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Shahriar weather

Tehran · 309,607 inhabitants · Thursday, October 29 · updated 20:30

Air: Very poor

20°

Mainly clear

Feels like 20°C

Wind

9 km/h

Gusts

21 km/h

Humidity

28 %

Pressure

1017 hPa

Clouds

49 %

Storm

Rise 06:24 Set 17:14 Day 10 h 49 min UV 3 · Moderate

Morning, afternoon, evening

Trend

Evening

Drizzle

18°15°

Feels like 18°

Wind ↑ N 4 km/h

Gusts 10 km/h

Humidity 37 %

💧 0.7 mm

21:00

15°

0.7mm

N 4

00:00

14°

0.1mm

N 5

Shahriar forecast in charts · next 7 days

The week ahead: highs and lows

▲ This week runs +4.9° warmer than usual

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Shahriar climate: what a normal year looks like

The hottest stretch is July, when afternoons average 36 °C; the coldest is January, when nights average −3 °C. Between those two months the average temperature changes by 28 °C.

A normal year brings roughly 310 mm of rain — less than 94% of the towns of 20,000+ people we compared it with.

Nights typically freeze from December to February, the coldest averaging −3 °C in January.

From June to September, rain is scarce: under 10 mm a month on average.

Forecast highs for the coming week average 21 °C, 2 °C cooler than a normal October (23 °C).

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall
Jan	6 °C	−3 °C	40 mm
Feb	8 °C	−1 °C	43 mm
Mar	13 °C	3 °C	54 mm
Apr	20 °C	9 °C	47 mm
May	26 °C	15 °C	18 mm
Jun	33 °C	20 °C	4 mm
Jul	36 °C	23 °C	2 mm
Aug	35 °C	22 °C	2 mm
Sep	31 °C	17 °C	2 mm
Oct	23 °C	12 °C	17 mm
Nov	14 °C	4 °C	40 mm
Dec	8 °C	−1 °C	41 mm
Whole year	21 °C	10 °C	310 mm

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 35.66° N, 51.06° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Shahriar: pollution and pollen

5/6

Very poor

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.558µg/m³

PM1059µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Shahriar

Rain observed over the last two hours by official weather radars around Shahriar, followed by the radar forecast for the next hour where the weather service provides one.

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Shahriar yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Shahriar

Waning gibbous

87 % illuminated · 18.3 days

Rise 00:21 Set 16:10

Fri 30/10 79%

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Moonrise and moonset in local time (Asia/Tehran); phase and lit fraction from a synodic calculation.

Look up a past day in Shahriar

Curious about the weather in Shahriar on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Shahriar weather at a glance

This page gathers everything about the weather in Shahriar, Tehran: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 20 °C (feels like 20 °C) and the wind blows at 9 km/h.

Expected range today: 14 °C to 20 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.

Other big cities nearby

Shahriar weather data for developers

Use the Shahriar forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

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Where does this forecast come from? Our engine, checked every day against 1125 weather stations