Climate Insights for Sidareja

Kabupaten Cilacap, Provinsi Jawa Tengah, Indonesia

Hottest
July
37°C peak
Coldest
May
17°C low
Wettest
November
33mm rain
Best to Visit
January, February, March
Mild temps & low rain

Climate Overview

The climate in Sidareja is warm and mild. The average annual temperature is 24°C and approximately 172mm of precipitation falls per year. November is the wettest month, receiving around 33mm of rainfall. Sidareja sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 21° Average: 20° Min: 19° Feb Max: 20° Average: 19° Min: 19° Mar Max: 20° Average: 19° Min: 19° Apr Max: 20° Average: 19° Min: 19° May Max: 18° Average: 17° Min: 17° Jun Max: 24° Average: 22° Min: 19° Jul Max: 37° Average: 29° Min: 20° Aug Max: 35° Average: 29° Min: 23° Sep Max: 35° Average: 29° Min: 25° Oct Max: 32° Average: 28° Min: 25° Nov Max: 28° Average: 27° Min: 27° Dec Max: 26° Average: 26° Min: 25°
Max
Average
Min

Sidareja sees moderate temperature variation throughout the year, ranging from 17°C to 37°C. July is the hottest month, with daytime highs reaching 37°C and an average of 29°C. May is the coolest month, with minimum temperatures around 17°C and an average of 17°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between June and July, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 24mm Feb Precipitation: 23mm Mar Precipitation: 33mm Apr Precipitation: 13mm May Precipitation: 0mm Jun Precipitation: 0mm Jul Precipitation: 0mm Aug Precipitation: 5mm Sep Precipitation: 2mm Oct Precipitation: 33mm Nov Precipitation: 33mm Dec Precipitation: 6mm
Precipitation

Sidareja is a quite dry location, receiving approximately 172mm of precipitation annually, which averages out to around 14mm per month. The wettest month is March, averaging 33mm of rainfall. October and November also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 33mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 7km/h Feb Wind Speed: 7km/h Mar Wind Speed: 6km/h Apr Wind Speed: 5km/h May Wind Speed: 5km/h Jun Wind Speed: 6km/h Jul Wind Speed: 3km/h Aug Wind Speed: 5km/h Sep Wind Speed: 3km/h Oct Wind Speed: 3km/h Nov Wind Speed: 9km/h Dec Wind Speed: 7km/h
Wind Speed

Sidareja is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 5km/h in winter, 5km/h in spring, 7km/h in summer, 5km/h in autumn.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

23 days until Spring

It is currently winter in Sidareja, which began on June 21, 2026. Sidareja sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in July at around 37°C, while the coldest stretch bottoms out in May near 17°C. Spring is next, beginning on September 23, 2026 — 23 days from now.

Spring

Temperatures range from 25 to 35°C. Rainfall is relatively light, with around 68mm over the season and a monthly average of 23mm. Winds are generally light, averaging 5km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 19 to 26°C. Rainfall is relatively light, with around 53mm over the season and a monthly average of 18mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 17 to 20°C. Precipitation is minimal, with only around 46mm for the entire season. Winds are generally light, averaging 5km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 19 to 37°C. Precipitation is minimal, with only around 6mm for the entire season. Winds are generally light, averaging 5km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 20°
Feb 19°
Mar 19°
Apr 19°
May 17°
Jun 22°
Jul 29°
Aug 29°
Sep 29°
Oct 28°
Nov 27°
Dec 26°

The best time to visit Sidareja is during January, February, March, April, May and June, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 16mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 37°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Sidareja based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
19 °C
21 °C
7 km/h
24 mm
0 cm
Feb
19 °C
20 °C
7 km/h
23 mm
0 cm
Mar
19 °C
20 °C
6 km/h
33 mm
0 cm
Apr
19 °C
20 °C
5 km/h
13 mm
0 cm
May
17 °C
18 °C
5 km/h
0 mm
0 cm
Jun
19 °C
24 °C
6 km/h
0 mm
0 cm
Jul
20 °C
37 °C
3 km/h
0 mm
0 cm
Aug Current
23 °C
35 °C
5 km/h
5 mm
0 cm
Sep
25 °C
35 °C
3 km/h
2 mm
0 cm
Oct
25 °C
32 °C
3 km/h
33 mm
0 cm
Nov
27 °C
28 °C
9 km/h
33 mm
0 cm
Dec
25 °C
26 °C
7 km/h
6 mm
0 cm
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Metric (°C, km/h)