Kathu weather in April

In April, Kathu sees average daytime highs of 29°C and overnight lows near 27°C, with 126 mm of rain across 18.1 wet days and about 12.2 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 22% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 18 min by month's end. Set against the rest of the year, April is Kathu's 4th-clearest and 12th-windiest month. For the whole year in context, see Kathu's year-round climate.

Daytime high
29°
1st warmest
Overnight low
27°
12th coldest
Rainfall
126 mm
18.1 wet days
Daylight
12 h 12 min
6:22 AM – 6:32 PM
Cloud cover
67%
4th clearest
Wind
12 km/h
12th windiest
Solar energy
6.24 kWh/m²
Travel score
4.4
out of 10

Kathu is town in Phuket province, Thailand.

Founded
1957

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 29°C through the month.

A typical April day in Kathu reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, April runs on par with March and on par with May.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292927
302927

How April really feels in Kathu

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
heat index over the day's high
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.

Kathu weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°528.111.66.3
Feb28° / 26°234.411.76.6
Mar29° / 27°8410.911.95.6
Apr29° / 27°12618.112.24.4
May29° / 27°24724.812.43.5
Jun29° / 27°22421.812.53.8
Jul28° / 27°21922.512.43.9
Aug28° / 27°24122.612.34.0
Sep28° / 26°28624.8123.9
Oct28° / 26°30327.411.83.7
Nov28° / 26°20021.611.64.4
Dec28° / 26°8912.111.55.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24258
34159
44159
54060
64060
74060
84060
94060
104060
114159
124159
134159
144159
154060
164060
174060
183862
193763
203763
213664
223466
233367
243268
253169
262971
272872
282773
292674
302575

Chance of precipitation in April

Any precipitation

Kathu gets around 126 mm of rain over 18.1 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 60% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
151
251
351
452
552
652
752
852
952
1052
1153
1253
1354
1455
1556
1657
1758
1860
1961
2063
2165
2266
2367
2469
2570
2671
2772
2873
2974
3075

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15149
24951
34852
44753
54555
64456
74357
84159
94060
103862
113664
123466
133268
143070
152872
162773
172575
182377
192179
202080
211882
221783
231684
241585
251486
261387
271288
281288
291189
301090

Wind in April

Winds average 12 km/h in April, the calmest month.

Across April, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2913light breeze
3013light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over April. Sunrise moves from 6:29 AM to 6:16 AM, and sunset from 6:33 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:296:33
212.16:296:33
312.16:286:33
412.16:286:33
512.16:276:33
612.16:276:33
712.16:266:33
812.16:266:33
912.16:256:33
1012.16:256:32
1112.16:246:32
1212.16:246:32
1312.26:236:32
1412.26:236:32
1512.26:226:32
1612.26:226:32
1712.26:216:32
1812.26:216:32
1912.26:206:32
2012.26:206:32
2112.26:196:32
2212.26:196:32
2312.26:196:32
2412.26:186:32
2512.26:186:32
2612.26:176:32
2712.26:176:32
2812.36:176:32
2912.36:166:32
3012.36:166:32

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.24 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 6.49 kWh/m² in March across the year — April's 6.24 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.1Intense
236.1Intense
246.1Intense
256.0Intense
266.0Intense
276.0Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in April

Hazard calendar for Kathu

In seasonPeak

In April, Kathu sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Kathu sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Kathu's rainy season runs May–November, when most of the year's rain falls.

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

Is April a good time to visit Kathu?

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

4.4
Sightseeing
5th-best month of the year
5.6
Beach & pool
5th-best month of the year

April is a reasonable time to visit Kathu for sightseeing.

What to pack for Kathu in April

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

In April, Kathu sees daytime highs around 29°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Kathu in April

The nearest coast averages about 30°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in May at about 30°C and coldest in January near 28°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
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Kathu in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kathu peaks around August 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeAug 23UV 13Nov 23UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Kathu 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 Kathu is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2216 µg/m³Nov 1211 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May12Moderate
Jun13Moderate
Jul13Moderate
Aug11Good
Sep12Good
Oct11Good
Nov11Good
Dec12Good
Location & terrain

Where is Kathu?

Kathu sits at 7.9°N, 98.3°E, 36 m above sea level, in Thailand. The nearest listed city is Wichit, 7.0 km away.

Topography around Kathu

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

Within 3 km, the terrain around Kathu has significant variations in elevation — a maximum elevation change of 521 m around an average of 135 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Kathu is covered by trees (73%) within 3 km, water (52%) and trees (33%) within 16 km, and water (75%) and trees (21%) within 80 km.

3 km
521 m
16 km
536 m
80 km
1,369 m
treesgrasslandartificial surfaceswatermangroves
April weather nearby: Wichit 7.0 km · Ban Talat Nua 7.0 km · Ban Kamala 7.0 km · Ban Ratsada 8.0 km · Phuket 8.0 km · Ban Chalong 8.0 km · Ban Talat Yai 8.0 km · Ban Ko Sire 11 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 Kathu (7.9178°, 98.3332°, elevation 36 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).