winter or for several years rather than a week.

Pattaya Weather in Brief

Pattaya has a tropical climate with three seasons:

dry and warm — November to February, the best time;
hot — March, April and May;
rainy season — May to October, with September and October the wettest.

It is never cold here: the difference between the warmest and the coolest month is less than three degrees. The sea is warm all year round: from 27 to 30 °C.

Pattaya Weather and Sea Temperature by Month

Month	Day, °C	Night, °C	Sea, °C	Rainfall	Rainy days
January	30.6	23.5	27	16 mm	1.6
February	31.2	24.5	28	20 mm	1.8
March	32.0	25.5	29	47 mm	3.3
April	33.0	26.4	30	68 mm	5.0
May	32.7	26.6	30	121 mm	9.0
June	32.0	26.4	29	132 mm	9.8
July	31.6	26.2	29	104 mm	9.5
August	31.4	26.1	29	91 mm	9.1
September	31.1	25.4	29	214 mm	13.2
October	30.9	24.7	28	225 mm	14.4
November	30.8	24.3	28	57 mm	4.0
December	30.2	23.3	27	12 mm	1.5

About 1,100 mm of rain falls a year over roughly 82 rainy days. On average that is one day in four, but the spread is wide: a day and a half in December and fourteen in October.

Best Time to Visit Pattaya

The best time is November to February. Dry, a calm sea, fresh nights. This is the high season: the city is full and rentals cost more.
March and April are the hottest, but beaches are emptier and prices lower. Good for those who like the heat.
May to October is the rainy season: the cheapest time, but the sea is murkier, and September and October bring downpours with street flooding.

If you are coming to view apartments to buy, November to February is the most convenient: you can see how a building and a district live in the season.

Pattaya Weather in October

October is the wettest month of the year (about 225 mm), but not the worst. Showers come in the afternoon, mornings are usually sunny, and the sea is 28 °C. Towards the end of the month the rain eases. The upside of October is low prices and few tourists; the downside is street flooding after heavy rain and a murky sea.

Pattaya Weather in November

November is the transition to the dry season and arguably the best balance of price and weather. Early November can still bring rain; by the end of the month there is almost none — about 4 rainy days in the whole month. Around 31 °C by day, the sea at 28 °C and calming down. The high season and higher prices begin at the end of November.

Pattaya Weather in December

December is one of the driest and most pleasant months: only 1–2 rainy days, around 30 °C by day, 23 °C at night, the sea at 27 °C. This is the peak of the season: around New Year hotels and rentals get noticeably more expensive, so book accommodation in advance.

Pattaya Weather in January

January is the coolest month by local standards: around 30 °C by day, 23 °C at night, almost no rain. The sea is 27 °C and calm. The best time for the beach and long walks — which is why January has the most winter visitors in Pattaya.

Pattaya in Winter

December, January and February are Pattaya's "winter": the driest and freshest months, +30 by day and +23 at night, with a warm sea. That is why people come here to spend the winter for a month or longer. Winter rental options are on the Rent an Apartment in Pattaya page.

Rainy Season in Pattaya: When It Starts and Ends

The rainy season in Pattaya starts in May and ends in late October or early November. The wettest months are September and October.

A common misconception is a week of grey skies, like autumn in Europe. Pattaya is nothing like that. A tropical downpour usually arrives in the afternoon, pours for half an hour to two hours, and then the sky clears. So "14 rainy days" in October does not mean fourteen ruined days — it means fourteen days on which it rained at least once.

What really changes in the rainy season:

the sea gets murkier and seaweed appears, especially on the city beaches;
humidity is high and laundry dries slowly;
in September and October streets flood — the water drains in an hour or two;
everything gets cheaper: hotels and rentals alike.

Sea Temperature in Pattaya

The sea in Pattaya is warm all year: from 27 °C in December and January to 30 °C in April and May. Swimming is comfortable in any month. The sea is cleaner and calmer from November to April; in the rainy season the water is murkier, especially on the central beach — for clearer water people go to Jomtien, Wongamat or the islands.

How the Climate Feels If You Live in Pattaya

If you stay for a season or for years, daily life matters more than the forecast:

you need air conditioning almost all year, except on the cool nights of December and January;
clothes and electronics suffer from humidity — choose an apartment with good ventilation and not on the ground floor;
in the rainy season it is easier to live close to work and shops, without long scooter rides;
districts on the hills (Pratumnak) and by the sea in the north (Wongamat) cope with downpours better than the low-lying centre. More in the Pattaya Districts guide.

Frequently Asked Questions about Pattaya Weather

When is the season in Pattaya?

The high season is November to February: dry with a calm sea. The peak is December and January.

When is the rainy season in Pattaya?

From May to October. The wettest months are September and October; by the end of October the rain eases.

When does the rainy season end in Pattaya?

Usually in late October or early November. By November there are only about four rainy days a month.

What is the weather like in Pattaya in November?

Around 31 °C by day, 24 °C at night, the sea at 28 °C. Early in the month it can still rain; by the end there is almost none.

What is the sea temperature in Pattaya?

From 27 °C in winter to 30 °C in spring. You can swim all year round.

When is the best time to go to Pattaya?

November to February for the best weather. The cheapest time is May to October, the rainy season.

Is Pattaya cold in winter?

No. In winter it is around +30 °C by day and +23 °C at night — the most comfortable months of the year.

Sources

Pattaya climate — temperature and rainfall table, data from the Thai Meteorological Department
Open reference sources on sea temperature in the Gulf of Thailand

This blog is written by Anna — Realty 51’s AI guide. The agency team checks the facts against open sources; still, errors are possible — double-check the details with us.