Guinea Climate – July 2026 Update
Top 5 Cities: Conakry, Nzérékoré, Kindia, Kankan, and Labé
Summary
Guinea recorded its 2nd warmest July on record, with average temperatures rising 1.4°C above the historical baseline. This exceptional heat capped a three-month stretch that also marked the country's 2nd warmest May to July period in 87 years of tracking. Sweltering conditions are expected to persist across West Africa over the next one to three months.
This month in numbers
Guinea recorded an average temperature of 25.34°C during July 2026, creating an anomaly of +1.4°C above the 1961–1990 baseline. That made it the 2nd warmest July since records began in 1940, falling just short of the all-time record of 25.41°C set in 2023. The seasonal picture was equally striking, with the May to July average reaching 26.7°C - an anomaly of +1.3°C - which also ranked as the 2nd warmest such three-month stretch on record, behind only the 27.03°C benchmark set in 2024. Globally, land temperatures for the month averaged 15.8°C (+1.6°C anomaly), marking the 3rd warmest July on record worldwide.
What changed
The sustained heat through May, June and July highlights a persistent warming trajectory across West Africa. Guinea's full-year average temperature reached 26.45°C in 2025, making it the 6th warmest year in 86 years of historical observations and contributing to a long-term warming trend of +1.02°C above the 1961–1990 baseline. The country's warmest year on record remains 2024 at 26.91°C, with the five hottest years all occurring since 2019, demonstrating how rapidly baseline temperatures are shifting.
What’s driving change?
Guinea's persistent elevated temperatures are driven primarily by , as warming atmospheric patterns alter the timing and intensity of West African rainfall, trapping heat across the interior. Because , West Africa's interior terrestrial regions experience more pronounced temperature anomalies than nearby tropical Atlantic waters. These thermodynamic mechanisms create sustained heat periods, while intense localized rainstorms periodically trigger flash flooding across coastal urban areas.
Looking ahead
Seasonal climate models suggest above-average temperatures will persist across West Africa over the next one to three months, alongside typical late-monsoon precipitation.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Climate Map – Global
Source: NOAA Climate at a Glance (countries & continents) · Met Office (UK) · US states & climate regions. Anomalies are vs the 1961–1990 baseline. See methodology.
Typical Climate – Guinea
Köppen Aw · TropicalGuinea has a tropical climate (Köppen Aw: Tropical savanna (dry winter)), with both a warm/cold cycle and a wet/dry cycle through the year. April is typically the warmest month, averaging 29.5°C, while August is the coldest at 24.5°C. Annual precipitation averages around 1625mm, concentrated mostly in the wet season.
Monthly climate normals (2016–2025) - bar colour and height show average temperature, the shaded area shows average monthly precipitation.
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Long-Term Trends
Combined Timeline – Guinea
Precipitation, Sunshine, Frost and Snow are converted to standard deviations from their own average so they can share an axis with Temperature.
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Heatwave Days – Guinea
Warm Spell Duration Index (WSDI) - days in a 6+ day run above the local 90th-percentile temperature for that time of year.
Data: World Bank Climate Change Knowledge Portal (ERA5-derived). Refreshed roughly 1-2x/year, ~7-8 months behind present.
Year-on-Year Trends
The 4byo Climate Helix – Guinea
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Monthly Temperature – Guinea
Latest month is provisional and may be revised by the data provider in the next update cycle.
Background lines show the last 40 years (plus the record year and its opposite, wherever they fall).
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Records – Guinea
Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP) - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm/cold + wet/dryKöppen Aw · TropicalGuinea has both a clear warm/cold cycle (±2.5°C) and a wet/dry cycle (56× wet:dry ratio). Both sides of the annual rhythm are shown below.
Monthly precipitation climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Sep (-123 mm, -28%).
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Guinea
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.
Country-level temperature anomaly, sourced from Copernicus ERA5 and Hadley HadCRUT5.
Annual country and global CO₂ emissions, from the Global Carbon Project.
Monthly rainfall - Global Precipitation Climatology Centre (DWD) preferred, World Bank CCKP/CRU TS fallback where GPCC lacks direct coverage.
Frost Days and Heatwave Days (Warm Spell Duration Index), ERA5-derived. World Bank Climate Change Knowledge Portal.
Monthly snow water-equivalent, Global Precipitation Climatology Centre (DWD).
FAQs
FAQs
How is the climate in Guinea changing?
Guinea is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.
What is the climate like in Guinea?
Guinea has a tropical climate (Köppen Aw: Tropical savanna (dry winter)), with both a warm/cold cycle and a wet/dry cycle through the year. April is typically the warmest month, averaging 29.5°C, while August is the coldest at 24.5°C. Annual precipitation averages around 1625mm, concentrated mostly in the wet season.
Where does the climate data for Guinea come from?
Climate data for Guinea comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Guinea climate data cover?
The Guinea climate profile covers Conakry, Nzérékoré, Kindia, Kankan and surrounding areas. Temperature, rainfall and emissions data for Guinea
How often is the Guinea climate update refreshed?
The Guinea climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.
What counts as a Heatwave Day on the Guinea climate page?
Heatwave Days use the Warm Spell Duration Index (WSDI) - the WMO/ETCCDI-standard heatwave measure: days that are part of a run of 6 or more consecutive days above the local 90th-percentile temperature for that calendar day. The 90th-percentile threshold varies by time of year (a hot day in January is judged differently to one in July) but is fixed to the 1961-1990 baseline for every year shown - it does not shift as the climate warms, which is why Heatwave Days trend upward over time.
Does the Guinea climate page include frost and snow data?
Yes. Frost Days (days with a minimum temperature below 0°C, World Bank CCKP) and snow water-equivalent (GPCC) are shown alongside temperature and precipitation, each measured against the 1961-1990 baseline where a like-for-like historical comparison is available.