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Banī Suwayf weather by month: averages, rainfall & climate trends

Banī Suwayf has well-marked seasons, with 17.1°C between its warmest and coolest monthly means. Rain is a rare event here. Banī Suwayf weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

−3.1°Chigh well below average

28° / 16°Today
31° / 18°Average
see today in detail →

How it's changed

+1.6°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49198days above 30°C a year now (2016–2025) · 187 in the 1940sdays above 30°C · 187 in the 1940s+1.6°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 3 mmhigh 20°low 8°February, rain 2 mmhigh 22°low 9°March, rain 2 mmhigh 25°low 12°April, rain 1 mmhigh 30°low 15°May, rain 0 mmhigh 34°low 19°June, rain 0 mmhigh 36°low 22°July, rain 0 mmhigh 37°low 23°August, rain 0 mmhigh 37°low 24°September, rain 0 mmhigh 35°low 22°October, rain 1 mmhigh 31°low 19°November, rain 2 mmhigh 26°low 14°December, rain 3 mmhigh 21°low 9°wettest month December, 3 mm · 15 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Partly cloudy

Right now

22.5°

22°feels like
52%humidity
12°dew point
6 km/hfrom NW
UV index0.0
sunrise07:00sunset18:19day length11h 19m
TodayMostly clear28°16°
ThuMostly clear30°18°
FriMostly clear30°19°
SatMostly clear29°19°
SunClear30°19°
MonOvercast30°18°
TueClear31°17°

On this date: October 21

Today (forecast)
28° / 16°
Average for October 21
31° / 18°

High well below average · −3.1°C

  • Highest since 1940: 39.3° · 1970
  • Lowest since 1940: 13.3° · 1945
  • One year ago: 34° / 19°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Banī Suwayf is sampled from the ECMWF ERA5 reanalysis at 29.07°N, 31.10°E, with daily records since 1940.

Coordinates
29.07°N, 31.10°E
Time zone
Africa/Cairo
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

9 of the last 31 days were warmer than the historical average for that date. Average difference: −0.5°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The warmest month is July, with typical afternoon highs of 36.8°C and nights around 23.4°C. In a typical recent year, around 200 days reach 30°C or more. At the other extreme, January brings afternoon highs of about 19.8°C and typical overnight lows of 7.5°C. Frost is essentially unknown.

The annual total in Banī Suwayf is just 15 mm or so, with December the most likely month to see any of it.

Over the full record (since 1940), the annual mean temperature in Banī Suwayf has risen by 1.6°C between its first decade and its last. Recent years have brought more rain as well. The last decade sits roughly 11% over the long-term average.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 17°C. Wettest month: December (~3 mm). Whole year averages ~15 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Banī Suwayf month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainDaylightHighestLowest
January19.8°7.5°3 mm10.3 h30.1° (1971)−1.5° (1942)
February21.6°8.8°2 mm11.0 h34.4° (1958)−2.2° (1950)
March25.1°11.5°2 mm11.8 h39.7° (1958)3.0° (1953)
April30.0°15.3°1 mm12.7 h43.5° (1958)6.4° (1956)
May34.0°19.3°0 mm13.5 h47.5° (1970)11.5° (1944)
June36.4°22.1°0 mm13.8 h47.2° (1961)16.1° (1944)
July36.8°23.4°0 mm13.7 h45.2° (2002)18.9° (1956)
August36.6°23.8°0 mm13.0 h44.6° (1968)18.6° (1949)
September34.6°22.0°0 mm12.2 h44.2° (1978)15.1° (1949)
October31.3°18.8°1 mm11.3 h44.1° (1943)12.0° (1951)
November26.1°13.9°2 mm10.5 h37.6° (1941)2.8° (1953)
December21.3°9.3°3 mm10.2 h32.3° (1956)1.2° (1940)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.6°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.18°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Sep–Nov is warming fastest: +0.24°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 187.2 early in the record → 197.9 recently. Frost days: 0 → 0.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 1970, coldest in 1950: 47.5°C / −2.2°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~15 mm/year on average. Last decade: +11% vs that average. Long-term trend: 0 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Banī Suwayf

Which is the warmest month in Banī Suwayf?
On long-term average, the warmest month in Banī Suwayf is July (mean daily temperature of about 30.3°C) and the coolest is January (about 13.2°C).
How does today's temperature in Banī Suwayf compare to the historical average?
On October 21, 2026, Banī Suwayf is forecast to reach a high of 27.6°C and a low of 15.5°C. The long-term average for this date (the full record since 1940) is a high of 30.7°C and a low of 18.0°C, so today's high is 3.1°C cooler than that average.
How much has Banī Suwayf warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Banī Suwayf is about 1.6°C warmer.
How much does it rain in Banī Suwayf?
Banī Suwayf receives about 15 mm of precipitation per year on long-term average, with December typically the wettest month.
What is the average temperature in Banī Suwayf?
Over the full record (since 1940), the annual mean temperature in Banī Suwayf is about 22.8°C. The warmest month is July and the coolest is January.
What are the average temperatures in Banī Suwayf by month?
Average daily highs and lows for each month in Banī Suwayf (°C, full record since 1940): January 20°/8°, February 22°/9°, March 25°/12°, April 30°/15°, May 34°/19°, June 36°/22°, July 37°/23°, August 37°/24°, September 35°/22°, October 31°/19°, November 26°/14°, December 21°/9°.
What is the weather like in Banī Suwayf in summer?
Summer in Banī Suwayf (June to August) is dry and really hot. Afternoons run 36–37°C and nights 22–24°C; July is the warmest month. Almost no rain.
What is the weather like in Banī Suwayf in winter?
Winter in Banī Suwayf (December to February) is dry and mild. Expect 20–22°C by day and 8–9°C at night, with January the coldest month. Hardly any rain falls.
What is the weather like in Banī Suwayf in spring?
Spring in Banī Suwayf (March to May) is dry and warm. It warms from 25°C by day and 12°C at night in March to 34°C and 19°C in May. Almost no rain.
What is the weather like in Banī Suwayf in autumn?
September to November is autumn in Banī Suwayf, and it is dry and hot. September is still 35°C by day and 22°C at night; by November it is down to 26°C and 14°C. Hardly any rain falls.

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