Collo in Winter
In winter (December, January and February), Collo sees average daytime highs around 15°C and overnight lows near 10°C, with 313 mm of rain over about 38 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 15°C. The sky is clear or mostly clear about 32% of the time across winter, and the air most often feels dry.
Winter is Collo's weakest season of the year to visit on our travel score. For the whole year in context, see Collo's year-round climate.
- Avg daytime high
- 15°C
- coldest season of the year
- Avg overnight low
- 10°C
- Rainfall
- 313 mm
- 38 wet days
- Avg wind
- 12 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Collo in Winter
Across winter, daytime highs hold fairly steady around 15°C.
A typical winter day in Collo reaches about 15°C and drops to 10°C overnight. The warmest of the three months is December, the coolest February.
How winter really feels in Collo
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.
Collo 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 | 15° / 9° | 105 | 12.8 | 9.7 | 4.2 |
| Feb | 15° / 9° | 94 | 12.3 | 10.6 | 4.1 |
| Mar | 16° / 11° | 80 | 10.9 | 11.7 | 5.3 |
| Apr | 18° / 13° | 70 | 9.5 | 12.9 | 6.2 |
| May | 22° / 16° | 47 | 6.8 | 14 | 7.4 |
| Jun | 26° / 20° | 13 | 2.5 | 14.5 | 8.5 |
| Jul | 29° / 23° | 3 | 0.6 | 14.3 | 7.5 |
| Aug | 30° / 23° | 10 | 2.1 | 13.4 | 6.7 |
| Sep | 27° / 21° | 51 | 7.7 | 12.3 | 7.1 |
| Oct | 24° / 18° | 78 | 9.5 | 11 | 7.1 |
| Nov | 19° / 14° | 112 | 13.5 | 10 | 5.7 |
| Dec | 16° / 11° | 114 | 12.8 | 9.5 | 4.7 |
Cloud cover in Winter
The sky is clear or mostly clear about 32% of the time across winter.
Chance of precipitation in Winter
Collo gets around 313 mm of rain over 38 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 9 h 36 min in early December to 11 h 06 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 2.7 kWh/m².
Hazard calendar for Collo
In winter, Collo overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Collo's rainy season runs October–April, when most of the year's rain falls.
Collo sees seasonal dust haze (June–July), heaviest in June.
Is winter a good time to visit Collo?
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 reasonable time to visit Collo for sightseeing.
What to pack for Collo in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Collo sees daytime highs around 15°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 38 days see rain.
Sea temperature near Collo in Winter
The nearest coast averages about 16°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in August at about 26°C and coldest in February near 15°C.
It's comfortable for a long swim from Jun 2 to Nov 13 — about 5.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 15 | 16 | 18 | 22 | 24 | 26 | 25 | 23 | 20 | 17 |
| Comfort | Cool | Bracing | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Cool |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 20 | Cool |
| Dec | 17 | Cool |
UV index in Collo in Winter
Clear-sky midday UV across winter averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Collo peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 5 | 7 | 6 | 8 | 9 | 7 | 7 | 5 | 3 | 2 |
| Level | Moderate | Moderate | High | High | High | Very high | Very high | High | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Collo 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 Collo is worst in August — around 41 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (May, 24 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) | 25 | 26 | 29 | 28 | 24 | 24 | 33 | 41 | 26 | 26 | 25 | 26 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 25 | Moderate |
| Feb | 26 | Moderate |
| Mar | 29 | Moderate |
| Apr | 28 | Moderate |
| May | 24 | Moderate |
| Jun | 24 | Moderate |
| Jul | 33 | Moderate |
| Aug | 41 | Poor |
| Sep | 26 | Moderate |
| Oct | 26 | Moderate |
| Nov | 25 | Moderate |
| Dec | 26 | Moderate |
Where is Collo?
Collo sits at 37.0°N, 6.6°E, 33 m above sea level, in Algeria. The nearest listed city is Kerkera, 9.0 km away.
Topography around Collo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Collo.
Within 3 km, the terrain around Collo has significant variations in elevation — a maximum elevation change of 511 m around an average of 89 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,166 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,514 m.
The land around Collo is covered by water (40%) and trees (34%) within 3 km, water (46%) and trees (43%) within 16 km, and water (41%) and trees (24%) within 80 km.
Algeria travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $6,051
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Safe drinking water
- 69%
- of population, 2024
- Homicide rate
- 1.2
- per 100k, 2023
- Road deaths
- 20.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 468
- 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 Collo (37.0056°, 6.5605°, elevation 33 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.