Fri 23 Oct 2569 00:57
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Kaeng Som Maeo
Ratchaburi · Tanao Si, Suan Phueng, Ratchaburi217 m5 photosNature / cave / parkOpen daily

Clear rapids in the Phachi River

Kaeng Som Maeo

Kaeng Som Maeo in Suan Phueng, Ratchaburi, is a wide spread of rock slabs in the Phachi River with clear, shallow pools for wading, picnics, camping and peacocks at dawn, in the Queen Sirikit forest park.

Live today · Friday 23 Oct00:57
9.1out of 10
Good to go

Hot (Afternoon) feels like 38°C

10Morning
9.2Late morning
8.4Afternoon
9.3Evening
Stars tonight 4.3/10Sunrise 06:14
No warnings today — normal road and weather conditions
Good forSwimming, picnics, camping, families
Best timeOct–Jan
EntryFree (recent reviews)
From BangkokAbout 170+ km
Time neededHalf a day to overnight
Travel from Suan Phueng townAbout 40 min from Suan Phueng town
Best timeOct – Jan
Before heading into the park

Rainy season, safety and preparation

Rainy season

May – Oct

Caution

Phachi River — Rises fast in the rains

Time needed

Half a day to overnight

Phone signal

Weak

Before you go

6 days ahead
When to go

4/6good days
this week
Safety today · nothing to watch out for
Severe weatherNoneEarthquakesNone in 48 hMajor disastersNoneSite noticesNone

Tap a day card to see that day’s weather, rain, haze and hourly forecast

Daily detailsFriday 23 Oct
Good to go · 9.1/10

Best time to go Fine all day little rain through the day · light drizzle possible at times

By time of day
Morning 05–0910
Late morning 09–129.2Strong sun UV 8
Afternoon 12–168.4Hot, feels 38°
Evening 16–199.3Some showers

No warnings today — normal road and weather conditions

Sky and view
Clear sky / good views9/10
Visibility18 km
Cloud cover8%
Rain and storms
Rain chance15%
Rainfall0.2 mm
Humidity72%
LightningNo signal
Body and air
Feels like38°C
UV index8
Gusts~27 km/h
PM2.5 dust11 µg/m³
Time and crowds
Sunrise06:14
Sunset17:59
CrowdsModerately busy
Stargazing that night4.3/10

Hour by hour

TemperatureRain chanceScored hours
Sunrise 06:14Sunset 17:5906:00 Rain 0%07:00 Rain 0%08:00 Rain 0%09:00 Rain 0%10:00 Rain 0%11:00 Rain 12%12:00 Rain 15%13:00 Rain 15%14:00 Rain 15%15:00 Rain 25%16:00 Rain 25%17:00 Rain 15%18:00 Rain 15%19:00 Rain 15%20:00 Rain 15%23°0625°0728°0829°0930°1030°1112%31°1215%30°1315%30°1415%30°1525%30°1625%29°1715%27°1815%26°1915%26°2015%
TimeTemperatureRain chance
23°0%
25°0%
28°0%
29°0%
30°0%
30°12%
31°15%
30°15%
30°15%
30°25%
30°25%
29°15%
27°15%
26°15%
26°15%

Green band = hours used for the score

Stargazing

Starry sky
How likely

Scored from cloud cover at every level and tonight’s moonlight — the darker the sky, the clearer the Milky Way · tap another night below for the next 7 nights

4.3/10
Stargazing score tonight
39%Cloud cover
93%Moonlight
17:59Dusk
Get to know

Kaeng Som Maeo

Kaeng Som Maeo, Ban Huai Muang, Tanao Si, Suan Phueng, Ratchaburi.

A day here, hour by hour
  1. Peacocks about, cool air
  2. Shade and swimming
  3. Evening light on the rocks

Arrive 16:00

Best photo spots
  • Rock slabs in the PhachiClear water over rocksMorning
  • LawnPeacocks at dawnEarly morning
  • Riverside campsiteTents by the streamEvening

Before you go

Good to know here

Phachi River

Rises fast in the rains

Rock slabs

Slippery

Packing checklist
Tips from visitors
  1. Bring your own supplies; few shops and far from town
  2. Do not feed the peacocks
  3. The river rises fast in the rains — stay out after heavy rain
  4. Weak phone signal
Admission

Adults 0 THB · Time needed Half a day to overnight

When is it crowded

Cool-season weekends

Who it suits
  • Kids Good; shallow water, close supervision
  • Seniors Good at the riverside picnic areas
  • Wheelchair Not on the rocks
  • Pets No rule found; mind the peacocks
Where to eat
  • Shops at the upper car park
  • Honey Scene Steak, The Scenery Vintage FarmSuan Phueng, about 25 km
Etiquette here
  • Take your rubbish home
  • Camp in the marked area
  • Do not feed the peacocks
  • No fires outside permitted spots
More cautions
  • The Phachi rises fast in the rains; stay out after heavy rain
  • Low, warm water in the hot season
  • Remote, weak signal
Emergency numbers
Best times

Best months

Tap a month on the wheel to see weather, rain, haze and crowds from 10 years of records

JanFebMarAprMayJunJulAugSepOctNovDec
OctoberGreatWarm 23–29°C
RainHigh
HazeGood
CrowdsModerate
StatusGreat
Clear and flowing

Best time · Oct–Jan for clear, flowing water and cool air · early morning for peacocks

