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Contents
- The climate of Monrovia
- The best time to visit Monrovia
- The worst time to visit Monrovia
- Spring weather in Monrovia
- Summer weather in Monrovia
- Autumn weather in Monrovia
- Winter weather in Monrovia
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Monrovia
Monrovia, the capital city of Liberia, is situated in a dominantly Am (Tropical Monsoon) Köppen climate zone. This hints toward general weather conditions that are characterized by high temperatures, significant humidity, and abundant rainfall. Monthly average high temperatures range narrowly from 26.2°C (79.2°F) to 29.9°C (85.8°F). Less variation is observed in low temperatures, fluctuating between 24.1°C (75.4°F) to 26.2°C (79.2°F) throughout the year.
Humidity levels remain fairly consistent, generally ranging from 76% to 86% relative humidity. On the other hand, rainfall shows a more distinct pattern. The rainy season spans from May to November, with monthly average rainfall peaking at 308mm (12.13") in June. During this period, the number of rainfall days also spike, reaching the high value of 30.3 days in October.
Monrovia's climate is also characterized by fairly consistent daylight hours, varying between 11.8 hours to 12.5 hours. However, sunshine hours and days prominently drop during the rainy season, reaching a low of 3.9 hours and 0.3 days respectively in August, due to the abundance of cloud cover. Wind speed varies from 7.9km/h (4.9mph) to 14.8km/h (9.2mph), with gusty winds becoming more common from May to September, a period that corresponds with the intense rainy season.
Humidity levels remain fairly consistent, generally ranging from 76% to 86% relative humidity. On the other hand, rainfall shows a more distinct pattern. The rainy season spans from May to November, with monthly average rainfall peaking at 308mm (12.13") in June. During this period, the number of rainfall days also spike, reaching the high value of 30.3 days in October.
Monrovia's climate is also characterized by fairly consistent daylight hours, varying between 11.8 hours to 12.5 hours. However, sunshine hours and days prominently drop during the rainy season, reaching a low of 3.9 hours and 0.3 days respectively in August, due to the abundance of cloud cover. Wind speed varies from 7.9km/h (4.9mph) to 14.8km/h (9.2mph), with gusty winds becoming more common from May to September, a period that corresponds with the intense rainy season.
The best time to visit Monrovia
For a pleasant visit to Monrovia, the December to March period is suggested as the most appealing considering the city's tropical monsoon climate. During these months, average high temperatures remain at a balmy 28°C (82.4°F) to 29.9°C (85.8°F), while rainfall remains relatively low, with December witnessing just 59mm (2.32") across 19.2 days. These months also mark the sunniest time of the year, with daylight extending over approximately 11.8 hours. Average wind speeds hover around a gentle 8.5km/h (5.3mph) during December, making outdoor activities slightly more appealing.
The worst time to visit Monrovia
Considering the heavy rainfall and associated increase in humidity, the period from May to November might not offer the most comfortable visit to Monrovia. Particularly, June, the wettest month, witnesses average rain accumulation of up to 308mm (12.13") across nearly 29.3 days. Notably, the heightened cloud cover during this time reduces the available sunshine to 5.9 hours per day, further reducing the appeal for outdoor activities.
Spring weather in Monrovia
Defined by climbing temperatures and the onset of rains, March through May sees Monrovia transitioning from the dry to the rainy season. Average high temperatures increase slightly from 29.7°C (85.5°F) to 29.8°C (85.6°F), while low temperatures move up marginally from 25.7°C (78.3°F) to 26.2°C (79.2°F). Rainfall progressively increases across these months, from a moderate 38mm (1.5") in March to a substantial 164mm (6.46") in May.
Summer weather in Monrovia
Summer months - June through August - are the heart of the rainy season in Monrovia, marked by heavy rainfall, high humidity and cloud cover. The average high temperatures cool slightly to around 27°C (80.6°F), while low temperatures range between 24.1°C (75.4°F) and 25°C (77°F). Average rainfall reaches its peak at 308mm (12.13") in June and stays significant until August with 261mm (10.28").
