Monthly Climate
Menu

Best time to visit Semarang

August is the best time to visit Semarang for general sightseeing, with average highs of 31 °C and about 4 wet days. The comfortable season runs roughly June to September.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking August comfort 69/100
A beach holiday August sea 29 °C
The least cloud August 52 % average cloud cover
The least rain August 24 mm
Warmth September 32 °C
Cooler weather February 28 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 August 69 31 °C 4 87
2 July 69 31 °C 6 84
3 September 66 32 °C 6 80
4 June 62 30 °C 11 74
5 May 54 30 °C 16 64
6 January 53 28 °C 29 70
7 February 53 28 °C 27 71
8 October 53 31 °C 15 61
9 March 51 29 °C 28 69
10 December 51 29 °C 29 67
11 April 49 29 °C 25 66
12 November 48 30 °C 25 64

For a beach holiday

August scores highest, with a sea temperature of 29 °C and air temperatures around 31 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 29 °C 28 °C 91 % 70
February 29 °C 28 °C 92 % 71
March 29 °C 29 °C 86 % 69
April 30 °C 29 °C 79 % 66
May 30 °C 30 °C 63 % 64
June 29 °C 30 °C 57 % 74
July 29 °C 31 °C 54 % 84
August 29 °C 31 °C 52 % 87
September 29 °C 32 °C 58 % 80
October 29 °C 31 °C 69 % 61
November 30 °C 30 °C 83 % 64
December 30 °C 29 °C 91 % 67

When to think twice

November scores lowest with about 25 wet days and highs near 30 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 27.8 °C 375 mm 91 %
February 27.8 °C 339 mm 92 %
March 28.5 °C 323 mm 86 %
April 29.2 °C 223 mm 79 %
May 29.8 °C 102 mm 63 %
June 30.2 °C 58 mm 57 %
July 30.7 °C 38 mm 54 %
August 31.4 °C 24 mm 52 %
September 32.0 °C 44 mm 58 %
October 31.5 °C 135 mm 69 %
November 29.9 °C 266 mm 83 %
December 28.5 °C 398 mm 91 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.