Climate and average weather in Seka

In Seka, the weather is muggy, sweltering, wet, and partly cloudy and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around July.

Best: early January to mid February

Over the course of the year, the temperature in Seka typically varies from 16°C to 33°C, and is rarely below 11°C or above 37°C. April is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Seka for warm-weather activities are from early January to mid February and late November to late December.

Hottest
Apr
33°
Coldest
Jan
16°
Wettest
Jul
511 mm
Driest
Dec
6 mm
Rain / yr
2246 mm
172 wet days
Daylight
10.9–13.1 h
shortest–longest
Elevation
158 m
17.9°N
Clearest
Feb
30% cloud

Seka 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 January to mid February.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Seka stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 33°C and low of 24°C; the coolest is January, with an average low of 16°C and high of 28°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 12°C) in January.

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2816
Feb3018
Mar3221
Apr3324
May3225
Jun3125
Jul3125
Aug3025
Sep3125
Oct3123
Nov3120
Dec2917

How hot and cold Seka 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, Seka feels like about 40°C (around May 9). About 258 days a year carry some heat stress, and 66 of them tip into dangerous heat (feels-like above 39°C), peaking in May.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan28281616
Feb30301818
Mar34322121
Apr38332424
May40322525
Jun39312525
Jul38312525
Aug38302525
Sep38312525
Oct35312323
Nov32312020
Dec29291717

Average hourly temperature in Seka

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 33°C, and coldest before dawn in January, near 16°C.

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

Seka 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
Jan28° / 16°81.6117.3
Feb30° / 18°162.511.46.2
Mar32° / 21°396.111.94.5
Apr33° / 24°6911.812.43.2
May32° / 25°27924.612.82.5
Jun31° / 25°4052813.12.3
Jul31° / 25°51129.5132.5
Aug30° / 25°49930.112.62.5
Sep31° / 25°31324.212.12.9
Oct31° / 23°8610.511.64.3
Nov31° / 20°162.411.25.7
Dec29° / 17°61.110.97.3

Chance of rain

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

Seka gets about 2246 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 5.5 months, from around Apr 23 to Oct 7, peaking in August at about 98% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 16.

July is the wettest month by volume, with 511 mm over about 30 wet days; December is the driest, with 6 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetAug 4 · 98%Dec 16 · 3%
Rain on a day (%)Rain days
Jan52
Feb93
Mar206
Apr4112
May7925
Jun9328
Jul9630
Aug9730
Sep8024
Oct3411
Nov82
Dec41

Monthly rainfall

Over a full year, Seka collects about 2246 mm of rain across 172 wet days — roughly 187 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 511 mm, while December is the driest at just 6 mm. The three wettest months alone bring about 63% of the year’s total.

050100150200250300350400450500550600JanFebMarAprMayJunJulAugSepOctNovDec816396927940551149931386166
Rainfall (mm)Rain days
Jan82
Feb163
Mar396
Apr6912
May27925
Jun40528
Jul51130
Aug49930
Sep31324
Oct8611
Nov162
Dec61

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Seka, 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 7 and lasts for 6.7 months, ending around April 28. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 86% of the time on average.

The cloudier part of the year begins around April 29 and lasts for 5.3 months, ending around October 6. The cloudiest month is June, when it is overcast or mostly cloudy 93% 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 10 · 87%Aug 1 · 6%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan8119
Feb8614
Mar7822
Apr6139
May2476
Jun793
Jul991
Aug892
Sep2575
Oct5842
Nov7822
Dec8317

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 11, brings about 13 h 06 min of light; the shortest, around January 1, only 10 h 54 min — a swing of roughly 2 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.06:425:44
Feb11.46:376:01
Mar11.96:186:10
Apr12.45:526:17
May12.85:356:26
Jun13.15:326:36
Jul13.05:406:39
Aug12.65:506:27
Sep12.15:566:02
Oct11.66:025:37
Nov11.26:155:24
Dec10.96:325:28

Sunny days

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

Seka averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 22 days.

The sunnier stretch runs 6.1 months, from around Oct 16 to Apr 20. The sunniest month is March, with roughly 19 sunny days (bright).

The greyest month is August, down near 1 sunny days — about 97% fewer than the March peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantMar 222 daysAug 10 days
Sunny daysSky
Jan21Bright
Feb20Bright
Mar20Bright
Apr13Mixed
May4Gloomy
Jun1Gloomy
Jul1Gloomy
Aug1Gloomy
Sep4Gloomy
Oct12Mixed
Nov18Bright
Dec21Bright

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.

