December at a glance — Biratnagar
Climate-based estimate (10-year averages)Todayrain expected
Average values in December in Biratnagar
This page describes the typical weather in December: averages are calculated over the last 10 years. Dates within the next two weeks show the actual forecast. Days shown with a dashed border are climate-based estimates built from the last 10 years of observations, not an exact forecast.
Charts
Temperature chart: day and night
°C · Day of month
Precipitation chart
mm · Day of month
Humidity chart
% · Day of month
Wind speed chart
m/s · Day of month
Prevailing wind directions
Prevailing wind: NW · 23%
Sunny, mixed and rainy days
December 2026 · 31
Every day in December in Biratnagar
| Day | Night | Morning | Day | Evening | Precipitation | Wind | Humidity | Forecasts |
|---|---|---|---|---|---|---|---|---|
| 1 | +15° | +21° | +28° | +23° | — | 3.7 m/sSE | 45% | Climate-based estimate (10-year averages) |
| 2 | +14° | +19° | +25° | +20° | — | 3.7 m/sSW | 42% | Climate-based estimate (10-year averages) |
| 3 | +15° | +19° | +24° | +20° | — | 4.2 m/sSSE | 40% | Climate-based estimate (10-year averages) |
| 4 | +14° | +20° | +27° | +22° | — | 2.9 m/sNW | 37% | Climate-based estimate (10-year averages) |
| 5 | +12° | +18° | +25° | +20° | — | 4.2 m/sSW | 43% | Climate-based estimate (10-year averages) |
| 6 | +12° | +18° | +26° | +20° | — | 2.3 m/sENE | 33% | Climate-based estimate (10-year averages) |
| 7 | +11° | +18° | +26° | +20° | — | 2 m/sENE | 46% | Climate-based estimate (10-year averages) |
| 8 | +13° | +19° | +26° | +21° | — | 3.9 m/sNE | 37% | Climate-based estimate (10-year averages) |
| 9 | +13° | +19° | +26° | +21° | — | 2.5 m/sWSW | 51% | Climate-based estimate (10-year averages) |
| 10 | +13° | +19° | +26° | +21° | — | 3.3 m/sN | 39% | Climate-based estimate (10-year averages) |
| 11 | +13° | +18° | +25° | +20° | — | 5.9 m/sE | 48% | Climate-based estimate (10-year averages) |
| 12 | +10° | +16° | +23° | +18° | — | 5.2 m/sSW | 36% | Climate-based estimate (10-year averages) |
| 13 | +10° | +16° | +23° | +18° | — | 5 m/sENE | 52% | Climate-based estimate (10-year averages) |
| 14 | +13° | +18° | +24° | +19° | — | 5.8 m/sSE | 47% | Climate-based estimate (10-year averages) |
| 15 | +13° | +18° | +25° | +20° | — | 5.3 m/sW | 50% | Climate-based estimate (10-year averages) |
| 16 | +10° | +16° | +22° | +17° | — | 3.5 m/sS | 39% | Climate-based estimate (10-year averages) |
| 17 | +10° | +16° | +22° | +17° | — | 3.1 m/sNNE | 33% | Climate-based estimate (10-year averages) |
| 18 | +9° | +15° | +22° | +17° | — | 4.1 m/sNNE | 51% | Climate-based estimate (10-year averages) |
| 19 | +9° | +16° | +23° | +18° | — | 5.6 m/sWNW | 34% | Climate-based estimate (10-year averages) |
| 20 | +11° | +17° | +25° | +19° | — | 2.8 m/sNNE | 52% | Climate-based estimate (10-year averages) |
| 21 | +11° | +17° | +24° | +19° | — | 4.9 m/sNNW | 40% | Climate-based estimate (10-year averages) |
| 22 | +10° | +17° | +24° | +19° | — | 4.9 m/sNW | 46% | Climate-based estimate (10-year averages) |
| 23 | +11° | +17° | +25° | +19° | 4.5 mm | 7.3 m/sENE | 64% | Climate-based estimate (10-year averages) |
| 24 | +11° | +17° | +25° | +19° | — | 3.6 m/sNNW | 41% | Climate-based estimate (10-year averages) |
| 25 | +9° | +16° | +25° | +19° | — | 2.9 m/sW | 34% | Climate-based estimate (10-year averages) |
| 26 | +10° | +16° | +24° | +18° | — | 5.8 m/sESE | 38% | Climate-based estimate (10-year averages) |
| 27 | +11° | +17° | +25° | +19° | 12 mm | 7.1 m/sNW | 68% | Climate-based estimate (10-year averages) |
| 28 | +11° | +17° | +24° | +19° | — | 4.5 m/sWNW | 49% | Climate-based estimate (10-year averages) |
| 29 | +11° | +17° | +23° | +18° | — | 5.9 m/sSSW | 56% | Climate-based estimate (10-year averages) |
| 30 | +11° | +17° | +24° | +19° | — | 2.9 m/sN | 39% | Climate-based estimate (10-year averages) |
| 31 | +9° | +16° | +24° | +18° | — | 2.2 m/sNNW | 54% | Climate-based estimate (10-year averages) |
Weather by month
Warmest stretch
In December in Biratnagar warms up: the first days average +26°, the last days +24°. The swing is worth remembering when you pack — mornings and evenings sit several degrees below the afternoon.
Warmest day: 1 Dec · Coldest night: 31 Dec · Compared with the previous month: -4°
Wettest stretch
Rain in Biratnagar in December falls on about 2 days and totals roughly 17 mm, with the wettest stretch around 23 Dec. Most of the month stays dry, so outdoor plans rarely get cancelled outright.
Chance of rain: 6% · Sunny days: 19
Comfort
Comfort in December in Biratnagar scores 9 out of 10: daytime +24° against nights near +11°, humidity around 45% and a light breeze of 4.2 m/s. That is a pleasant window for walking and sightseeing.
Day length change
Daylight in Biratnagar in December runs from about 10 h 37 m at the start of the month to roughly 10 h 07 m by the end, which decides how much you can fit outside before the lights come on.
Wind in December in Biratnagar comes mostly from the NW direction (about 23% of readings) and stays light, so the felt temperature stays close to the numbers in the table.