Siraha in Winter
In winter (December, January and February), Siraha sees average daytime highs around 24°C and overnight lows near 12°C, with 27 mm of rain over about 4 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 26°C in early December to 29°C by late February. The sky is clear or mostly clear about 76% of the time across winter, and the air most often feels dry.
Winter is Siraha's best season of the year to visit on our travel score. For the whole year in context, see Siraha's year-round climate.
- Avg daytime high
- 24°C
- coldest season of the year
- Avg overnight low
- 12°C
- Rainfall
- 27 mm
- 4 wet days
- Avg wind
- 6 km/h
- Travel score
- 8.8
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Siraha in Winter
Over the season highs climb from about 26°C in early December to 29°C by late February.
A typical winter day in Siraha reaches about 24°C and drops to 12°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Siraha
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Siraha weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 23° / 10° | 12 | 1.6 | 10.5 | 8.7 |
| Feb | 26° / 13° | 11 | 1.6 | 11.1 | 8.4 |
| Mar | 32° / 18° | 11 | 2.4 | 11.8 | 5.0 |
| Apr | 36° / 23° | 26 | 5.3 | 12.6 | 2.5 |
| May | 36° / 25° | 85 | 11.7 | 13.3 | 2.2 |
| Jun | 34° / 26° | 229 | 20.8 | 13.6 | 2.3 |
| Jul | 32° / 26° | 393 | 26.4 | 13.5 | 2.5 |
| Aug | 32° / 26° | 258 | 26.1 | 12.9 | 2.5 |
| Sep | 31° / 25° | 220 | 21.3 | 12.2 | 3.2 |
| Oct | 31° / 21° | 50 | 5 | 11.4 | 5.5 |
| Nov | 28° / 16° | 2 | 0.3 | 10.7 | 7.9 |
| Dec | 24° / 12° | 4 | 0.6 | 10.4 | 9.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 76% of the time across winter.
Chance of precipitation in Winter
Siraha gets around 27 mm of rain over 4 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 6 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 24 min in early December to 11 h 24 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.1 kWh/m².
Hazard calendar for Siraha
None of Siraha's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Siraha's monsoon runs June–September, when most of the year's rain falls.
Is winter a good time to visit Siraha?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Siraha for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Siraha in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Siraha sees daytime highs around 24°C and nights near 12°C. Worth packing: light clothes and sun protection.
UV index in Siraha in Winter
Clear-sky midday UV across winter averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Siraha peaks around July 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 18 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 4 | 9 | 7 | 8 | 7 | 12 | 9 | 9 | 6 | 4 | 4 |
| Level | Moderate | Moderate | Very high | Very high | Very high | High | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 4 | Moderate |
| Mar | 9 | Very high |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 12 | Extreme |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 4 | Moderate |
Air quality in Siraha in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Siraha is worst in January — around 169 µg/m³ PM2.5 (very unhealthy), about 4.9× the cleanest month (July, 35 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 169 | 138 | 107 | 87 | 70 | 57 | 35 | 43 | 55 | 87 | 125 | 160 |
| Level | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy | Very unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 169 | Very unhealthy |
| Feb | 138 | Unhealthy |
| Mar | 107 | Unhealthy |
| Apr | 87 | Unhealthy |
| May | 70 | Unhealthy |
| Jun | 57 | Unhealthy |
| Jul | 35 | Moderate |
| Aug | 43 | Poor |
| Sep | 55 | Unhealthy |
| Oct | 87 | Unhealthy |
| Nov | 125 | Unhealthy |
| Dec | 160 | Very unhealthy |
Where is Siraha?
Siraha sits at 26.7°N, 86.2°E, 82 m above sea level, in Nepal. The nearest listed city is Lahān, 28 km away.
Topography around Siraha
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Siraha.
Within 3 km, the terrain around Siraha has only modest variations in elevation — a maximum elevation change of 15 m around an average of 75 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,775 m.
The land around Siraha is covered by cropland (67%) within 3 km, cropland (78%) within 16 km, and cropland (54%) and trees (38%) within 80 km.
Nepal travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / D / M
- 230 V · 50 Hz
- Prices
- ≈ 24% of US
- price level, 2025
- GDP per capita
- $1,536
- 2025
- Happiness
- 5.1 / 10
- World Happiness, 2025
- Safe drinking water
- 16%
- of population, 2024
- Homicide rate
- 2.1
- per 100k, 2020
- Road deaths
- 16.3
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 514
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Siraha (26.6542°, 86.2079°, elevation 82 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.