In Seka, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 7.8 months, from around March 7 to October 30. The muggiest month is April, when the air feels humid, muggy or worse about 99% of the time.

The most comfortable stretch runs from around October 31 to March 6, and December is the most comfortable month — the air is dry or comfortable 50% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecDec 22 · 56%Apr 29 · 0%humidoppressivemiserablemuggycomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan2128321630
Feb12193029100
Mar361534402
Apr014145525
May00142274
Jun0000595
Jul0000694
Aug0000793
Sep00041877
Oct138253825
Nov8152432192
Dec2327281930

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.

Wind in Seka is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeDec 13 · 8 km/hSep 12 · 5 km/h
Wind speed (km/h)Feels
Jan7calm
Feb7calm
Mar7calm
Apr6calm
May5calm
Jun6calm
Jul6calm
Aug6calm
Sep5calm
Oct6calm
Nov7calm
Dec8calm

Hazard calendar for Seka

In seasonPeak

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

Seka's monsoon runs May–September, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Seka

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early February, Seka 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 Seka for general outdoor tourist activities is from late November to mid February, with a peak score in the last week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 25 · 7.7

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
Jan7.3good
Feb6.2good
Mar4.5fair
Apr3.2poor
May2.5poor
Jun2.3poor
Jul2.5poor
Aug2.5poor
Sep2.9poor
Oct4.3fair
Nov5.7good
Dec7.3good

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 Seka for hot-weather activities is from late October to late March, with a peak score in the second week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 14 · 8.9

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 Seka, 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.

Seka packs about the same all year — highs hold near 33°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, Seka sees daytime highs around 33°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

UV index (midday) in Seka 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 Seka peaks around July 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJul 17UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar11Extreme
Apr10Very high
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Average hourly UV index in Seka

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 July 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)
Jan6.54
Feb75
Mar7.55.5
Apr7.55.5
May8.56
Jun8.56.5
Jul8.56.5
Aug86
Sep86
Oct7.55
Nov6.53.5
Dec63

Air quality in Seka 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 Seka is worst in April — around 86 µg/m³ PM2.5 (unhealthy), about 5.7× the cleanest month (September, 15 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateApr 1085 µg/m³Sep 1615 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb38Poor
Mar80Unhealthy
Apr86Unhealthy
May24Moderate
Jun17Moderate
Jul17Moderate
Aug17Moderate
Sep15Moderate
Oct17Moderate
Nov16Moderate
Dec19Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Seka 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. Seka banks about 5,987 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)
Jan380
Feb393
Mar520
Apr561
May576
Jun547
Jul551
Aug544
Sep532
Oct531
Nov460
Dec392

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.

Seka receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.8 and 6.0 kWh/m².

The brighter stretch of the year lasts 3.9 months, from around Jan 19 to May 18. The brightest month is April, averaging about 5.9 kWh/m² (bright).

The dimmest month is August, down near 3.9 kWh/m² — roughly 35% less than the April peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerdimmoderatebrightintenseApr 106.0 kWhAug 43.8 kWh
Solar energy (kWh/m²)Level
Jan4.8Bright
Feb5.3Bright
Mar5.8Bright
Apr6.0Bright
May5.0Bright
Jun4.4Bright
Jul4.1Bright
Aug3.9Moderate
Sep4.3Bright
Oct4.9Bright
Nov4.8Bright
Dec4.6Bright

Where is Seka?

Seka sits at 17.9°N, 104.0°E, 158 m above sea level, in Thailand. The nearest listed city is Pakxan, 60 km away.

Nakhon Phanom

Topography around Seka

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

Within 3 km, the terrain around Seka has only modest variations in elevation — a maximum elevation change of 36 m around an average of 155 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 409 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,360 m.

The land around Seka is covered by trees (52%) and cropland (31%) within 3 km, trees (53%) and cropland (36%) within 16 km, and trees (60%) and cropland (34%) within 80 km.

3 km
36 m
16 km
409 m
80 km
1,360 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Pakxan 60 km · Sawang Daen Din 73 km · Borikhan 75 km · Ban Dung 78 km · Warichaphum 78 km · Phon Charoen 84 km · Sakon Nakhon 88 km · Nakhon Phanom 105 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 Seka (17.9285°, 103.9552°, elevation 158 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. 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).