Isiro, DR Congo experiences average highs of 29°C (84°F) and lows of 20°C (68°F) throughout the year. Rainfall is frequent, averaging about 18 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Isiro, DR Congo Weather & Climate 2026
Monthly climate averages for Isiro, DR Congo. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.4/10
Best: January, December
UV Index
8
High
Temperature 29°C / 20°C
Feels Like 34°C / 23°C
Rainy Days 18
Rainfall 124 mm
Sunshine 10 h
Humidity 81%
Wind Speed 9 km/h
Dew Point 21°C
Hottest Month
34°C
February
Avg Low22°C
Rain4days
Coldest Month
20°C
August
Avg High27°C
Rain25days
Driest Month
2days
January
Avg High33°C
Avg Low20°C
Windiest Month
11 km/h
February (Gusts 28)
Worst Time to Visit
Consider avoiding March, April, May due to heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:03
Daylight 12.3h
Sunset 18:20
Live conditions—
Isiro on the map · live conditions
Isiro, DR Congo
- Continent
- Africa
- Country
- DR Congo
- City
- Isiro
- Population
- 255.4K
- Coordinates
- 2.77°, 27.62°
Seasonal Breakdown
Spring
Mar–May
Avg High 30°C
Avg Low 21°C
Rain 19 days/mo
Summer
Jun–Aug
Avg High 27°C
Avg Low 20°C
Rain 24 days/mo
Autumn
Sep–Nov
Avg High 28°C
Avg Low 20°C
Rain 24 days/mo
Winter
Dec–Feb
Avg High 32°C
Avg Low 21°C
Rain 4 days/mo
2/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 33°C / 20°C . Feb: 34°C / 22°C . Mar: 31°C / 22°C . Apr: 29°C / 21°C . May: 29°C / 21°C . Jun: 28°C / 20°C . Jul: 27°C / 20°C . Aug: 27°C / 20°C . Sep: 28°C / 20°C . Oct: 28°C / 20°C . Nov: 28°C / 20°C . Dec: 30°C / 20°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 12 mm. Feb: 19 mm. Mar: 111 mm. Apr: 150 mm. May: 129 mm. Jun: 128 mm. Jul: 143 mm. Aug: 168 mm. Sep: 202 mm. Oct: 213 mm. Nov: 171 mm. Dec: 39 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 56%. Feb: 55%. Mar: 75%. Apr: 85%. May: 88%. Jun: 89%. Jul: 90%. Aug: 90%. Sep: 90%. Oct: 90%. Nov: 88%. Dec: 76%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 11 km/h . Feb: 11 km/h . Mar: 11 km/h . Apr: 9 km/h . May: 8 km/h . Jun: 7 km/h . Jul: 7 km/h . Aug: 7 km/h . Sep: 8 km/h . Oct: 7 km/h . Nov: 8 km/h . Dec: 10 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 11h. Mar: 10h. Apr: 9h. May: 10h. Jun: 9h. Jul: 9h. Aug: 9h. Sep: 9h. Oct: 9h. Nov: 9h. Dec: 10h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 9. Mar: UV 9. Apr: UV 8. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 9. Oct: UV 8. Nov: UV 8. Dec: UV 8.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 21 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Feb 2025 · 34°C | Feb · 34°C |
| Coldest month | Aug 2025 · 19°C | Aug · 20°C |
| Wettest month | Oct 2025 · 218 mm | Oct · 213 mm |
| Windiest month | Feb 2025 · 11 km/h | Feb · 11 km/h |
Month-by-Month Weather Table
January best
Good 
February
Fair March
Poor April
Wet May
Wet June
Wet July
Wet August
Wet September
Wet October
Wet November
Wet December best
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 33°C / 20°C | 35°C / 22°C | 2days (12 mm) Excellent | 10.7h Excellent | 56% Moderate | 8.6 Very High | Good | View Details |
| February | 34°C / 22°C | 36°C / 23°C | 4days (19 mm) Good | 10.5h Excellent | 55% Moderate | 8.9 Very High | Fair | View Details |
| March | 31°C / 22°C | 36°C / 24°C | 16days (111 mm) Wet | 10h Excellent | 75% Muggy | 9 Very High | Poor | View Details |
| April | 29°C / 21°C | 34°C / 24°C | 20days (150 mm) Wet | 9.3h Good | 85% Humid | 8 Very High | Wet | View Details |
| May | 29°C / 21°C | 34°C / 24°C | 22days (129 mm) Wet | 9.5h Good | 88% Very Muggy | 7.9 Very High | Wet | View Details |
| June | 28°C / 20°C | 33°C / 23°C | 22days (128 mm) Wet | 9.4h Good | 89% Very Muggy | 7.8 Very High | Wet | View Details |
| July | 27°C / 20°C | 32°C / 23°C | 24days (143 mm) Wet | 8.9h Good | 90% Very Muggy | 7.6 Very High | Wet | View Details |
| August | 27°C / 20°C | 32°C / 23°C | 25days (168 mm) Wet | 9h Good | 90% Very Muggy | 8 Very High | Wet | View Details |
| September | 28°C / 20°C | 33°C / 23°C | 25days (202 mm) Wet | 8.9h Good | 90% Very Muggy | 8.5 Very High | Wet | View Details |
| October | 28°C / 20°C | 33°C / 23°C | 26days (213 mm) Wet | 8.6h Good | 90% Very Muggy | 8.1 Very High | Wet | View Details |
| November | 28°C / 20°C | 33°C / 23°C | 21days (171 mm) Wet | 9.1h Good | 88% Very Muggy | 7.7 Very High | Wet | View Details |
| December best | 30°C / 20°C | 34°C / 22°C | 6days (39 mm) Good | 10.4h Excellent | 76% Humid | 8.2 Very High | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Isiro are January, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Isiro, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Isiro is February, with average daytime highs of 34°C (93°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Isiro is August, with average overnight lows of 20°C (67°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Isiro is October, averaging 213mm of precipitation across 26 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Isiro runs through October, August, September, July, with the heaviest rainfall in October. Based on 10-year averages for Isiro.
Isiro receives approximately 114 sunshine hours per year. The sunniest month is January with around 11 hours. Based on climate data for Isiro.
The least favorable months to visit Isiro are March, April, May, primarily due to heavy rainfall, oppressive humidity. For the best conditions, consider January, December instead.
The annual average UV index in Isiro is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Isiro is 81%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Average wind speeds in Isiro are 9 km/h (6 mph). The windiest month is February with peak winds reaching 11 km/h (7 mph) (gusts up to 28 km/h / 17 mph).
Isiro averages 1 clear-sky days per month with overall cloud cover around 76%. The clearest skies occur in January.
The annual average dew point in Isiro is 21°C (70°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Isiro has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Isiro ranges from 23°C (73°F) to 34°C (93°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Isiro, with a climate score of 5.8/10. Consider visiting during January, December instead for better conditions.
For June in Isiro, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 28°C (82°F) and 22 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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