Algeria · 1991–2020

Best time to visit
Oued Sly

For Oued Sly, October has the most comfortable weather in our climate comparison. Typical daytime highs are 27.6°C, nights average 15.5°C, and rainfall totals about 31 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthOctober

Typical daytime high27.6°C

Typical night-time low15.5°C

October rainfall31 mm

Overall comfort

October

Other strong months: April and May

86/100 weather score

Beach weather

September

Other strong months: May and June

84/100 weather score

Outdoor sightseeing

March

Other strong months: November and April

87/100 weather score

Make the answer personal

Choose the weather
that suits you.

Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.

Daytime high: at least 18°CDaytime high: at most 30°CMonthly rain: no more than 100 mmWet days: no more than 10

5 months fit your choices for Oued Sly

March20.4°C day · 55 mm rain · 7.6 wet days

April23.4°C day · 52 mm rain · 7.1 wet days

May28.7°C day · 31 mm rain · 4.6 wet days

October27.6°C day · 31 mm rain · 4.4 wet days

November20.6°C day · 64 mm rain · 8.1 wet days

August has the lowest comfort score at 39 out of 100, compared with October at 86. The main reason is that days average 38.1°C, 14° above the 24°C the score treats as ideal.

Quick answers

Planning a trip to Oued Sly?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Oued Sly?

October is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 27.6°C and 31 mm of rain.

What is the hottest month in Oued Sly?

July is hottest in this record, with a typical daytime high of 38.1°C and a night-time low of 22.3°C.

Which month has the least rain?

July has the lowest monthly rainfall total at 2 mm.

Is this a weather forecast?

No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.

Month by month

See how the weather
changes through the year.

The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.

5116° / 6.2°

5317.3° / 6.7°

7020.4° / 8.5°

8423.4° / 10.4°

8228.7° / 14.4°

6033.9° / 18.8°

4038.1° / 22.3°

3938.1° / 22.9°

6332.8° / 19.5°

8627.6° / 15.5°

7220.6° / 10.8°

5917° / 7.6°

Monthly climate evidence for Oued Sly — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 42 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	16°C	6.2°C	54 mm	8.2	15.6°C	9 h 57	51	Good coverage
February	17.3°C	6.7°C	70 mm	8.9	15.2°C	10 h 49	53	Good coverage
March	20.4°C	8.5°C	55 mm	7.6	15.4°C	11 h 51	70	Good coverage
April	23.4°C	10.4°C	52 mm	7.1	16.4°C	13 h 03	84	Good coverage
May	28.7°C	14.4°C	31 mm	4.6	18.2°C	14 h 03	82	Good coverage
June	33.9°C	18.8°C	10 mm	1.5	20.7°C	14 h 36	60	Good coverage
July	38.1°C	22.3°C	2 mm	0.6	23.3°C	14 h 23	40	Good coverage
August	38.1°C	22.9°C	4 mm	0.9	24.8°C	13 h 32	39	Good coverage
September	32.8°C	19.5°C	13 mm	2.4	23.8°C	12 h 22	63	Good coverage
October	27.6°C	15.5°C	31 mm	4.4	21.4°C	11 h 12	86	Good coverage
November	20.6°C	10.8°C	64 mm	8.1	18.7°C	10 h 12	72	Good coverage
December	17°C	7.6°C	48 mm	6.4	16.7°C	9 h 43	59	Good coverage

Records at ECH CHELIFF, 1965–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C26 Jan 2024	-2.0°C24 Jan 1976	48 mm23 Jan 2017	176 mm2017 · driest 0 mm in 1983	47
February	32.0°C23 Feb 1986	-1.2°C27 Feb 1988	66 mm2 Feb 2011	144 mm2012 · driest 0 mm in 2020	47
March	35.7°C23 Mar 2001	-1.0°C31 Mar 1977	35 mm23 Mar 2016	131 mm2016 · driest 1 mm in 1997	48
April	41.5°C28 Apr 2023	0.0°C9 Apr 1978	74 mm14 Apr 2012	136 mm2012 · driest 0 mm in 2017	49
May	43.8°C31 May 1994	3.8°C5 May 1991	43 mm21 May 2011	107 mm2011 · driest 0 mm in 1983	49
June	45.3°C1 Jun 1994	8.0°C14 Jun 1978	43 mm3 Jun 2018	58 mm2018 · driest 0 mm in 1983	51
July	48.3°C10 Jul 2023	12.8°C6 Jul 1967	7 mm4 Jul 1983	14 mm2008 · driest 0 mm in 2010	50
August	48.0°C11 Aug 2021	11.0°C31 Aug 1973	33 mm18 Aug 2010	41 mm2010 · driest 0 mm in 1994	50
September	45.0°C16 Sep 1989	9.1°C17 Sep 1988	42 mm29 Sep 1994	48 mm1994 · driest 0 mm in 2003	51
October	40.0°C5 Oct 1981	4.0°C30 Oct 1974	45 mm20 Oct 2017	116 mm2000 · driest 0 mm in 1983	52
November	32.0°C4 Nov 2016	0.0°C19 Nov 1966	53 mm7 Nov 2021	196 mm2021 · driest 0 mm in 2006	52
December	26.0°C22 Dec 1996	-1.1°C17 Dec 1967	42 mm15 Dec 1988	105 mm2008 · driest 0 mm in 2015	50

Typical days per month at ECH CHELIFF, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	0	0	<1
February	<1	0	2
March	3	<1	2
April	9	2	1
May	19	11	<1
June	24	19	<1
July	25	25	0
August	25	24	<1
September	23	18	<1
October	18	8	<1
November	4	<1	2
December	<1	0	1

How often different weather occurs at ECH CHELIFF, based on its daily record
Month	Dry days reaching 20°C	Wet days	Days with heavy rain	Weeks with 3+ wet days	Typical high by year
January	11%	30%	5%	32%	14.6–17.9°C
February	20%	31%	8%	39%	14.6–19.8°C
March	46%	28%	6%	34%	17.8–23.5°C
April	65%	26%	5%	23%	20.6–25.8°C
May	79%	17%	2%	12%	25.5–30.7°C
June	92%	7%	1%	<1%	30.8–35.7°C
July	98%	2%	0%	<1%	35.7–39.9°C
August	97%	3%	<1%	1%	35.2–39.4°C
September	90%	10%	2%	5%	31.1–34.6°C
October	81%	17%	4%	10%	24.2–30.7°C
November	50%	31%	8%	38%	18.1–23.2°C
December	14%	25%	6%	26%	15.3–19.1°C

A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.

1966Each stripe is one year’s mean temperature against the 23-year average. Warmest: 2015. Coolest: 1974.2015

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 2485572
NOAA station: AGM00060425 · ECH CHELIFF
Station distance: 17.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 36.10°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 42 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

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Choose your month.
Then plan the details.

The weather comparison for Oued Sly is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

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