Sumenep weather in December

In December, Sumenep sees average daytime highs of 29°C and overnight lows near 26°C, with 276 mm of rain across 28.1 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 2nd-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 4% of the time in December, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is Sumenep's 10th-clearest and 9th-windiest month. For the whole year in context, see Sumenep's year-round climate.

Daytime high
29°
7th warmest
Overnight low
26°
6th coldest
Rainfall
276 mm
28.1 wet days
Daylight
12 h 24 min
5:09 AM – 5:33 PM
Cloud cover
86%
10th clearest
Wind
10 km/h
9th windiest
Solar energy
5.23 kWh/m²
Travel score
3.0
out of 10

Sumenep is district in Sumenep Regency, East Java Province, Indonesia.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

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

A typical December day in Sumenep reaches about 29°C in the afternoon and slips back to 26°C overnight — a 4°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, December runs about 1°C cooler than November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13026
23026
33026
43026
53026
63026
73026
83026
93026
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926
312926

How December really feels in Sumenep

Once humidity and wind are folded in, December averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Sumenep weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 26°29329.312.43.0
Feb29° / 26°25026.612.23.0
Mar29° / 26°22627.2123.2
Apr30° / 26°1752211.93.7
May30° / 27°8212.311.74.9
Jun29° / 26°527.711.65.7
Jul29° / 26°223.711.66.5
Aug29° / 26°20.611.86.8
Sep30° / 26°111.5126.1
Oct31° / 26°386.412.25.0
Nov30° / 26°12517.612.33.8
Dec29° / 26°27628.112.43.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 87%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21783
31783
41684
51585
61585
71585
81486
91486
101387
111387
121387
131387
141288
151189
161189
171189
181090
191090
201090
211090
221090
231090
241090
251090
261189
271189
281189
291288
301288
311288

Chance of precipitation in December

Any precipitation

Sumenep gets around 276 mm of rain over 28.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 91% and peaks near 94% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
182
283
384
485
586
687
788
889
990
1091
1192
1292
1393
1493
1593
1694
1793
1893
1993
2093
2193
2292
2392
2492
2592
2692
2792
2892
2993
3093
3193

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the miserable band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14852
24753
34654
44456
54357
64258
74060
83961
93862
103763
113664
123565
133466
143466
153367
163367
173367
183367
193367
203367
213367
223367
233367
243367
253367
263367
273466
283466
293466
303466
313466

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2512calm
2612calm
2712light breeze
2812light breeze
2912light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:03 AM to 5:16 AM, and sunset from 5:26 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:035:26
212.45:035:26
312.45:045:27
412.45:045:27
512.45:045:28
612.45:055:28
712.45:055:28
812.45:055:29
912.45:065:29
1012.45:065:30
1112.45:065:30
1212.45:075:31
1312.45:075:31
1412.45:085:32
1512.45:085:32
1612.45:095:33
1712.45:095:33
1812.45:095:34
1912.45:105:34
2012.45:105:35
2112.45:115:35
2212.45:115:36
2312.45:125:36
2412.45:125:37
2512.45:135:37
2612.45:135:38
2712.45:145:38
2812.45:145:38
2912.45:155:39
3012.45:155:39
3112.45:165:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.23 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.23 kWh/m² to a high of 7.01 kWh/m² in September across the year — December's 5.23 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Hazard calendar for Sumenep

In seasonPeak

In December, Sumenep sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

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

Sumenep's monsoon runs December–April, when most of the year's rain falls.

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

Is December a good time to visit Sumenep?

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

3.0
Sightseeing
10th-best month of the year
4.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Sumenep.

What to pack for Sumenep in December

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

In December, Sumenep sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Sumenep in December

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

The sea at the nearest coast (about 13 km away) is warmest in November at about 30°C and coldest in August 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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Sumenep in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Sumenep peaks around March 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 14Jun 17UV 9
UV index (midday)Level
Jan10Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun8Very high
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec13Extreme

Air quality in Sumenep in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sumenep is worst in October — around 24 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (February, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateModerateOct 1823 µg/m³Feb 1812 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb12Good
Mar13Moderate
Apr12Good
May13Moderate
Jun13Moderate
Jul12Moderate
Aug13Moderate
Sep17Moderate
Oct24Moderate
Nov19Moderate
Dec16Moderate
Location & terrain

Where is Sumenep?

Sumenep sits at 7.0°S, 113.9°E, 8 m above sea level, in Indonesia. The nearest listed city is Kalianget, 10 km away.

Topography around Sumenep

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

Within 3 km, the terrain around Sumenep has only modest variations in elevation — a maximum elevation change of 115 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 334 m; within 80 km, large variations in elevation — a maximum elevation change of 1,128 m.

The land around Sumenep is covered by cropland (31%), trees (27%) and artificial surfaces (25%) within 3 km, trees (44%) and water (22%) within 16 km, and water (80%) within 80 km.

3 km
115 m
16 km
334 m
80 km
1,128 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Kalianget 10 km · Pamekasan 46 km · Sampang 71 km · Panarukan 77 km · Situbondo 79 km · Balung 81 km · Besuki 82 km · Panji 84 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 Sumenep (-7.0115°, 113.8604°, elevation 8 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).