Pattaya Weather: Seasons, Rain & Best Months to Visit
What Pattaya's weather is really like by season: heat, rain, sea conditions and air quality, plus how to plan beach days and boat trips around them.
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Last updated November 2026. Pattaya weather is hot and humid all year, with a clear rainy season and a cooler, drier stretch. Use this guide to match the season to your beach days, Koh Larn boat trip and sightseeing hours.
Featured image: Vyacheslav Argenberg, CC BY 4.0, via Wikimedia Commons.
Pattaya Weather at a Glance
Pattaya sits on the Gulf of Thailand in Chon Buri Province, and heat never fully leaves. Expect three broad phases: a hot, humid pre-monsoon build-up, southwest monsoon showers, and a cooler dry spell. The cooler dry spell is the easiest window for outdoor plans, and the monsoon months are the hardest for boats. For a month-by-month decision, read our Best Time to Visit Pattaya: Month-by-Month Guide guide. Readings on 10 November 2026 show how a dry-season day feels. Overnight air sat near 24°C (75°F), afternoons reached about 30°C (86°F), and the forecast highs ran 30–33°C (86–91°F) with almost no rain.
Pattaya Weather by Season
Official climate normals come from the Thai Meteorological Department. We list no monthly averages here that we could not verify, so the table marks those cells for a live check. The last column shows how price and crowds tend to move. As an illustration only, a room quoted at ฿2,000 in the busiest weeks may sit nearer ฿1,200 in the wettest weeks. Treat both figures as examples and compare live rates before booking.
| Season | Heat and humidity | Rain | Sea and boats | Crowds and price |
|---|---|---|---|---|
| Hot, pre-monsoon build-up | Hottest and stickiest; feels-like runs well above air temperature | Short storms possible; check current forecast | Usually calmer; verify with operator | Shoulder |
| Southwest monsoon | Humid, slightly softened by cloud | Frequent showers, some heavy; see rainy season guide | Rougher water; boat cancellations possible, verify with operator | Low |
| Cool, dry spell | Lowest humidity; mornings and evenings comfortable | Little rain | Generally best for Koh Larn speedboats and ferries | High |
Rain, Humidity and Heat Day to Day
Monsoon rain usually arrives as showers rather than all-day washouts. Plan outdoor sightseeing for the morning and keep a flexible afternoon. Our Pattaya Rainy Season: Months, Rain Reality & Plans page covers wet-month planning in more detail. Humidity matters more than air temperature here. On 10 November 2026 at about 4 AM, humidity was 81% and the feels-like figure was 93°F (34°C), against an air temperature near 84°F (29°C). Sunrise was 6:12 AM and sunset 5:47 PM, so daylight is short for planning long walks. Aim for outdoor activity before late morning and after 4 PM.
Sea Conditions and Boat Trips from Pattaya
Koh Larn trips depend on wind and swell in the Gulf of Thailand. Monsoon-season winds can roughen the crossing and lead to delays or cancelled sailings. Operator behavior varies, so verify with the operator the evening before and again at the pier. Book a flexible ticket or a day with no hard deadline behind it. Swimming on Pattaya Beach also needs care when waves build, so follow the lifeguard flags.
Air Quality and UV in Pattaya
AQI is a scale where values below 50 mean good air and values above 100 start to affect sensitive groups. A 10 November 2026 reading showed AQI 25, which is in the fair range, with fine particles (PM2.5) as the main pollutant. UV was 8, rated very high, even in the cooler season. Wear sunscreen and a hat from mid-morning. Check a live AQI map on the day, because we cannot confirm a seasonal haze pattern from a verified source.
What to Do in Each Kind of Weather
Match the activity to the conditions instead of judging by the morning sky. Heat peaks in the early afternoon, so shift exposed sights to the edges of the day.
| Activity | What weather does to it | Best time of day | Rain plan |
|---|---|---|---|
| Pattaya Beach and water sports | Rough surf and flags in monsoon; strong UV in dry weather | Early morning or late afternoon | Move to a covered café or mall |
| Koh Larn day trip | Wind can cancel or delay sailings | Morning departure | Rebook for another day; verify with operator |
| Sanctuary of Truth and temples | Hot, shaded paths and open courtyards | Opening hour | Visit under cover and wait out showers |
| Walking Street nightlife | Wet streets and flooding risk after heavy rain | After dark | Shift to indoor venues |
| Nong Nooch and outdoor attractions | Midday heat and humidity | Morning | Cover-friendly areas or a later day |
What to Pack and Where to Stay When It Rains
Bring a light rain jacket, reef-safe sunscreen and breathable layers. Wet songthaew rides and motorbikes get slippery, so skip bikes in heavy rain. Allow extra time for the Bangkok-to-Pattaya road transfer during storms. In wet months, choose a hotel near Pattaya Beach with covered walkways so a downpour does not strand you. Cool-season events are covered in Pattaya in December: Weather, Crowds, Events & Planning. For firework nights, read about the Pattaya Fireworks Festival: Dates, Where to Watch and Tips and check the forecast before you commit to a viewing spot.
Even at about 4 AM, humidity was 81%, so breathable layers belong in the bag beside the rain jacket.
Common Weather Mistakes in Pattaya
Four errors cause most weather problems for visitors.
- Judging the whole day by a clear morning sky.
- Planning midday outdoor sightseeing in peak heat.
- Reading the air temperature and ignoring the feels-like figure.
- Booking a Koh Larn trip with no weather fallback.
Where to Check the Live Forecast
Use the Thai Meteorological Department at its English site for official forecasts and warnings. Ventusky gives hourly wind and rain maps for Pattaya. Add a live AQI map for air quality. Check them the evening before and again at breakfast.
Pair the forecast with a live AQI map: the 10 November reading was AQI 25, only in the fair range.
Frequently Asked Questions
What is the low season in Pattaya, Thailand?
Low season generally follows the southwest monsoon, when showers are frequent and boat trips are less reliable. Rooms tend to be cheaper then, but confirm current rates on the booking page.
What's the weather like in Thailand each month?
Pattaya stays hot and humid in every month, with rain concentrated in the monsoon season. For exact monthly averages, check the Thai Meteorological Department's climate data.
Useful notes for your Thailand trip
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