Climate and average weather in Phanat Nikhom

In Phanat Nikhom, the weather is oppressive, sweltering, wet, and partly cloudy and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around September.

Best: early November to early February

Over the course of the year, the temperature in Phanat Nikhom typically varies from 22°C to 34°C, and is rarely below 18°C or above 37°C. April is the hottest month of the year, while December is the coldest.

Based on the travel score, the best time of year to visit Phanat Nikhom for warm-weather activities is from early November to early February.

Hottest
Apr
34°
Coldest
Dec
22°
Wettest
Sep
282 mm
Driest
Dec
8 mm
Rain / yr
1429 mm
186 wet days
Daylight
11.2–12.8 h
shortest–longest
Elevation
12 m
13.4°N
Clearest
Feb
41% cloud

Phanat Nikhom is town in Chon Buri province, Thailand.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Phanat Nikhom weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early November to early February.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Phanat Nikhom, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Phanat Nikhom stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 34°C and low of 26°C; the coolest is December, with an average low of 22°C and high of 32°C.

Days typically run about 8°C warmer than nights, with the widest day–night swing (around 10°C) in January.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3222
Feb3323
Mar3425
Apr3426
May3426
Jun3326
Jul3226
Aug3226
Sep3225
Oct3225
Nov3224
Dec3222

How hot and cold Phanat Nikhom really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Phanat Nikhom feels like about 43°C (around April 23). Nearly every day a year carries some heat stress, and 223 of them tip into dangerous heat (feels-like above 39°C), peaking in April.

20°25°30°35°40°45°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan34322222
Feb37332323
Mar40342525
Apr43342626
May43342626
Jun41332626
Jul40322626
Aug40322626
Sep40322525
Oct38322525
Nov36322424
Dec33322222

Average hourly temperature in Phanat Nikhom

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on April afternoons, near 34°C, and coldest before dawn in December, near 22°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Phanat Nikhom weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°17411.34.7
Feb33° / 23°214.811.63.9
Mar34° / 25°6311.611.93.0
Apr34° / 26°981612.32.4
May34° / 26°18223.512.62.1
Jun33° / 26°17522.812.82.3
Jul32° / 26°17424.412.72.4
Aug32° / 26°19625.512.42.4
Sep32° / 25°28226.512.12.3
Oct32° / 25°17819.711.73.1
Nov32° / 24°345.511.44.4
Dec32° / 22°81.911.25.1

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Phanat Nikhom gets about 1429 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.2 months, from around Apr 15 to Oct 21, peaking in September at about 90% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 22.

September is the wettest month by volume, with 282 mm over about 27 wet days; December is the driest, with 8 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 14 · 90%Dec 22 · 4%
Rain on a day (%)Rain days
Jan124
Feb185
Mar3712
Apr5416
May7524
Jun7723
Jul7924
Aug8226
Sep8927
Oct6220
Nov206
Dec62

Monthly rainfall

Over a full year, Phanat Nikhom collects about 1429 mm of rain across 186 wet days — roughly 119 mm in an average month.

It doesn’t fall evenly. September is the wettest month with 282 mm, while December is the driest at just 8 mm. The three wettest months alone bring about 46% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec17216398182175174196282178348
Rainfall (mm)Rain days
Jan174
Feb215
Mar6312
Apr9816
May18224
Jun17523
Jul17424
Aug19626
Sep28227
Oct17820
Nov346
Dec82

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Phanat Nikhom, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around October 24 and lasts for 6.2 months, ending around April 29. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 79% of the time on average.

The cloudier part of the year begins around April 30 and lasts for 5.8 months, ending around October 23. The cloudiest month is August, when it is overcast or mostly cloudy 94% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecFeb 9 · 80%Jul 31 · 5%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan7030
Feb7921
Mar6832
Apr4852
May1882
Jun892
Jul892
Aug694
Sep892
Oct2872
Nov5545
Dec6337

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 5, brings about 12 h 48 min of light; the shortest, around January 1, only 11 h 12 min — a swing of roughly 1 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.36:466:03
Feb11.66:436:16
Mar11.96:286:22
Apr12.36:066:24
May12.65:536:30
Jun12.85:526:39
Jul12.75:596:43
Aug12.46:066:33
Sep12.16:076:12
Oct11.76:095:51
Nov11.46:195:42
Dec11.26:355:48

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Phanat Nikhom averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 17 days.

The sunnier stretch runs 6.0 months, from around Oct 25 to Apr 24. The sunniest month is February, with roughly 17 sunny days (bright).

