Si Sa Ket in Spring

In spring (March, April and May), Si Sa Ket sees average daytime highs around 35°C and overnight lows near 26°C, with 230 mm of rain over about 38 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.

Across spring, daytime highs hold fairly steady around 35°C. The sky is clear or mostly clear about 33% of the time across spring, and the air most often feels oppressive.

Spring is Si Sa Ket's weakest season of the year to visit on our travel score. For the whole year in context, see Si Sa Ket's year-round climate.

Avg daytime high: 35°C; warmest season of the year
Avg overnight low: 26°C
Rainfall: 230 mm; 38 wet days
Avg wind: 8 km/h
Travel score: 2.2; weakest season of the year
Months: Mar · Apr · May

← Winter Si Sa Ket year-round climate Summer →

Spring Summer Fall Winter

Temperature in Si Sa Ket in Spring

Average highAverage lowShaded bands: 10–90% of days

Across spring, daytime highs hold fairly steady around 35°C.

A typical spring day in Si Sa Ket reaches about 35°C and drops to 26°C overnight. The warmest of the three months is April, the coolest March.

How spring really feels in Si Sa Ket

Once humidity and wind are folded in, spring brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C

71 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Si Sa Ket weather by month

How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 19°	4	1.1	11.2	5.5
Feb	33° / 21°	7	1.7	11.5	4.3
Mar	35° / 24°	29	6	11.9	2.7
Apr	36° / 26°	66	11.4	12.3	1.9
May	35° / 26°	134	20.3	12.7	1.9
Jun	34° / 26°	144	20.2	12.9	2.2
Jul	33° / 26°	171	23.3	12.8	2.4
Aug	32° / 25°	218	24.9	12.5	2.4
Sep	32° / 25°	250	24.4	12.1	2.6
Oct	31° / 24°	121	14.9	11.7	3.8
Nov	31° / 22°	32	4.3	11.3	5.1
Dec	30° / 20°	7	1.6	11.1	5.9

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time across spring.

Chance of precipitation in Spring

Any precipitation

Si Sa Ket gets around 230 mm of rain over 38 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Spring

Winds average 8 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 h 42 min in early March to 12 h 48 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 5.9 kWh/m².

Planning a trip in spring

Hazard calendar for Si Sa Ket

In seasonPeak

In spring, Si Sa Ket overlaps its monsoon season. The full year is below, with each hazard's peak months called out.

Si Sa Ket's monsoon runs May–October, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is spring a good time to visit Si Sa Ket?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

2.2

Sightseeing

4th-best month of the year

4.9

Beach & pool

3rd-best month of the year

spring is a weaker month for outdoor sightseeing in Si Sa Ket.

What to pack for Si Sa Ket in Spring

From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In spring, Si Sa Ket sees daytime highs around 35°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 38 days see rain.

light clothesrain gearsun protection

UV index in Si Sa Ket in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Si Sa Ket peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 8 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	9	10	11	11	11	12	13	13	11	11	8	8
Level	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	9	Very high
Feb	10	Very high
Mar	11	Extreme
Apr	11	Extreme
May	11	Extreme
Jun	12	Extreme
Jul	13	Extreme
Aug	13	Extreme
Sep	11	Extreme
Oct	11	Extreme
Nov	8	Very high
Dec	8	Very high

Air quality in Si Sa Ket in Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.

Air quality in Si Sa Ket is worst in March — around 58 µg/m³ PM2.5 (unhealthy), about 3.1× the cleanest month (December, 19 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	29	45	58	43	28	21	23	23	27	28	22	19
Level	Moderate	Poor	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	29	Moderate
Feb	45	Poor
Mar	58	Unhealthy
Apr	43	Poor
May	28	Moderate
Jun	21	Moderate
Jul	23	Moderate
Aug	23	Moderate
Sep	27	Moderate
Oct	28	Moderate
Nov	22	Moderate
Dec	19	Moderate

Location & terrain

Where is Si Sa Ket?

Si Sa Ket sits at 15.1°N, 104.3°E, 134 m above sea level, in Thailand. The nearest listed city is Ubon Ratchathani, 57 km away.

Topography around Si Sa Ket

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

Within 3 km, the terrain around Si Sa Ket has only modest variations in elevation — a maximum elevation change of 32 m around an average of 126 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 45 m; within 80 km, significant variations in elevation — a maximum elevation change of 557 m.

The land around Si Sa Ket is covered by trees (47%) and artificial surfaces (31%) within 3 km, cropland (70%) within 16 km, and cropland (71%) and trees (25%) within 80 km.

3 km

32 m

trees 47%

16 km

45 m

cropland 70%

80 km

557 m

cropland 71%

treesgrasslandcroplandartificial surfaceswater

← Winter Si Sa Ket year-round climate Summer →

Spring weather nearby: Ubon Ratchathani 57 km · Warin Chamrap 58 km · Kantharalak 63 km · Yasothon 78 km · Det Udom 84 km · Amnat Charoen 89 km · Surin 93 km · Phibun Mangsahan 98 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

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 Si Sa Ket (15.1148°, 104.3294°, elevation 134 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.