Tainan weather in 2025
Tainan weather in 2025, with 365 daily observations from Open-Meteo archive data.
Interactive graph
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Use the graph view to inspect 2025 alongside other available years for Tainan.
Year summary
In 2025, Tainan averaged 28.3 C for daily highs and 20.8 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was -0.2 C from that baseline, and total precipitation was -54.4 mm from the baseline total.
The warmest month was October, with an average high of 32.4 C, while January had the lowest average low at 12.6 C.
The wettest month was July, totaling 660.9 mm. The hottest day reached 34.4 C on October 14, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 12.6 | 21.6 | 25.7 | 31 |
| February | 13.6 | 22.1 | 63.3 | 28 |
| March | 16.3 | 25.1 | 69.9 | 31 |
| April | 20.8 | 28.7 | 38.9 | 30 |
| May | 23.9 | 31.1 | 175.6 | 31 |
| June | 25.4 | 31.3 | 379.1 | 30 |
| July | 25.2 | 30.3 | 660.9 | 31 |
| August | 25.1 | 30.7 | 296.0 | 31 |
| September | 25.5 | 31.7 | 116.8 | 30 |
| October | 24.6 | 32.4 | 32.8 | 31 |
| November | 20.1 | 28.3 | 64.1 | 30 |
| December | 16.5 | 25.9 | 9.5 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | October 14, 2025 | 34.4 C |
| Coldest night | January 13, 2025 | 7.8 C |
| Wettest day | June 13, 2025 | 109.8 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.