Palmas weather in December
In December, Palmas has daytime highs averaging 30 °C, nights around 23 °C, with 25 wet days. Figures are 1991–2020 climate normals.
- 30.3°C Average high
- 22.9°C Average low
- 25days Wet days
- 292mm Rainfall
- 13h Daylight
Daily temperatures through December
How December develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 December | 30.6 °C | 23.1 °C | 73 % |
| 11–20 December | 30.1 °C | 22.9 °C | 85 % |
| 21–31 December | 30.1 °C | 22.9 °C | 84 % |
- Rain is most likely over days 11–20 of December (85 % of days) and least likely over days 1–10 (73 %).
What to expect
| Measure | Typical December | Share of the month |
|---|---|---|
| Days above 25 °C | 31 of 31 | 99 % |
| Days above 30 °C | 18 of 31 | 58 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 25 of 31 | 80 % |
Conditions in December
| Measure | Average |
|---|---|
| Mean temperature | 26 °C |
| Record high (1991–2020) | 36 °C |
| Record low (1991–2020) | 21 °C |
| Relative humidity | 82 % |
| Wind speed | 8.7 km/h |
| Cloud cover | 80 % |
Where Palmas ranks in December
| Ranking | Position | Value |
|---|---|---|
| The warmest places in South America in December | 45thof 50 | 30 °C |
December compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 29.7 °C | 340 mm | 81 % |
| February | 29.8 °C | 304 mm | 83 % |
| October | 33.2 °C | 129 mm | 62 % |
| November | 30.9 °C | 238 mm | 79 % |
| December | 30.3 °C | 292 mm | 80 % |
See all twelve months for Palmas
- December is the 9th warmest month here.
- It is the 9th driest month of the year.
- It ranks 9th for least cloud cover.
- Days last about 13 hours from sunrise to sunset.
- It rains on 25 of 31 days — 80 % of the month.
- Nights are about 7.4 °C cooler than the middle of the day.
- The hottest December day on record since 1991 reached 36 °C, 6.1 °C above the usual daytime high.
Nearby destinations in December
QuestionsDecember in Palmas, answered
How warm is Palmas in December?
Daily highs average 30 °C and nights fall to about 23 °C, a spread of 7.4 °C between afternoon and dawn. That makes December the 9th warmest month of the year here.
Does it rain much in Palmas in December?
December averages 292 mm of rain, spread over about 25 of the 31 days — 80 % of the month. Cloud cover averages 80 % of the sky.
How long are the days in December?
Palmas averages 13 hours between sunrise and sunset in December. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- 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: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. 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.