Phon, Thailand experiences average highs of 32°C (90°F) and lows of 23°C (73°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have cooled by 1.0°C (1.8°F) across the available records.
Phon, Thailand Weather & Climate 2026
Monthly climate averages for Phon, Thailand. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.2/10
Best: January, February, November, December
UV Index
7
High
Temperature 32°C / 23°C
Feels Like 35°C / 25°C
Rainy Days 12
Rainfall 95 mm
Sunshine 10 h
Humidity 68%
Wind Speed 14 km/h
Dew Point 21°C
Hottest Month
36°C
April
Avg Low 26°C
Rain 9 days
Coldest Month
18°C
January
Avg High 30°C
Rain 2 days
Driest Month
1 days
February
Avg High 32°C
Avg Low 20°C
Windiest Month
17 km/h
December (Gusts 36)
Worst Time to Visit
Consider avoiding May, July, August, September due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:46
Daylight 13h
Sunset 18:45
Live conditions —
Phon on the map · live conditions
Phon, Thailand
- Continent
- Asia
- Country
- Thailand
- City
- Phon
- Population
- 14.6K
- Coordinates
- 15.82°, 102.60°
Seasonal Breakdown
Spring
Mar–May
Avg High 35°C
Avg Low 25°C
Rain 11 days/mo
Summer
Jun–Aug
Avg High 32°C
Avg Low 25°C
Rain 20 days/mo
Autumn
Sep–Nov
Avg High 30°C
Avg Low 23°C
Rain 15 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 30°C
Avg Low 19°C
Rain 1 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 30°C / 18°C . Feb: 32°C / 20°C . Mar: 34°C / 23°C . Apr: 36°C / 26°C . May: 34°C / 26°C . Jun: 33°C / 26°C . Jul: 32°C / 25°C . Aug: 31°C / 25°C . Sep: 31°C / 24°C . Oct: 30°C / 23°C . Nov: 29°C / 21°C . Dec: 29°C / 19°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 6 mm. Feb: 8 mm. Mar: 38 mm. Apr: 50 mm. May: 150 mm. Jun: 127 mm. Jul: 187 mm. Aug: 164 mm. Sep: 234 mm. Oct: 141 mm. Nov: 31 mm. Dec: 6 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 59%. Feb: 54%. Mar: 57%. Apr: 59%. May: 71%. Jun: 72%. Jul: 76%. Aug: 77%. Sep: 83%. Oct: 78%. Nov: 69%. Dec: 61%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 14 km/h . Mar: 12 km/h . Apr: 13 km/h . May: 12 km/h . Jun: 15 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 12 km/h . Oct: 13 km/h . Nov: 16 km/h . Dec: 17 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 11h. Mar: 11h. Apr: 11h. May: 10h. Jun: 10h. Jul: 8h. Aug: 8h. Sep: 8h. Oct: 9h. Nov: 9h. Dec: 9h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 7. Feb: UV 8. Mar: UV 9. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 7. Aug: UV 8. Sep: UV 7. Oct: UV 7. Nov: UV 7. Dec: UV 6.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have cooled by 1.0°C (1.8°F) across the available records. Average rainfall is trending wetter by about 15 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Apr 2025 · 35°C | Apr · 36°C |
| Coldest month | Jan 2025 · 15°C | Jan · 18°C |
| Wettest month | May 2025 · 250 mm | Sep · 234 mm |
| Windiest month | Jul 2025 · 19 km/h | Dec · 17 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March
Fair April
Poor May
Wet June
Poor July
Wet August
Wet September
Wet October
Fair November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 30°C / 18°C | 30°C / 18°C | 2days (6 mm) Excellent | 9.9h Good | 59% Moderate | 6.9 High | Excellent | View Details |
| February best | 32°C / 20°C | 33°C / 20°C | 1days (8 mm) Excellent | 10.5h Excellent | 54% Moderate | 7.7 Very High | Excellent | View Details |
| March | 34°C / 23°C | 38°C / 25°C | 5days (38 mm) Good | 10.9h Excellent | 57% Moderate | 8.5 Very High | Fair | View Details |
| April | 36°C / 26°C | 40°C / 29°C | 9days (50 mm) Wet | 11h Excellent | 59% Moderate | 8.9 Very High | Poor | View Details |
| May | 34°C / 26°C | 39°C / 30°C | 19days (150 mm) Wet | 10.3h Excellent | 71% Muggy | 8.1 Very High | Wet | View Details |
| June | 33°C / 26°C | 38°C / 30°C | 17days (127 mm) Wet | 9.8h Good | 72% Muggy | 7.7 Very High | Poor | View Details |
| July | 32°C / 25°C | 36°C / 29°C | 22days (187 mm) Wet | 8.3h Good | 76% Humid | 6.7 High | Wet | View Details |
| August | 31°C / 25°C | 36°C / 29°C | 22days (164 mm) Wet | 8.3h Good | 77% Humid | 7.7 Very High | Wet | View Details |
| September | 31°C / 24°C | 36°C / 29°C | 25days (234 mm) Wet | 8.2h Good | 83% Humid | 6.8 High | Wet | View Details |
| October | 30°C / 23°C | 34°C / 26°C | 15days (141 mm) Wet | 8.9h Good | 78% Humid | 7.4 Very High | Fair | View Details |
| November best | 29°C / 21°C | 32°C / 23°C | 5days (31 mm) Good | 9.2h Good | 69% Muggy | 6.6 High | Excellent | View Details |
| December best | 29°C / 19°C | 29°C / 18°C | 1days (6 mm) Excellent | 9.4h Good | 61% Muggy | 6.3 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Phon are January, February, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Phon, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Phon is April, with average daytime highs of 36°C (96°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Phon is January, with average overnight lows of 18°C (65°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Phon is September, averaging 234mm of precipitation across 25 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Phon runs through September, July, August, May, with the heaviest rainfall in September. Based on 10-year averages for Phon.
Phon receives approximately 115 sunshine hours per year. The sunniest month is April with around 11 hours. Based on climate data for Phon.
The least favorable months to visit Phon are May, July, August, September, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, November, December instead.
The annual average UV index in Phon is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Phon is 68%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Average wind speeds in Phon are 14 km/h (9 mph). The windiest month is December with peak winds reaching 17 km/h (10 mph) (gusts up to 36 km/h / 22 mph).
Phon averages 4 clear-sky days per month with overall cloud cover around 63%. The clearest skies occur in February.
The annual average dew point in Phon is 21°C (70°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Phon has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Phon ranges from 25°C (77°F) to 35°C (95°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
July is not the best time to visit Phon, with a climate score of 2.7/10. Consider visiting during January, February, November, December instead for better conditions.
For July in Phon, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 32°C (89°F) and 22 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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