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Tripoli weather by month: averages, rainfall & climate trends

Average temperatures in Tripoli follow a clear seasonal rhythm, rising and falling by 12.3°C over the course of the year. This is a dry climate by most measures, though not a rainless one. Tripoli weather by month: average temperatures, rainfall, records and how the climate has changed since 1940.

Today vs average

+3.1°Chigh well above average

28° / 21°Today
25° / 22°Average
see today in detail →

How it's changed

+1.4°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–4915days above 30°C a year now (2016–2025) · 4 in the 1940sdays above 30°C · 4 in the 1940s+1.4°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 86 mmhigh 16°low 13°February, rain 47 mmhigh 16°low 13°March, rain 28 mmhigh 17°low 14°April, rain 13 mmhigh 19°low 16°May, rain 4 mmhigh 21°low 18°June, rain 1 mmhigh 24°low 21°July, rain 0 mmhigh 26°low 24°August, rain 1 mmhigh 28°low 25°September, rain 13 mmhigh 27°low 24°October, rain 43 mmhigh 24°low 22°November, rain 64 mmhigh 21°low 18°December, rain 98 mmhigh 17°low 14°wettest month December, 98 mm · 400 mm a yearsee month by month →

Right now

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

Right now

26.5°

28°feels like
49%humidity
15°dew point
3 km/hfrom SE
UV index4.7
sunrise07:09sunset18:38day length11h 29m
TodayOvercast28°21°
TuePartly cloudy26°23°
WedMostly clear26°22°
ThuClear26°20°
FriOvercast25°18°
SatPartly cloudy26°18°
SunMostly clear29°20°

On this date: October 12

Today (forecast)
28° / 21°
Average for October 12
25° / 22°

High well above average · +3.1°C

  • Record high: 30.6° · 2010
  • Record low: 18.8° · 1954
  • One year ago: 24° / 23°

Every October 12 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 12 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 Tripoli is sampled from the ECMWF ERA5 reanalysis at 32.89°N, 13.19°E, with daily records since 1940.

Coordinates
32.89°N, 13.19°E
Time zone
Africa/Tripoli
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

21 of the last 31 days were warmer than the historical average for that date. Average difference: +1.0°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 year peaks in August, at around 27.7°C by mid-afternoon, with nights around 25.3°C. In a typical recent year, around 15 days reach 30°C or more. At the other extreme, January brings afternoon highs of about 15.5°C and typical overnight lows of 12.8°C. Freezing temperatures almost never occur.

Tripoli picks up roughly 400 mm a year, peaking at 98 mm in December; July is essentially rainless.

Comparing the record's first decade with its most recent one, Tripoli now averages 1.4°C warmer than it did in the 1940s. Recent years have brought less rain as well. The last decade sits roughly 23% under the long-term average.

Climate graph (climograph)

August is the warmest month, January the coolest: a yearly swing of 12°C. Wettest month: December (~98 mm). Whole year averages ~400 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).

Rainy days by month

About 38 rainy days a year: most in December (~9), fewest in July (almost none).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

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.

Tripoli 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. Record high/low are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightRecord highRecord low
January15.5°12.8°86 mm810.1 h26.2° (2021)6.2° (1981)
February15.8°13.0°47 mm510.8 h25.2° (2004)6.9° (1979)
March16.9°14.0°28 mm311.8 h27.9° (1952)8.4° (1944)
April18.7°15.7°13 mm212.8 h29.9° (2006)10.3° (1940)
May21.1°18.3°4 mm013.7 h34.8° (1999)13.4° (1975)
June24.0°21.5°1 mm014.2 h37.0° (1966)16.6° (2019)
July26.4°24.0°0 mm014.0 h36.5° (2023)20.0° (1974)
August27.7°25.3°1 mm013.2 h37.9° (1941)22.0° (1948)
September26.9°24.4°13 mm112.2 h34.6° (1959)18.2° (1977)
October24.4°21.7°43 mm411.2 h35.0° (2020)14.9° (1986)
November20.7°17.9°64 mm610.3 h31.7° (2003)10.8° (1956)
December17.1°14.4°98 mm99.8 h25.8° (2010)7.5° (2014)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.4°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: +0.22°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: 4.2 early in the record → 15.0 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

All-time high in 1941, all-time low in 1981: 37.9°C / 6.2°C.

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

Annual rainfall

~400 mm/year on average. Last decade: −23% vs that average. Long-term trend: −19 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 Tripoli

Which is the warmest month in Tripoli?
On long-term average, the warmest month in Tripoli is August (mean daily temperature of about 26.5°C) and the coolest is January (about 14.2°C).
How does today's temperature in Tripoli compare to the historical average?
On October 12, 2026, Tripoli is forecast to reach a high of 28.0°C and a low of 20.6°C. The long-term average for this date (the full record since 1940) is a high of 24.9°C and a low of 22.2°C, so today's high is 3.1°C warmer than that average.
How much has Tripoli warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Tripoli is about 1.4°C warmer.
How much does it rain in Tripoli?
Tripoli receives about 400 mm of precipitation per year on long-term average, with December typically the wettest month.
What is the average temperature in Tripoli?
Over the full record (since 1940), the annual mean temperature in Tripoli is about 19.9°C. The warmest month is August and the coolest is January.
What are the average temperatures in Tripoli by month?
Average daily highs and lows for each month in Tripoli (°C, full record since 1940): January 16°/13°, February 16°/13°, March 17°/14°, April 19°/16°, May 21°/18°, June 24°/21°, July 26°/24°, August 28°/25°, September 27°/24°, October 24°/22°, November 21°/18°, December 17°/14°.
What is the weather like in Tripoli in summer?
In summer, June through August, Tripoli is dry and warm. It warms from 24°C by day and 21°C at night in June to 28°C and 25°C in August. Hardly any rain falls.
What is the weather like in Tripoli in winter?
In winter, December through February, Tripoli is fairly mild. Afternoons run 16–17°C and nights 13–14°C; January is the coldest month. Rain eases through the season: 9 rainy days and 98 mm in December, 5 days and 47 mm in February. No season is wetter.
What is the weather like in Tripoli in spring?
March to May is spring in Tripoli, and it is dry and mild. It warms from 17°C by day and 14°C at night in March to 21°C and 18°C in May. Rain eases through the season, 28 mm in March to 4 mm in May.
What is the weather like in Tripoli in autumn?
Autumn in Tripoli (September to November) is pleasantly warm. It cools from 27°C by day and 24°C at night in September to 21°C and 18°C in November. Rain picks up through the season: 1 rainy day and 13 mm in September, 6 days and 64 mm in November.
How many days a year does it rain in Tripoli?
On long-term average, Tripoli has about 38 days a year with at least 2 mm of rain or snow. The annual total is roughly 400 mm.

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