Autumn weather in Monrovia
The rainy season continues throughout the autumn months of September through November, with average high temperatures recovering slightly to a range of 26.8°C (80.2°F) to 29.5°C (85.1°F) and low temperatures varying between 24.3°C (75.7°F) and 25.3°C (77.5°F). Although rainfall begins to taper off to 161mm (6.34") in November, the number of rain days remains high.
Winter weather in Monrovia
December through February are the driest months in Monrovia, which is characteristic of the city’s tropical monsoon climate. Average high temperatures range between 28.7°C (83.7°F) and 29.9°C (85.8°F), while the average low temperatures hover around a comfortable 25°C (77°F) to 25.3°C (77.5°F). Rainfall is significantly reduced to just 59mm (2.32") in December and continues to remain low through February, providing a respite from the high humidity and precipitation of previous months.
Weather in January
For Monrovia, Liberia, January comes with a high temperature of 29.9°C (85.8°F) and a low of 25.2°C (77.4°F), making it a hot beginning to the year. A significant point to note is the generous sunshine that January experiences, which totals to 9.3 hours coupled with a relative humidity of 76%. Weather in January »
Weather in February
February’s weather displays consistency, closely similar to January’s weather patterns. The temperature remains high while the humidity increases to 80%. Continuous rainfall, registering at 38mm (1.5"), is one of the distinctive features of February’s climate. Weather in February »
Weather in March
In Monrovia, March kicks off a phase of increased rainfall, an upward trend that persists until June. Examining the data exposes March as one of the months with substantial rainfall, recording 69mm (2.72"). The city adopts a damp atmosphere with a concurrent rise in humidity. Weather in March »
Weather in April
April comes with an increased precipitation pattern, signaling the acceleration of Monrovia's rainy season. A significant jump in rainfall from 72mm (2.83") in April warns of the impending heavy rains. The looming May precipitation is unveiled through the April's wet pattern. Weather in April »
Weather in May
Heavy rainfall characterizes May's weather, indicating the peak of Monrovia's rainy season. May is the wettest month, according to the data, with rainfall hitting a high of 164mm (6.46"). As May concludes, a sense of anticipation builds up for the anticipated break in Monrovia's monsoon cycle coming in June. Weather in May »
Weather in June
June shows a slight relief in rain though the city still endures a damp environment. Despite the easing up, the rainy trend remains distinctly noticeable, with the total rainfall of 308mm (12.13"). Although June weather shows a decrease in rainfall, the humidity level reaches its peak. Weather in June »
Weather in July
July brings a further depression in rainfall, coupled with a noticeable dip in temperature. The data reveals a relative moderation in rainfall, registering at 237mm (9.33") in July. A gradual downward trend in temperature can be noticed shifting into August. Weather in July »
Weather in August
August experiences a considerable downgrade in temperature but upholds the city's windy atmosphere. The temperature drops slightly to a high of 26.2°C (79.2°F), marking it as the coldest month in Monrovia. The winters’ presence is moderately strong, but a surge in wind speed spreads a cool atmosphere in the city. Weather in August »
Weather in September
September brings a slight turnaround in weather with a mild rise in temperature. The rainfall remains consistent at 265mm (10.43"), however, the humidity reaches its highest level of 86%. An increase in wind speed can be experienced while moving into October. Weather in September »
Weather in October
October sees a noticeable dwindle in precipitation, marking the start of a drying phase. A noteworthy decline in rainfall sets October apart, as it posts 238mm (9.37") in this month. The wind speed declines, and the weather becomes relatively calm with dropping humidity levels. Weather in October »
Weather in November
November brings the city's temperature and rainfall to a stabilization phase, setting the stage for the dry season to follow. November features a substantial drop in rainfall which stands at 161mm (6.34"). The decrease in rainfall is accompanied by a subtle drop in temperature as well. Weather in November »
Weather in December
December signals the year's end with consistent weather conditions showing minimal variation. The month experiences its lowest rainfall of 59mm (2.32"), announcing the arrival of the dry season. Comparing with the previous months, the difference in temperature, daylight hours, and sunshine isn't significant. Weather in December »
Updated: Jul 14, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest?
