Grombalia weather in January

In January, Grombalia sees average daytime highs of 15°C and overnight lows near 9°C, with 39 mm of rain across 6.7 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 37% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Grombalia's 12th-clearest and 3rd-windiest month. For the whole year in context, see Grombalia's year-round climate.

Daytime high
15°
12th warmest
Overnight low
2nd coldest
Rainfall
39 mm
6.7 wet days
Daylight
9 h 48 min
7:35 AM – 5:20 PM
Cloud cover
49%
12th clearest
Wind
13 km/h
3rd windiest
Solar energy
2.65 kWh/m²
Travel score
5.2
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 15°C through the month.

A typical January day in Grombalia reaches about 15°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 18°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1169
2169
3169
4169
5169
6169
7169
8159
9159
10159
11159
12159
13159
14159
15159
16159
17159
18159
19159
20159
21159
22159
23159
24159
25159
26159
27159
28159
29159
30159
31159

How January really feels in Grombalia

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.

Grombalia weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 396.79.85.2
Feb16° / 387.410.65.2
Mar18° / 10°427.111.76.3
Apr20° / 13°38712.97.0
May24° / 16°203.813.98.2
Jun28° / 19°101.814.57.7
Jul31° / 22°20.214.26.2
Aug31° / 23°81.713.45.7
Sep28° / 21°425.412.26.8
Oct25° / 18°506.911.17.5
Nov20° / 14°426.4107.0
Dec17° / 10°396.89.55.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 28% of January, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46733
56832
66832
76832
86832
96733
106733
116733
126634
136634
146634
156535
166436
176436
186436
196436
206337
216337
226337
236337
246337
256337
266337
276337
286337
296337
306436
316436

Chance of precipitation in January

Any precipitation

Grombalia gets around 39 mm of rain over 6.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
117
217
316
416
516
616
716
817
917
1018
1119
1219
1320
1421
1522
1623
1724
1825
1925
2026
2126
2227
2327
2427
2527
2628
2728
2828
2928
3028
3128

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 30 min at the start of January to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:35 AM to 7:28 AM, and sunset from 5:07 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:355:07
29.57:355:08
39.67:355:09
49.67:355:10
59.67:365:10
69.67:365:11
79.67:365:12
89.67:365:13
99.67:365:14
109.67:365:14
119.77:355:15
129.77:355:16
139.77:355:17
149.77:355:18
159.77:355:19
169.87:355:20
179.87:345:21
189.87:345:22
199.87:345:23
209.87:335:24
219.97:335:25
229.97:335:26
239.97:325:27
249.97:325:28
2510.07:315:29
2610.07:315:30
2710.07:305:31
2810.07:295:32
2910.17:295:33
3010.17:285:34
3110.17:285:35

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.65 kWh/m².

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 7.6 kWh/m² in July across the year — January's 2.65 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.9Moderate
272.9Moderate
282.9Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Grombalia

In seasonPeak

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

Grombalia sees seasonal dust haze (June), heaviest in June.

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

Is January a good time to visit Grombalia?

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

5.2
Sightseeing
11th-best month of the year
0.2
Beach & pool
12th-best month of the year

January is a reasonable time to visit Grombalia for sightseeing.

What to pack for Grombalia in January

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

In January, Grombalia sees daytime highs around 15°C and nights near 9°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Grombalia in January

The nearest coast averages about 16°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 27 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 30 to Nov 25 — about 5.9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec18Cool

UV index in Grombalia in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Grombalia peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highVery highHighModerateJul 16UV 10Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr4Moderate
May7High
Jun9Very high
Jul10Extreme
Aug8Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Grombalia 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 Grombalia is worst in February — around 38 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (August, 24 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorFeb 1638 µg/m³Aug 1024 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb38Poor
Mar36Poor
Apr33Moderate
May29Moderate
Jun25Moderate
Jul24Moderate
Aug24Moderate
Sep27Moderate
Oct31Moderate
Nov34Moderate
Dec37Poor
Location & terrain

Where is Grombalia?

Grombalia sits at 36.6°N, 10.5°E, 50 m above sea level, in Tunisia. The nearest listed city is Beni Khalled, 10 km away.

Topography around Grombalia

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

Within 3 km, the terrain around Grombalia has only modest variations in elevation — a maximum elevation change of 72 m around an average of 48 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 754 m; within 80 km, large variations in elevation — a maximum elevation change of 1,190 m.

The land around Grombalia is covered by grassland (36%) and cropland (33%) within 3 km, grassland (41%) and trees (28%) within 16 km, and water (42%), cropland (26%) and grassland (20%) within 80 km.

3 km
72 m
16 km
754 m
80 km
1,190 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Beni Khalled 10 km · Soliman 11 km · Mennzel Bou Zelfa 12 km · Borj Cedria 15 km · Hammam-Lif 20 km · La Sebala du Mornag 21 km · Takelsa 24 km · Ez Zahra 24 km

Tunisia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$4,657
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
65%
of population, 2024
Homicide rate
4.7
per 100k, 2020
Road deaths
16.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 498
Religion
Muslim 99%

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 Grombalia (36.5989°, 10.5003°, elevation 50 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).