Semarang climate: monthly averages: annual mean temperature 26.9 C; warmest month Oct (28.6 C); coldest month Feb (26.0 C).
Annual mean temperature: 26.9 C
Warmest month: Oct (28.6 C)
Coldest month: Feb (26.0 C)
Wettest month: Feb (12.35 mm/day)
All-time record high: 38.9 C
All-time record low: 18.4 C
One page for Semarang climate: monthly averages, sourced from public APIs and refreshed automatically. Expect 26.0 C at the coldest (Feb) and 28.6 C at the warmest (Oct) — a 2.6 C spread. Expect a wet season rather than rain year-round: Feb brings 12.35 mm/day against 0.98 mm/day in Aug. Taken together that is roughly 2,067 mm of rain a year for the grid cell. The build runs on a schedule and caches the last good response, so the numbers stay put even when the upstream API is having a bad day. Exact monthly values are in the table; links below cover adjacent locations and years.
Annual mean temperature 26.9 C
Warmest month Oct (28.6 C)
Coldest month Feb (26.0 C)
Wettest month Feb (12.35 mm/day)
All-time record high 38.9 C
All-time record low 18.4 C
Annual precipitation 2,055 mm / year
Coordinates -6.99306, 110.42083
Population 1,694,740
Average monthly temperature and rainfall in Semarang
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
26.2
11.42
33.2
22.2
Feb
26.0
12.35
31.7
22.3
Mar
26.4
6.58
32.1
22.2
Apr
26.6
6.22
31.9
21.6
May
26.4
4.27
31.8
20.0
Jun
26.0
2.90
33.1
19.2
Jul
26.1
1.60
35.2
18.4
Aug
27.2
0.98
36.9
19.4
Sep
28.4
2.24
38.3
20.2
Oct
28.6
3.81
38.9
21.2
Nov
27.6
6.82
38.5
22.6
Dec
26.6
8.81
34.9
21.3
What the Semarang climate table shows
Values are multi-decadal climatological averages for the -6.99306, 110.42083 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
How much rain is 12.35 mm/day in a month?
Rain is recorded as a daily mean, so 12.35 mm/day is roughly 375 mm across a 30-day month.
Does Semarang get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.