The greyest month is July, down near 0 sunny days — about 97% fewer than the February peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightFeb 917 daysJul 220 days
Sunny daysSky
Jan15Mixed
Feb16Bright
Mar15Mixed
Apr9Mixed
May2Gloomy
Jun1Gloomy
Jul0Gloomy
Aug0Gloomy
Sep0Gloomy
Oct5Gloomy
Nov10Mixed
Dec13Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

Phanat Nikhom is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is March, when it feels muggy, oppressive or miserable about 97% of the time. Even in December, the mildest month, the air is dry or comfortable only 14% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecDec 25 · 20%Mar 18 · 0%oppressivemiserablemuggyhumidcomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan4102423346
Feb1613164915
Mar00274644
Apr00012178
May0000694
Jun0000991
Jul00001684
Aug00001486
Sep0000991
Oct00252767
Nov029293624
Dec3102433255

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Phanat Nikhom is typically calm, near 8 km/h, and varies little with the seasons.

The windier part of the year lasts 2.2 months, from around Nov 7 to Jan 13. The windiest month is December, averaging about 10 km/h (calm).

The calmer part of the year runs from around Aug 25 to Nov 6, with October the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeDec 16 · 10 km/hOct 3 · 6 km/h
Wind speed (km/h)Feels
Jan8calm
Feb8calm
Mar8calm
Apr8calm
May8calm
Jun9calm
Jul9calm
Aug9calm
Sep7calm
Oct7calm
Nov9calm
Dec10calm

Hazard calendar for Phanat Nikhom

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Phanat Nikhom sits in the Pacific typhoon belt; the season peaks July–October.

Phanat Nikhom's rainy season runs May–October, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Phanat Nikhom

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Phanat Nikhom throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late January, Phanat Nikhom is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Phanat Nikhom for general outdoor tourist activities is from early November to early February, with a peak score in the last week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 23 · 5.3

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.7fair
Feb3.9fair
Mar3.0poor
Apr2.4poor
May2.1poor
Jun2.3poor
Jul2.4poor
Aug2.4poor
Sep2.3poor
Oct3.2poor
Nov4.4fair
Dec5.1fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Phanat Nikhom for hot-weather activities is from early November to early March, with a peak score in the last week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 24 · 8.0

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Phanat Nikhom, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Phanat Nikhom packs about the same all year — highs hold near 34°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In April, Phanat Nikhom sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

Sea temperature near Phanat Nikhom

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 34 km away) is warmest in May at about 31°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index (midday) in Phanat Nikhom by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Phanat Nikhom peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highAug 15UV 13Dec 13UV 9
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May9Very high
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Average hourly UV index in Phanat Nikhom

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in August the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan74.5
Feb75
Mar7.55.5
Apr86
May7.55
Jun8.56
Jul86
Aug8.56.5
Sep85.5
Oct7.55
Nov74.5
Dec6.54

Air quality in Phanat Nikhom by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Phanat Nikhom is worst in January — around 67 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (June, 34 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorPoorJan 2366 µg/m³Jun 2034 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb65Unhealthy
Mar53Poor
Apr47Poor
May40Poor
Jun34Moderate
Jul36Poor
Aug36Poor
Sep47Poor
Oct57Unhealthy
Nov53Poor
Dec47Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Phanat Nikhom is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Phanat Nikhom banks about 6,810 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan525
Feb510
Mar603
Apr606
May618
Jun585
Jul593
Aug590
Sep558
Oct566
Nov535
Dec520

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Phanat Nikhom receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 5.9 kWh/m².

The brighter stretch of the year lasts 4.5 months, from around Jan 18 to Jun 4. The brightest month is April, averaging about 5.8 kWh/m² (bright).

The dimmest month is September, down near 4.4 kWh/m² — roughly 24% less than the April peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerdimmoderatebrightintenseApr 115.9 kWhSep 224.3 kWh
Solar energy (kWh/m²)Level
Jan5.0Bright
Feb5.4Bright
Mar5.7Bright
Apr5.8Bright
May5.2Bright
Jun4.9Bright
Jul4.7Bright
Aug4.6Bright
Sep4.4Bright
Oct4.6Bright
Nov4.9Bright
Dec4.8Bright

Where is Phanat Nikhom?

Phanat Nikhom sits at 13.4°N, 101.2°E, 12 m above sea level, in Thailand. The nearest listed city is Phan Thong, 10 km away.

Topography around Phanat Nikhom

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Phanat Nikhom.

Within 3 km, the terrain around Phanat Nikhom has only modest variations in elevation — a maximum elevation change of 35 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, large variations in elevation — a maximum elevation change of 956 m.

The land around Phanat Nikhom is covered by trees (39%), artificial surfaces (23%) and cropland (22%) within 3 km, cropland (35%) and trees (31%) within 16 km, and trees (43%) and cropland (22%) within 80 km.

3 km
35 m
16 km
102 m
80 km
956 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Phan Thong 10 km · Ban Bueng 17 km · Bang Pakong 23 km · Chon Buri 24 km · Chachoengsao 30 km · Ban Ang Sila 30 km · Phanom Sarakham 38 km · Si Racha 41 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Phanat Nikhom (13.4466°, 101.1845°, elevation 12 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).