Umuahia climate
Umuahia (Nigeria) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 25 °C77 °F, and about 1,791 mm70 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Umuahia climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2984 | 1967 | 2476 | 150.6 |
| Feb | 3086 | 2271 | 2678 | 341.3 |
| Mar | 3085 | 2373 | 2679 | 783.1 |
| Apr | 2985 | 2374 | 2679 | 1365.3 |
| May | 2984 | 2373 | 2679 | 1756.9 |
| Jun | 2882 | 2272 | 2577 | 2319.1 |
| Jul | 2781 | 2271 | 2476 | 2279.0 |
| Aug | 2781 | 2170 | 2476 | 2499.8 |
| Sep | 2781 | 2271 | 2576 | 30812 |
| Oct | 2882 | 2272 | 2577 | 2319.1 |
| Nov | 2984 | 2272 | 2578 | 943.7 |
| Dec | 2984 | 2068 | 2576 | 130.5 |
| Year | 3086 | 1967 | 2577 | 1,79170 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 74% | 47% | 5.0 | 11:50 |
| Feb | 80% | 61% | 4.9 | 11:56 |
| Mar | 86% | 79% | 4.9 | 12:05 |
| Apr | 88% | 82% | 4.9 | 12:14 |
| May | 89% | 81% | 4.7 | 12:22 |
| Jun | 90% | 85% | 4.2 | 12:26 |
| Jul | 90% | 89% | 3.8 | 12:25 |
| Aug | 90% | 90% | 3.7 | 12:18 |
| Sep | 91% | 90% | 4.1 | 12:08 |
| Oct | 91% | 84% | 4.5 | 11:59 |
| Nov | 87% | 65% | 4.8 | 11:52 |
| Dec | 78% | 46% | 5.0 | 11:48 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Umuahia is like
The warmest month is March, with an average high of 30 °C85 °F and a low of 23 °C73 °F. The coldest is January, when highs average 29 °C84 °F and lows 19 °C67 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.1 °C3.8 °F.
It is wet, with about 1,791 mm70 in of precipitation per year. The wettest three-month stretch is August–October, which brings 44% of the annual total. Months with less than 20 mm0.8 in on average: December and January. The wettest month is September (308 mm12 in), the driest is December (13 mm0.5 in).
Relative humidity ranges from 74% in January to 91% in September. The clearest skies (lowest average cloud amount, 46%) are typical of December. Average wind speed near the ground ranges from 4 km/h (2 mph) in November to 7 km/h (4 mph) in August.
Best time to visit Umuahia
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December and January: average highs of 29 °C84 °F to 29 °C84 °F with 13 mm0.5 in to 15 mm0.6 in of precipitation per month.
The most challenging month is September, which is very wet (308 mm12 in) and humid (91% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Umuahia
- Wetter months (May–October) — highs 2781 to 29 °C84 °F, lows 2170 to 23 °C73 °F, about 237 mm9.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (November–April) — highs 2984 to 30 °C86 °F, lows 1967 to 23 °C74 °F, about 62 mm2.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Umuahia compares
Compared with Aba, about 49 km to the south, Umuahia is on average 0.5 °C0.8 °F cooler and receives 23% less precipitation (1,791 mm70 in vs 2,315 mm91 in). The difference is largest in December (0.9 °C1.7 °F cooler).
Of the 74 places in Nigeria covered by World Climates, Umuahia is the 54th warmest by annual mean temperature and the 12th wettest by annual precipitation. See all of them on the Nigeria climate page.
Places in other countries with the most similar temperature and rainfall pattern: Man (Ivory Coast, Aw), Berbérati (Central African Republic, Aw) and Nzérékoré (Guinea, Aw).
Nearby places
- Okigwe 37 km · 25 °C77 °F · 1,653 mm65 in
- Amaigbo 48 km · 26 °C78 °F · 1,714 mm67 in
- Aba 49 km · 26 °C78 °F · 2,315 mm91 in
- Owerri 51 km · 26 °C78 °F · 1,841 mm72 in
- Uyo 72 km · 26 °C78 °F · 2,931 mm115 in
- Ugep 72 km · 26 °C78 °F · 1,714 mm67 in
- Awka 90 km · 26 °C78 °F · 1,705 mm67 in
- Okrika 98 km · 26 °C79 °F · 2,520 mm99 in
Frequently asked questions
What is the warmest month in Umuahia?
March is the warmest month in Umuahia, with an average high of 30 °C (85 °F) and an average low of 23 °C (73 °F).
What is the coldest month in Umuahia?
January is the coldest month, with an average high of 29 °C (84 °F) and an average low of 19 °C (67 °F).
When does it rain the most in Umuahia?
September is the wettest month with about 308 mm (12.1 in) of precipitation; December is the driest with about 13 mm (0.5 in).
What is the best time to visit Umuahia?
Judging by long-term averages, the most comfortable months are December and January.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 93 m, while Umuahia lies at about 148 m. Temperatures on this page were therefore adjusted by −0.4 °C0.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.