Pattaya's Climate Month by Month: When to Come and What the Rainy Season Really Is Like

Month-by-month table of temperatures, sea conditions, rainfall and humidity. What the "rainy season" really means day by day and which months are the most comfortable for living in Pattaya.

For tomorrow's forecast, you're better off checking your phone. This article is about something else: what Pattaya's climate is like overall and how it feels if you're staying for a season or a few years rather than a week.

In brief

Pattaya has a tropical climate with three seasons: hot and dry from December to February, hot and humid in March and April, hot and rainy from May to November. Note that the word "hot" appears in all three — it's never cold here. The difference between the warmest and the coolest month is less than three degrees.

• The best months to live here: November to February
• The hottest: April and May
• The rainiest: September and October
• The sea stays warm year-round: from 27 to 31 °C

Month by month

Around 1106 mm of rain falls over the year across roughly 82 rainy days — on average one day in four, although that average conceals a wide spread: a day and a half in December and fourteen in October.

What "rainy season" actually means

A common misconception is a week of grey skies, the way it goes in autumn in Northern Europe. Pattaya is nothing like that.

A tropical downpour usually arrives in the afternoon, pours down like a wall for anywhere from half an hour to two hours, and then the sky clears. Mornings are generally sunny. That's exactly why the table lists "14 rainy days" for October: not fourteen ruined days, but fourteen days on which it rained at least once.

What really changes in the rainy season:

• The sea turns murky and algae appear, especially on the city beaches
• Humidity stays high, and laundry dries slowly
• September and October bring flooded streets — the water drains away within an hour or two, but while it's standing, driving is difficult
• Everything gets cheaper: both hotels and short-term rentals

Season by season

November to February: the best time

There's hardly any rain, humidity drops, and at night the temperature can fall to 23 °C — cool by local standards, and some people sleep with the window open instead of the air conditioning. This is high season: the city is full, rentals are more expensive, and at the waterfront restaurants you need to book a table.

If you're deciding when to come and view apartments, come now. Just remember that you're seeing Pattaya at its best, while you'll be living here for the other nine months too.

March to May: peak heat

April is the hottest month, averaging 33 °C during the day, and the humidity makes it feel even hotter. In mid-April comes Songkran, the Thai New Year: for several days the whole city douses itself with water, and it's the one time when the heat actually plays into the celebration.

The first rains arrive in May, and they come as a relief.

June to August: bearable

Contrary to expectations, these aren't the worst months. There's less rain than in September, the temperature is lower than in April, and there are fewer tourists. Many permanent residents consider this a perfectly decent time of year.

September and October: peak rain

These two months account for more than a third of the year's rainfall. If you find humidity hard to bear, these are the weeks to plan a trip home or to other parts of Asia.

The sea

The Gulf of Thailand is warm year-round: 27–28 °C in December and January, 30–31 °C in April and May. The notion of "too cold to swim" doesn't exist here in any month.

Sources differ by a degree or two, because measurements are taken at different points in the gulf. The practical conclusion doesn't change: you can swim on any day of the year, and the difference between "winter" and "summer" is the difference between a warm bath and a very warm one.

Water clarity varies more than temperature. The water is clearer in the dry season and the further south you go from the city centre. Our districts guide covers this in more detail.

What this means for your home

The climate affects your choice of apartment more than it seems during a viewing.

• The air conditioning runs for most of the year. Budget for electricity costs: bills rise noticeably in the hot months. In a rental, electricity is usually charged by the meter separately from the rent.
• Floor and orientation matter more than the view. West-facing windows heat up toward evening, and upper floors get warmer. A shaded balcony beats a beautiful but scorching one.
• Humidity is the main enemy. In a closed, unventilated apartment, mould can appear within a month. If you're leaving for a long time, leave the air conditioning on dehumidify mode or ask someone to air the place out.
• A beachfront position means salt. Metal, appliances and window frames wear out faster. Beautiful, but it requires upkeep.

If you're choosing a district with permanent living in mind, take a look at our guide to all eight districts of Pattaya — where it's quieter, where the water is cleaner and what's located where.

The key takeaway

Pattaya isn't a place where you wait for good weather. It's always warm here; the only question is how much moisture is in the air. The best months are November to February, the worst are September and October, and everything in between is comfortable enough — provided you have air conditioning and don't plan your afternoons at the height of the rainy season.

Temperature and precipitation figures are long-term averages based on data from the Thai Meteorological Department.

See also

• Buy an apartment in Pattaya
• New developments in Pattaya

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.