Watch out · Mar–May low, warm water · Aug–Sep high water

Actual weather records 2016–2025
Rainfall (mm)Clear days
JanuaryTemperature21–29°CAvg rain23 mmRainy days5 daysClear12 daysPM2.521 · Moderate29°
21°
Jan
FebruaryTemperature21–32°CAvg rain27 mmRainy days6 daysClear16 daysPM2.524 · Moderate32°
21°
Feb
MarchTemperature23–35°CAvg rain52 mmRainy days10 daysClear14 daysPM2.525 · Moderate35°
23°
Mar
AprilTemperature24–35°CAvg rain91 mmRainy days15 daysClear8 daysPM2.516 · Moderate35°
24°
Apr
MayTemperature25–33°CAvg rain162 mmRainy days23 daysClear1 daysPM2.57 · Great33°
25°
May
JuneTemperature24–30°CAvg rain126 mmRainy days19 daysClear0 daysPM2.53 · Great30°
24°
Jun
JulyTemperature24–29°CAvg rain174 mmRainy days25 daysClear0 daysPM2.53 · Great29°
24°
Jul
AugustTemperature24–29°CAvg rain159 mmRainy days24 daysClear0 daysPM2.53 · Great29°
24°
Aug
SeptemberTemperature24–30°CAvg rain204 mmRainy days25 daysClear0 daysPM2.52 · Great30°
24°
Sep
OctoberTemperature23–29°CAvg rain215 mmRainy days26 daysClear1 daysPM2.59 · Great29°
23°
Oct
NovemberTemperature22–28°CAvg rain85 mmRainy days15 daysClear4 daysPM2.512 · Great28°
22°
Nov
DecemberTemperature21–28°CAvg rain19 mmRainy days5 daysClear10 daysPM2.511 · Great28°
21°
Dec

Oct by the records 23–29°C · avg rain 215 mm (26 rainy days) · clear 1 days · avg PM2.5 9

Stories and history

The story of this place

Kaeng Som Maeo is at Ban Huai Muang, Moo 3, Tanao Si, Suan Phueng, Ratchaburi, beside rural road Rb 6007 about 25 km from Suan Phueng town. It is a broad spread of rock slabs in the Phachi River, where clear water forms shallow pools. Most sources place it in the Queen Sirikit forest park or forest-plant study centre; no source confirms that it lies in Chaloem Phrakiat Thai Prachan National Park, and the origin of the name "Som Maeo" is unknown.

Read more 3 more paragraphs

The forest park was set up around 1992 to honour Queen Sirikit's 60th birthday, and the same year a book recorded the plants of the "Sirikit Forest Park, Central Region (Ratchaburi)". It has a nature trail and plant collections.

The Phachi is an important river of the Kaeng Krachan forests. In 2012 the nearby Chaloem Phrakiat Thai Prachan National Park was declared, and in 2021 the Kaeng Krachan Forest Complex, including the Mae Nam Phachi Wildlife Sanctuary and Thai Prachan National Park, was inscribed as a UNESCO World Heritage site.

Reviews from 2019 to 2025 say entry is no longer charged and that peacocks wander near the campsite in the morning. It remains a spot for wading, picnics and camping; the water is low and warm in the hot season, and the Phachi rises quickly after heavy rain.

  1. 1992Queen Sirikit forest park set up for her 60th birthday
  2. 25 Jan 2012Thai Prachan National Park declared nearby
  3. 2021Kaeng Krachan Forest Complex becomes World Heritage
  4. 2019–2023Reviews say entry is free
  5. 2025Still a camping and peacock-watching spot
Rock slabs in the Phachi
Rock slabs in the PhachiPhoto: Athichitra / Wikimedia Commons (CC BY-SA 4.0)
Water over the rapids
Water over the rapidsPhoto: Athichitra / Wikimedia Commons (CC BY-SA 4.0)
Travellers who came

Check-ins & visitor photos

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    Getting there

    How to get there

    Paved rural road, winding in places

    Open in Google Maps
    CarAbout 3 h from Bangkok

    Suan Phueng, Rt 3087, then Rb 6007 · Fuel

    Van + rental carNo public transport

    To Suan Phueng, then rent · Per operator

    Road

    Rt 3087, then rural road Rb 6007 for about 20 km

    Parking

    Upper car park with food shops

    Fuel

    Suan Phueng town

    Mobile signal

    Weak

    Opening hours

    About 08:00–17:00 (sources differ)

    Distance

    around 25 km fromSuan Phueng town

    Search Google Maps by name

    Kaeng Som Maeo

    Foreigner entry fee

    0 THB

    FAQ

    FAQ
    Before you goKaeng Som Maeo

    Answers travellers want before they go — a one-minute read

    01

    Where is Kaeng Som Maeo?

    Ban Huai Muang, Tanao Si, Suan Phueng, about 25 km from town on Rb 6007, in the Queen Sirikit forest park

    02

    Is there an entry fee?

    Reviews from 2019 and 2023 say it is free; an older listing says 20 THB

    03

    Can I swim?

    Yes, in the shallow rock pools; avoid it after heavy rain

    04

    Can I camp?

    Yes, there is a campsite, and peacocks often visit in the morning

    05

    Is it in a national park?

    No source confirms it is in Chaloem Phrakiat Thai Prachan National Park; most describe it as the Queen Sirikit forest park

    06

    When is it best?

    Late rainy to cool season, Oct–Jan

    Ready to go to Kaeng Som Maeo?

    Best day this week: Friday 23 Oct · Check in when you arrive to collect a stamp

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