Jam weather in January

In January, Jam sees average daytime highs of 19°C and overnight lows near 14°C, with 66 mm of rain across 5.6 wet days and about 10.4 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 64% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of January to 10 h 42 min by month's end. Set against the rest of the year, January is Jam's 12th-clearest and 5th-windiest month. For the whole year in context, see Jam's year-round climate.

Daytime high
19°
12th warmest
Overnight low
14°
1st coldest
Rainfall
66 mm
5.6 wet days
Daylight
10 h 24 min
6:58 AM – 5:22 PM
Cloud cover
34%
12th clearest
Wind
12 km/h
5th windiest
Solar energy
3.82 kWh/m²
Travel score
7.2
out of 10

Jam is city in Bushehr Province, Iran.

Founded
1996

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical January day in Jam reaches about 19°C in the afternoon and slips back to 14°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12015
22015
32015
41915
51915
61915
71914
81914
91914
101914
111914
121914
131914
141814
151814
161814
171814
181814
191814
201814
211814
221814
231814
241814
251814
261814
271814
281814
291914
301914
311914

How January really feels in Jam

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Jam weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 14°665.610.47.2
Feb20° / 15°343.5117.7
Mar22° / 18°263.311.88.3
Apr27° / 22°50.812.68.3
May31° / 27°00.113.45.8
Jun34° / 30°0013.74.3
Jul35° / 31°0013.63.7
Aug35° / 31°10.1133.7
Sep33° / 29°0012.24.7
Oct31° / 26°10.111.36.5
Nov26° / 21°232.210.68.5
Dec21° / 16°534.510.37.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 24%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27624
37525
47426
57426
67327
77327
87228
97327
107327
117327
127327
137327
147426
157426
167525
177525
187624
197624
207723
217723
227822
237723
247822
257822
267822
277822
287822
297822
307921
317921

Chance of precipitation in January

Any precipitation

Jam gets around 66 mm of rain over 5.6 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 18% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
215
315
416
517
618
718
819
919
1020
1120
1220
1320
1420
1521
1620
1720
1820
1919
2019
2118
2218
2318
2417
2517
2616
2716
2816
2915
3015
3114

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
174242
275232
374233
475223
575223
676213
777203
878193
979183
1081163
1182153
1283143
1384133
1485123
1586113
1688102
1788102
188992
198992
208992
219091
229091
2389101
2489101
2588111
2688111
2787121
2887121
2986131
3085141
3184151

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 18 min at the start of January to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 6:56 AM to 6:54 AM, and sunset from 5:12 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.36:565:12
210.36:565:12
310.36:565:13
410.36:575:14
510.36:575:14
610.36:575:15
710.36:575:16
810.36:575:17
910.36:575:17
1010.36:575:18
1110.46:585:19
1210.46:585:19
1310.46:585:20
1410.46:585:21
1510.46:585:22
1610.46:585:22
1710.46:575:23
1810.46:575:24
1910.56:575:25
2010.56:575:26
2110.56:575:26
2210.56:575:27
2310.56:565:28
2410.56:565:29
2510.66:565:30
2610.66:565:30
2710.66:555:31
2810.66:555:32
2910.66:555:33
3010.76:545:33
3110.76:545:34

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.82 kWh/m².

For context, solar energy here swings from a low near 3.67 kWh/m² to a high of 7.68 kWh/m² in June across the year — January's 3.82 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.7Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.9Moderate
203.9Moderate
213.9Moderate
224.0Moderate
234.0Bright
244.0Bright
254.1Bright
264.1Bright
274.1Bright
284.2Bright
294.2Bright
304.3Bright
314.3Bright
Planning a trip in January

Hazard calendar for Jam

In seasonPeak

None of Jam's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Jam sees seasonal dust haze (March–May), heaviest in April.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Jam?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.2
Sightseeing
6th-best month of the year
2.9
Beach & pool
12th-best month of the year

January is one of the better times to visit Jam for general sightseeing.

What to pack for Jam in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Jam sees daytime highs around 19°C and nights near 14°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Jam in January

The nearest coast averages about 23°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in August at about 34°C and coldest in February near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb22Refreshing
Mar22Refreshing
Apr24Refreshing
May27Warm
Jun30Tropical
Jul32Tropical
Aug34Tropical
Sep33Tropical
Oct31Tropical
Nov28Tropical
Dec25Warm

UV index in Jam in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks 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 Jam peaks around June 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highHighVery highExtremeVery highHighModerateJun 18UV 11Dec 23UV 4
UV index (midday)Level
Jan4Moderate
Feb7Very high
Mar8Very high
Apr6High
May9Very high
Jun11Extreme
Jul10Extreme
Aug10Very high
Sep7High
Oct7Very high
Nov5High
Dec4Moderate

Air quality in Jam in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Jam is worst in July — around 56 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (November, 26 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1854 µg/m³Nov 2326 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb32Moderate
Mar37Poor
Apr41Poor
May45Poor
Jun42Poor
Jul56Unhealthy
Aug46Poor
Sep39Poor
Oct34Moderate
Nov26Moderate
Dec27Moderate
Location & terrain

Where is Jam?

Jam sits at 27.8°N, 52.3°E, 622 m above sea level, in Iran. The nearest listed city is Makū, 10 km away.

Khonj

Topography around Jam

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jam.

Within 3 km, the terrain around Jam has only modest variations in elevation — a maximum elevation change of 166 m around an average of 652 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,518 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,093 m.

The land around Jam is covered by bare terrain (44%) and artificial surfaces (32%) within 3 km, bare terrain (79%) within 16 km, and bare terrain (64%) and water (25%) within 80 km.

3 km
166 m
16 km
1,518 m
80 km
2,093 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Makū 10 km · Bandar-e Kangān 26 km · Bandar-e Deyr 38 km · Nakhl-e Taqī 45 km · Pārsiān 98 km · Qīr 101 km · Lamerd 101 km · Khonj 109 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
Muslim 99%Christian 1%Baha'i 0%agnostic 0%

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 Jam (27.8298°, 52.3252°, elevation 622 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).