Manado/Ratulangi Intl climate by month
Averages and records for each calendar month at Manado/Ratulangi Intl, Indonesia, from 1964 to 2025. The warmest month is September, averaging 32.5°C; the coolest is February at 29.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 30.0°C | 22.7°C | 33.2°C22 January 1988 | 18.1°C13 January 2003 | 10 / 40 |
| February | 29.8°C | – | 33.0°C16 February 2025 | 18.0°C10 February 1999 | 10 / 45 |
| March | 30.5°C | – | 36.0°C28 March 1988 | 19.0°C12 March 1980 | 10 / 42 |
| April | 31.2°C | 21.2°C | 37.0°C26 April 1981 | 19.6°C30 April 1997 | 12 / 43 |
| May | 31.9°C | 22.2°C | 35.1°C15 May 2020 | 17.6°C29 May 2001 | 13 / 42 |
| June | 31.7°C | 21.6°C | 34.6°C1 June 2022 | 17.8°C10 June 1997 | 15 / 42 |
| July | 31.8°C | – | 35.2°C25 July 2025 | 17.0°C20 July 2013 | 14 / 43 |
| August | 32.4°C | 20.6°C | 35.4°C25 August 1987 | 16.0°C17 August 1981 | 14 / 43 |
| September | 32.5°C | 21.4°C | 38.4°C15 September 1996 | 14.8°C4 September 1997 | 11 / 43 |
| October | 32.1°C | – | 37.0°C6 October 1981 | 16.4°C10 October 1997 | 12 / 42 |
| November | 31.4°C | – | 34.6°C28 November 2015 | 19.0°C6 November 1980 | 18 / 40 |
| December | 30.5°C | – | 33.7°C9 December 2020 | 20.0°C3 December 1979 | 11 / 42 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 10 to 18 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.