Tanzania Climate – June 2026 Update
Top 5 Cities: Dar es Salaam, Dodoma, Mwanza, Arusha, and Zanzibar City
This month in numbers
Tanzania experienced its 8th warmest June on record, with an average temperature of 21.73°C, marking an anomaly of +1°C compared to the 1961–1990 baseline. The April–June 2026 period also ranked as the 8th warmest on record, with an average of 22.41°C, an anomaly of +1.1°C. Globally, June 2026 was the 3rd warmest on record for land temperatures, while the April–June period was the 2nd warmest.
What changed
Tanzania's recent warmth aligns with a broader trend, as the country's long-term temperature trend shows an increase of +1.10°C against the 1961–1990 baseline. The latest full year, 2025, was the 4th warmest on record for Tanzania. This past month, Tanzania's average temperature was 0.57°C cooler than the overall African continent's average anomaly for June.
What’s driving change?
The current weak El Niño conditions, with a Niño 3.4 SST anomaly of +0.98°C for April-June 2026, are a significant factor influencing regional weather patterns. El Niño events are typically associated with increased rainfall and flooding risk in East Africa, particularly during the October-December "short rains" season. The Tanzania Meteorological Authority (TMA) has also noted that warmer-than-normal temperatures in the western Indian Ocean are expected to increase moisture flow into the country. Additionally, there has been a notable cluster of wildfire activity in Tanzania, with four events recorded in late June and early July, representing 100% of the annual total for the past 12 months. You can track active extreme weather events at Extreme Weather tracker and the evolving ENSO situation at ENSO.
Looking ahead
Strong El Niño conditions are expected to develop rapidly from July to September and persist through the end of the year, suggesting a high probability of above-normal rainfall and an elevated risk of extreme rainfall events and flooding for Eastern Africa during the October-December short rains.
Sources:
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Year-on-Year Trends
The 4byo Climate Helix – Tanzania
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Tanzania – Monthly Temperature – All Years
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – Tanzania
Our World in Data / NOAA - Anomalies vs 1901-2000 mean
Shifting Seasons
Wet / dry seasonsKöppen Aw · TropicalTanzania doesn't have a warm/cold cycle - its monthly temperature range is only 3.0°C across the year - but it does have a strong wet/dry cycle (the wettest month gets 25× as much rain as the driest). So we track how the wet season has shifted instead.
Monthly rainfall climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Jan (+37 mm, +26%).
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Rainfall & Precipitation
Rainfall & Rain Days – Totals
Headline: anomaly vs the 1961–1990 mean. Small figure: the actual value. Rank: position in the full record (1st = highest ever). Record: highest (or lowest) value on record with its year.
Climate Systems
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Emissions & Energy
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Explore Climate Data
Data Sources
Data Sources for Tanzania
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.
FAQs
FAQs
How is the climate in Tanzania changing?
Tanzania 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.
Where does the climate data for Tanzania come from?
Climate data for Tanzania 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 Tanzania climate data cover?
The Tanzania climate profile covers Dar es Salaam, Dodoma, Mwanza, Arusha and surrounding areas. Temperature, rainfall and emissions data for Tanzania
How often is the Tanzania climate update refreshed?
The Tanzania 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.