Cilacap in Winter
In winter (June, July and August), Cilacap sees average daytime highs around 27°C and overnight lows near 25°C, with 300 mm of rain over about 54 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Across winter, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 33% of the time across winter, and the air most often feels oppressive.
Winter is Cilacap's best season of the year to visit on our travel score. Cilacap has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Cilacap's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 300 mm
- 54 wet days
- Avg wind
- 16 km/h
- Travel score
- 5.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Cilacap in Winter
Across winter, daytime highs hold fairly steady around 27°C.
A typical winter day in Cilacap reaches about 27°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How winter really feels in Cilacap
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Cilacap weather by month
How the three winter months (June, July and August) 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 | 28° / 26° | 316 | 28.2 | 12.4 | 3.6 |
| Feb | 28° / 26° | 240 | 25 | 12.3 | 3.6 |
| Mar | 28° / 26° | 259 | 27.9 | 12.1 | 3.4 |
| Apr | 28° / 26° | 206 | 27 | 11.8 | 3.4 |
| May | 28° / 26° | 162 | 25 | 11.7 | 4.0 |
| Jun | 28° / 25° | 127 | 21.4 | 11.6 | 4.8 |
| Jul | 27° / 25° | 101 | 17.7 | 11.6 | 5.5 |
| Aug | 26° / 24° | 72 | 15.3 | 11.7 | 6.0 |
| Sep | 26° / 24° | 110 | 17.9 | 12 | 5.4 |
| Oct | 27° / 25° | 221 | 23.4 | 12.2 | 4.6 |
| Nov | 27° / 25° | 365 | 27.5 | 12.4 | 3.6 |
| Dec | 28° / 26° | 394 | 28.1 | 12.4 | 3.5 |
Cloud cover in Winter
The sky is clear or mostly clear about 33% of the time across winter.
Chance of precipitation in Winter
Cilacap gets around 300 mm of rain over 54 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 16 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 36 min in early June to 11 h 48 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.9 kWh/m².
Hazard calendar for Cilacap
None of Cilacap's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Cilacap sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Cilacap's rainy season runs October–April, when most of the year's rain falls.
Is winter a good time to visit Cilacap?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Cilacap for sightseeing.
What to pack for Cilacap in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Cilacap sees daytime highs around 27°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 54 days see rain.
Sea temperature near Cilacap in Winter
The nearest coast averages about 27°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 21 km away) is warmest in April at about 29°C and coldest in August near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 26 | 27 | 28 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 28 | Warm |
| Jul | 27 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 29 | Tropical |
UV index in Cilacap in Winter
Clear-sky midday UV across winter averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Cilacap peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 14 at about 7 (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) | 14 | 14 | 15 | 12 | 9 | 7 | 10 | 11 | 12 | 13 | 9 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | Very high | Extreme | Extreme | Extreme | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 9 | Very high |
| Jun | 7 | High |
| Jul | 10 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 9 | Very high |
| Dec | 12 | Extreme |
Air quality in Cilacap in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Cilacap is worst in May — around 46 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 39 | 39 | 41 | 44 | 46 | 43 | 37 | 31 | 30 | 31 | 32 | 33 |
| Level | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 39 | Poor |
| Feb | 39 | Poor |
| Mar | 41 | Poor |
| Apr | 44 | Poor |
| May | 46 | Poor |
| Jun | 43 | Poor |
| Jul | 37 | Poor |
| Aug | 31 | Moderate |
| Sep | 30 | Moderate |
| Oct | 31 | Moderate |
| Nov | 32 | Moderate |
| Dec | 33 | Moderate |
Where is Cilacap?
Cilacap sits at 7.7°S, 109.0°E, 10 m above sea level, in Indonesia. The nearest listed city is Wangon, 24 km away.
Topography around Cilacap
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cilacap.
Within 3 km, the terrain around Cilacap has only modest variations in elevation — a maximum elevation change of 123 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 209 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.
The land around Cilacap is covered by artificial surfaces (42%) and water (36%) within 3 km, water (51%) and trees (24%) within 16 km, and trees (49%) and water (35%) within 80 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
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 Cilacap (-7.7264°, 109.0094°, elevation 10 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.