Tham Pla

Cave

Near Mae Hong Son, Tham Pla (Fish Cave) features shallow pools of trout, limestone caverns, and a small shrine. Visitors take short boardwalk walks, photograph pools, and buy snacks or hill-tribe crafts from nearby stalls.

Tham Pla
20.3311, 99.8638

How to Get to Tham Pla #

Tham Pla is in northern Thailand; access typically requires a vehicle from the nearest provincial town. Visitors usually reach the region by car or motorcycle from the nearest district center; local songthaews (shared pickups) and private tuk-tuks serve village routes. Expect rough, sometimes unpaved last miles-high-clearance vehicles are helpful in the rainy season.

Tips for Visiting Tham Pla #

  • Visit early morning when light filters into the cave pool and the fish are most active.
  • Bring a flashlight and waterproof shoes-paths can be slippery after rain.
  • Ask a local guide about seasonal insect activity; some trails are best avoided in the wet season.

Best Time to Visit Tham Pla #

Best seen in the dry season for safer trails and clearer cave pools; afternoons in the wet season can be muddy and slippery.

Cool, dry season
November-February · 18-28°C
Clearer trails and cooler days make exploring the cave and surrounding karst easier.
Hot, dry shoulder season
March-April · 25-33°C
Fewer rains but hotter temperatures; water levels in cave pools can be lower.

Weather & Climate near Tham Pla #

Climate

Tham Pla's climate is classified as Tropical Savanna - Tropical Savanna climate with hot summers (peaking in May) and mild winters (coldest in January). Temperatures range from 13°C to 34°C. Abundant rainfall (1776 mm/year), wettest in August with a pronounced dry season.

Air Quality: AQI 88 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
41°
Warmest Month
Coldest Month
Monthly Conditions

January

January is mild with highs of 27°C and lows of 13°C. The driest month with just 9 mm and mostly sunny skies.

93 Ideal

Comfort

20°
Feels Like Mild
20°C
Temperature
13° 27°
69%
Humidity
Humid

Weather

9 mm
Rainfall
1.0 m/s
Wind
Calm
1.4
UV Index
High
10.9h daylight

February

February is mild with highs of 31°C and lows of 14°C. Light rainfall and mostly sunny skies.

95 Ideal

Comfort

23°
Feels Like Mild
23°C
Temperature
14° 31°
58%
Humidity
Humid

Weather

15 mm
Rainfall
1.0 m/s
Wind
Calm
1.7
UV Index
Very High
11.4h daylight

March

March is warm with highs of 33°C and lows of 17°C. Light rainfall and mostly sunny skies.

93 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
17° 33°
54%
Humidity
Humid

Weather

21 mm
Rainfall
1.2 m/s
Wind
Calm
1.8
UV Index
Very High
11.9h daylight

April

April is hot, feeling like 29°C. Regular rainfall (89 mm).

75 Very Good

Comfort

29°
Feels Like Hot
28°C
Temperature
21° 35°
58%
Humidity
Humid

Weather

89 mm
Rainfall
1.1 m/s
Wind
Calm
2.1
UV Index
Extreme
12.5h daylight

May

May is the hottest month, feeling like 30°C due to high humidity. Heavy rain (221 mm) and mostly overcast skies.

57 Acceptable

Comfort

30°
Feels Like Hot
28°C
Temperature
23° 33°
71%
Humidity
Very Humid

Weather

221 mm
Rainfall
1.3 m/s
Wind
Calm
2.2
UV Index
Extreme
13.0h daylight

June

June is hot, feeling like 30°C due to high humidity. Heavy rain (216 mm) and mostly overcast skies.

63 Good

Comfort

30°
Feels Like Hot
27°C
Temperature
23° 31°
77%
Humidity
Very Humid

Weather

216 mm
Rainfall
1.2 m/s
Wind
Calm
2.0
UV Index
Very High
13.2h daylight

July

July is warm with highs of 30°C and lows of 23°C. Heavy rain (349 mm) and mostly overcast skies.

63 Good

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 30°
82%
Humidity
Very Humid

Weather

349 mm
Rainfall
1.0 m/s
Wind
Calm
1.9
UV Index
Very High
13.1h daylight

August

August is warm with highs of 30°C and lows of 23°C. The wettest month with heavy rain (383 mm) and mostly overcast skies.

63 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 30°
84%
Humidity
Very Humid

Weather

383 mm
Rainfall
0.9 m/s
Wind
Calm
1.8
UV Index
Very High
12.7h daylight

September

September is warm with highs of 30°C and lows of 22°C. Heavy rain (273 mm) and mostly overcast skies.

63 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 30°
82%
Humidity
Very Humid

Weather

273 mm
Rainfall
0.8 m/s
Wind
Calm
1.8
UV Index
Very High
12.1h daylight

October

October is warm with highs of 30°C and lows of 21°C. Significant rainfall (127 mm) and partly cloudy skies.

73 Very Good

Comfort

25°
Feels Like Warm
25°C
Temperature
21° 30°
80%
Humidity
Very Humid

Weather

127 mm
Rainfall
0.7 m/s
Wind
Calm
1.6
UV Index
Very High
11.6h daylight

November

November is mild with highs of 28°C and lows of 17°C. Moderate rainfall (55 mm).

87 Excellent

Comfort

23°
Feels Like Mild
23°C
Temperature
17° 28°
77%
Humidity
Very Humid

Weather

55 mm
Rainfall
0.7 m/s
Wind
Calm
1.5
UV Index
High
11.1h daylight

December

December is mild with highs of 26°C and lows of 14°C. Light rainfall.

89 Excellent

Comfort

20°
Feels Like Mild
20°C
Temperature
14° 26°
74%
Humidity
Very Humid

Weather

18 mm
Rainfall
0.8 m/s
Wind
Calm
1.3
UV Index
High
10.8h daylight

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