Tha Bo weather in April

In April, Tha Bo sees average daytime highs of 35°C and overnight lows near 25°C, with 72 mm of rain across 11.7 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 41% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 36 min by month's end. Set against the rest of the year, April is Tha Bo's 6th-clearest and 5th-windiest month. For the whole year in context, see Tha Bo's year-round climate.

Daytime high
35°
1st warmest
Overnight low
25°
7th coldest
Rainfall
72 mm
11.7 wet days
Daylight
12 h 24 min
5:58 AM – 6:22 PM
Cloud cover
51%
6th clearest
Wind
6 km/h
5th windiest
Solar energy
6.08 kWh/m²
Travel score
2.4
out of 10

Tha Bo is town in Nong Khai province, Thailand.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical April day in Tha Bo reaches about 35°C in the afternoon and slips back to 25°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 39°C. Set against its neighbours, April runs about 1°C warmer than March and about 1°C warmer than May.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13524
23524
33524
43524
53524
63524
73524
83524
93524
103525
113525
123525
133525
143525
153525
163525
173525
183525
193525
203525
213525
223525
233525
243525
253525
263525
273525
283525
293526
303526

How April really feels in Tha Bo

Once humidity and wind are folded in, April averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
24 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Tha Bo weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°101.6116.9
Feb32° / 19°142.311.45.4
Mar34° / 22°356.111.93.5
Apr35° / 25°7211.712.42.4
May34° / 26°23622.712.82.1
Jun33° / 26°25224.1132.2
Jul32° / 26°29525.3132.4
Aug32° / 25°34426.812.62.4
Sep32° / 25°27424.312.12.6
Oct31° / 24°9811.711.64.2
Nov30° / 21°212.811.25.9
Dec29° / 18°81.2117.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 22% of April, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17030
27129
37129
47129
57030
67030
76931
86931
96733
106733
116634
126535
136535
146436
156436
166436
176337
186238
196238
206139
216139
226040
236040
245941
255842
265644
275545
285446
295347
305149

Chance of precipitation in April

Any precipitation

Tha Bo gets around 72 mm of rain over 11.7 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 54% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
131
231
331
431
532
632
732
832
933
1033
1133
1234
1334
1435
1536
1637
1738
1840
1941
2042
2144
2245
2346
2447
2548
2649
2751
2852
2953
3054

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13731563
23730573
32629594
42628604
52527615
62526625
71526626
81424646
91423657
101422667
111421668
121320688
131319689
1413186810
1503186910
1602177011
1702167111
1802167012
1902157112
2001147213
2101147114
2201137115
2301127116
2401127017
2501117018
2601116820
2701106821
280196723
290196525
300186427

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over April. Sunrise moves from 6:10 AM to 5:48 AM, and sunset from 6:19 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:106:19
212.26:096:19
312.26:086:19
412.26:076:19
512.26:066:20
612.26:066:20
712.36:056:20
812.36:046:20
912.36:036:20
1012.36:026:21
1112.36:026:21
1212.36:016:21
1312.46:006:21
1412.45:596:22
1512.45:596:22
1612.45:586:22
1712.45:576:22
1812.45:566:22
1912.55:566:23
2012.55:556:23
2112.55:546:23
2212.55:536:23
2312.55:536:24
2412.55:526:24
2512.55:516:24
2612.65:516:25
2712.65:506:25
2812.65:506:25
2912.65:496:25
3012.65:486:26

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.08 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.08 kWh/m² in April across the year — April's 6.08 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Intense
266.0Bright
276.0Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in April

Hazard calendar for Tha Bo

In seasonPeak

In April, Tha Bo sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Tha Bo sits in the Pacific typhoon belt; the season peaks July–October.

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

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

Is April a good time to visit Tha Bo?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.4
Sightseeing
8th-best month of the year
5.2
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Tha Bo.

What to pack for Tha Bo in April

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

In April, Tha Bo sees daytime highs around 35°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Tha Bo in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tha Bo peaks around August 11 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 highAug 11UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Tha Bo in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tha Bo is worst in March — around 77 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (July, 23 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateMar 2376 µg/m³Jul 2123 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb44Poor
Mar77Unhealthy
Apr73Unhealthy
May32Moderate
Jun24Moderate
Jul23Moderate
Aug23Moderate
Sep24Moderate
Oct26Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Tha Bo?

Tha Bo sits at 17.9°N, 102.6°E, 182 m above sea level, in Thailand. The nearest listed city is Vientiane, 13 km away.

Topography around Tha Bo

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

Within 3 km, the terrain around Tha Bo has only modest variations in elevation — a maximum elevation change of 32 m around an average of 169 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 64 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,486 m.

The land around Tha Bo is covered by cropland (43%) and trees (28%) within 3 km, cropland (47%) and trees (32%) within 16 km, and trees (54%) and cropland (39%) within 80 km.

3 km
32 m
16 km
64 m
80 km
1,486 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Vientiane 13 km · Nong Khai 17 km · Nam Som 42 km · Kut Chap 47 km · Udon Thani 53 km · Phon Charoen 65 km · Na Klang 73 km · Nong Bua Lamphu 73 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 Tha Bo (17.85°, 102.5814°, elevation 182 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). 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).