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Has the climate in Pekanbaru changed?

Pekanbaru has warmed about 1.6°F between 1975 and 2024.

About 0.4°F per decade, measured from Pekanbaru's official daily weather records, 1975–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Pekanbaru's warming is broadly in line with other cities in Indonesia — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
about the same
1970s
0 / yr
Recent
0 / yr
Winters about as cold as before
Average temperature
+1.2°F
1970s
80.3°F
Recent
81.6°F
A steady upward drift
Hot days above 90°F
110 more days
1970s
99 / yr
Recent
209 / yr
More days of serious heat
Rainy days
39 fewer days
1970s
45 / yr
Recent
6 / yr
Drier on average

Pekanbaru's temperature, year by year

Average temperature for each year from 1975 to 2024.

78°80°82°84°1975: 81.1°F1976: 80.5°F1977: 80.4°F1978: 80.1°F1979: 80.4°F1980: 80.5°F1981: 80.4°F1982: 79.8°F1983: 80.7°F1984: 79.3°F1985: 79.9°F1986: 79.8°F1993: 80.9°F1994: 81.2°F1995: 81.1°F1996: 80.7°F1997: 80.8°F1998: 82.2°F1999: 80.8°F2000: 81.4°F2001: 81.5°F2002: 81.7°F2003: 81.7°F2004: 81.8°F2005: 82.2°F2006: 81.8°F2007: 81.6°F2008: 82.5°F2009: 82.7°F2010: 83.1°F2011: 82.2°F2012: 82.3°F2013: 82.6°F2014: 81.6°F2015: 81.5°F2016: 82.0°F2017: 81.3°F2018: 81.4°F2019: 81.9°F2020: 81.5°F2021: 80.8°F2022: 80.4°F2023: 80.9°F2024: 81.6°Flong-term trend197519802000201020202024
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

In day-to-day terms, that long-term shift shows up as about 92 more days above 90°F compared with the 1970s.

When in the year the change shows up

How much warmer each month is now than in the 1970s. Useful if you garden or care about a particular season — otherwise the headline above already has the answer.

0.0°+0.5°+1.0°+1.5°+2.0°January: +1.6°F+1.6JFebruary: +1.8°F+1.8FMarch: +1.7°F+1.7MApril: +0.9°F+0.9AMay: +1.6°F+1.6MJune: +1.2°F+1.2JJuly: +0.8°F+0.8JAugust: +1.5°F+1.5ASeptember: +1.8°F+1.8SOctober: +0.6°F+0.6ONovember: +0.9°F+0.9NDecember: +1.2°F+1.2D

February has warmed the most — about 1.8°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — 1991–2020 normals computed from 26 years of daily observations at Sultan Syarif Kasim II, a weather station, about 6 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →