Nā’īn in Winter
In winter (December, January and February), Nā’īn sees average daytime highs around 10°C and overnight lows near 0°C, with 55 mm of precipitation over about 13 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.
Across winter, daytime highs hold fairly steady around 10°C. The sky is clear or mostly clear about 61% of the time across winter, and the air most often feels dry.
Winter is Nā’īn's weakest season of the year to visit on our travel score. For the whole year in context, see Nā’īn's year-round climate.
- Avg daytime high
- 10°C
- coldest season of the year
- Avg overnight low
- 0°C
- Precipitation
- 55 mm
- 13 wet days
- Avg wind
- 12 km/h
- Travel score
- 2.7
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Nā’īn in Winter
Across winter, daytime highs hold fairly steady around 10°C.
A typical winter day in Nā’īn reaches about 10°C and drops to 0°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Nā’īn
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 90 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Nā’īn 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / -1° | 21 | 4.8 | 2.9 | 10.1 | 1.8 |
| Feb | 11° / 1° | 18 | 4.4 | 1.6 | 10.8 | 3.4 |
| Mar | 16° / 6° | 27 | 5.5 | 0.8 | 11.8 | 5.9 |
| Apr | 22° / 11° | 25 | 6.1 | 0.1 | 12.8 | 7.4 |
| May | 27° / 16° | 16 | 4.3 | 0 | 13.7 | 7.3 |
| Jun | 33° / 21° | 1 | 0.3 | 0 | 14.1 | 5.0 |
| Jul | 34° / 23° | 0 | 0.1 | 0 | 13.9 | 3.8 |
| Aug | 33° / 21° | 0 | 0.1 | 0 | 13.2 | 4.7 |
| Sep | 30° / 17° | 0 | 0 | 0 | 12.2 | 7.1 |
| Oct | 23° / 11° | 5 | 1.7 | 0 | 11.2 | 8.8 |
| Nov | 15° / 5° | 16 | 3.6 | 0.5 | 10.3 | 5.7 |
| Dec | 10° / 1° | 16 | 3.8 | 1.5 | 9.9 | 3.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 61% of the time across winter.
Chance of precipitation in Winter
Nā’īn gets around 55 mm of rain and snow over 13 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 12 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 hours in early December to 11 h 12 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 3.9 kWh/m².
Hazard calendar for Nā’īn
None of Nā’īn's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Nā’īn sees seasonal dust haze (July), heaviest in July.
Is winter a good time to visit Nā’īn?
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 a weaker month for outdoor sightseeing in Nā’īn.
What to pack for Nā’īn in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Nā’īn sees daytime highs around 10°C and nights near 0°C. Pack a warm layer. Worth having: sun protection. About 13 days see rain.
UV index in Nā’īn 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 Nā’īn peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 3 (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) | 3 | 6 | 6 | 8 | 10 | 10 | 11 | 10 | 8 | 7 | 4 | 4 |
| Level | Moderate | High | High | Very high | Very high | Very high | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 6 | High |
| Mar | 6 | High |
| Apr | 8 | Very high |
| May | 10 | Very high |
| Jun | 10 | Very high |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 7 | High |
| Nov | 4 | Moderate |
| Dec | 4 | Moderate |
Air quality in Nā’īn 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 Nā’īn is worst in July — around 31 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 13 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) | 16 | 19 | 23 | 30 | 30 | 24 | 31 | 21 | 23 | 18 | 13 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 19 | Moderate |
| Mar | 23 | Moderate |
| Apr | 30 | Moderate |
| May | 30 | Moderate |
| Jun | 24 | Moderate |
| Jul | 31 | Moderate |
| Aug | 21 | Moderate |
| Sep | 23 | Moderate |
| Oct | 18 | Moderate |
| Nov | 13 | Moderate |
| Dec | 13 | Moderate |
Where is Nā’īn?
Nā’īn sits at 32.9°N, 53.1°E, 1,564 m above sea level, in Iran. The nearest listed city is Ardestān, 88 km away.
Topography around Nā’īn
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nā’īn.
Within 3 km, the terrain around Nā’īn has only modest variations in elevation — a maximum elevation change of 92 m around an average of 1,562 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 656 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,344 m.
The land around Nā’īn is covered by bare terrain (69%) and artificial surfaces (22%) within 3 km, bare terrain (98%) within 16 km, and bare terrain (99%) within 80 km.
Iran travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 352% of US
- price level, 2025
- GDP per capita
- $3,924
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Safe drinking water
- 94%
- of population, 2024
- Homicide rate
- 2.4
- per 100k, 2014
- Road deaths
- 21.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 492
- 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 Nā’īn (32.8601°, 53.0875°, elevation 1,564 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.