Trenggalek weather in May

In May, Trenggalek sees average daytime highs of 29°C and overnight lows near 22°C, with 112 mm of rain across 18.4 wet days and about 11.6 hours of daylight. It is the 8th-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 14% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 36 min by month's end. Set against the rest of the year, May is Trenggalek's 4th-clearest and 7th-windiest month. For the whole year in context, see Trenggalek's year-round climate.

Daytime high
29°
8th warmest
Overnight low
22°
6th coldest
Rainfall
112 mm
18.4 wet days
Daylight
11 h 36 min
5:40 AM – 5:18 PM
Cloud cover
68%
4th clearest
Wind
5 km/h
7th windiest
Solar energy
4.82 kWh/m²
Travel score
4.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Trenggalek reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How May really feels in Trenggalek

Once humidity and wind are folded in, May averages 29 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
29
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Trenggalek weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°36428.812.42.8
Feb30° / 22°3512712.32.7
Mar30° / 23°33628.712.12.8
Apr30° / 23°23026.211.83.0
May29° / 22°11218.411.64.3
Jun29° / 21°7113.511.55.1
Jul28° / 20°429.611.66.3
Aug28° / 20°287.711.76.5
Sep29° / 21°539.9125.5
Oct29° / 22°1231912.24.1
Nov30° / 23°27226.212.43.0
Dec30° / 23°36028.212.52.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22872
32872
42872
52872
62872
72872
83070
93070
103169
113268
123268
133466
143565
153664
163763
173961
183961
194060
204159
214258
224258
234258
244258
254357
264357
274357
284357
294258
304258
314159

Chance of precipitation in May

Any precipitation

Trenggalek gets around 112 mm of rain over 18.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 59% and peaks near 71% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
171
270
369
468
567
667
766
865
964
1063
1162
1261
1360
1459
1558
1658
1757
1856
1955
2055
2155
2254
2354
2454
2553
2653
2752
2852
2952
3051
3151

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
104933
204933
305923
406904
506904
607894
708884
808884
909874
1009874
11010864
12011854
13011854
14012844
15012844
16013834
17013834
18014833
19014833
20014833
21115822
22115822
23115822
24116812
25116812
26116821
27117811
28117811
29117811
30118801
31118801

Wind in May

Winds average 5 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 5:39 AM to 5:44 AM, and sunset from 5:22 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:395:22
211.75:395:22
311.75:395:21
411.75:395:21
511.75:395:21
611.75:395:20
711.75:395:20
811.75:395:20
911.75:395:20
1011.75:405:19
1111.75:405:19
1211.75:405:19
1311.65:405:19
1411.65:405:19
1511.65:405:19
1611.65:405:18
1711.65:415:18
1811.65:415:18
1911.65:415:18
2011.65:415:18
2111.65:415:18
2211.65:425:18
2311.65:425:18
2411.65:425:18
2511.65:425:18
2611.65:425:18
2711.65:435:18
2811.65:435:18
2911.65:435:18
3011.65:435:18
3111.65:445:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.53 kWh/m² to a high of 5.7 kWh/m² in October across the year — May's 4.82 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.6Bright
314.6Bright
Planning a trip in May

Hazard calendar for Trenggalek

In seasonPeak

None of Trenggalek's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Trenggalek sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Trenggalek's monsoon runs November–April, when most of the year's rain falls.

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

Is May a good time to visit Trenggalek?

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

4.3
Sightseeing
5th-best month of the year
5.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Trenggalek for sightseeing.

What to pack for Trenggalek in May

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

In May, Trenggalek sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Trenggalek in May

The nearest coast averages about 28°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 34 km away) is warmest in March at about 29°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov28Warm
Dec29Tropical

UV index in Trenggalek in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Trenggalek peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 14UV 15Jun 16UV 7
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May10Very high
Jun7High
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov10Extreme
Dec13Extreme

Air quality in Trenggalek in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Trenggalek is worst in April — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 2133 µg/m³Sep 1723 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb25Moderate
Mar29Moderate
Apr34Moderate
May33Moderate
Jun31Moderate
Jul27Moderate
Aug24Moderate
Sep23Moderate
Oct24Moderate
Nov25Moderate
Dec23Moderate
Location & terrain

Where is Trenggalek?

Trenggalek sits at 8.1°S, 111.7°E, 113 m above sea level, in Indonesia. The nearest listed city is Boyolangu, 21 km away.

Topography around Trenggalek

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

Within 3 km, the terrain around Trenggalek has significant variations in elevation — a maximum elevation change of 347 m around an average of 128 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 973 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,227 m.

The land around Trenggalek is covered by trees (49%) and cropland (31%) within 3 km, trees (80%) within 16 km, and trees (52%) and water (25%) within 80 km.

3 km
347 m
16 km
973 m
80 km
3,227 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Boyolangu 21 km · Tulungagung 22 km · Kedungwaru 23 km · Ngunut 34 km · Ponorogo 35 km · Kediri 45 km · Gampengrejo 50 km · Blitar 51 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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 Trenggalek (-8.0764°, 111.7064°, elevation 113 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).