Monrovia's January weather, with an average high temperature of 29.9°C (85.8°F) and an average low temperature of 25.2°C (77.4°F), tends to be the warmest of the year.
What is the least humid month?
With an average relative humidity of 76%, January is the least humid month.
What is the driest month?
The month with the least rainfall in Monrovia is January, when the rain falls for 14.8 days and typically collects 31mm (1.22") of precipitation.
How much does it rain?
In Monrovia, during the entire year, the rain falls for 298.8 days and collects up to 1903mm (74.92") of precipitation.
What month has the most sunshine?
With an average of 9.3h of sunshine, January has the most sunshine of the year.
What are the months with the highest UV index in Monrovia?
The months with the highest UV index are January through May, October through December, with an average maximum UV index of 7.
When is the sea warmest?
With an average sea temperature of 28.9°C (84°F), May is the month with the warmest seawater.
What is the wettest month in Monrovia?
June is the month with the most rainfall in Monrovia, Liberia. Rain falls for 29.3 days and accumulates 308mm (12.13") of precipitation.
When are the longest days?
With an average of 12h and 30min of daylight, June has the longest days of the year.
What is the month with the lowest UV index?
June through September, with an average maximum UV index of 6, are months with the lowest UV index.
What month is the coldest?
Monrovia's coldest month, August, generally records average temperatures ranging from a high of 26.2°C (79.2°F) to a low of 24.1°C (75.4°F).
When is the sea coldest?
August and September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
What is the month with the least sunshine?
The month with the least sunshine is August, with an average of 3.9h of sunshine.
What is the most humid month?
September is the most humid month, with an average relative humidity of 86%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 11h and 48min of daylight.
Is there Daylight Saving Time (DST) in Monrovia?
Monrovia does not observe Daylight Saving Time (DST). GMT timezone is used over the entire year.
Average temperature
Monrovia, Liberia
The warmest month (with the highest average high temperature) is January (29.9°C).
The month with the lowest average high temperature is August (26.2°C).
The month with the highest average low temperature is April (26.2°C).
The coldest months (with the lowest average low temperature) are July and August (24.1°C).
Average pressure
Monrovia, Liberia
- Average pressure in January:
1011.3mbar - Average pressure in February:
1010.6mbar - Average pressure in March:
1010.7mbar - Average pressure in April:
1010.7mbar - Average pressure in May:
1011.8mbar - Average pressure in June:
1013.5mbar
- Average pressure in July:
1014.2mbar - Average pressure in August:
1013.9mbar - Average pressure in September:
1013.1mbar - Average pressure in October:
1011.8mbar - Average pressure in November:
1011mbar - Average pressure in December:
1011.2mbar
The month with the highest atmospheric pressure is July (1014.2mbar).
The month with the lowest atmospheric pressure is February (1010.6mbar).
Average wind speed
Monrovia, Liberia
- Average wind speed in January:
9.8km/h - Average wind speed in February:
10.8km/h - Average wind speed in March:
10.5km/h - Average wind speed in April:
10.3km/h - Average wind speed in May:
9.7km/h - Average wind speed in June:
11.4km/h
- Average wind speed in July:
14.1km/h - Average wind speed in August:
14.8km/h - Average wind speed in September:
11.3km/h - Average wind speed in October:
9.1km/h - Average wind speed in November:
7.9km/h - Average wind speed in December:
8.5km/h
The windiest month (with the highest average wind speed) is August (14.8km/h).
The calmest month (with the lowest average wind speed) is November (7.9km/h).
Average humidity
Monrovia, Liberia
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is January (76%).
Average rainfall
Monrovia, Liberia
- Average rainfall in January:
31mm - Average rainfall in February:
38mm - Average rainfall in March:
69mm - Average rainfall in April:
72mm - Average rainfall in May:
164mm - Average rainfall in June:
308mm
- Average rainfall in July:
237mm - Average rainfall in August:
261mm - Average rainfall in September:
265mm - Average rainfall in October:
238mm - Average rainfall in November:
161mm - Average rainfall in December:
59mm
The wettest month (with the highest rainfall) is June (308mm).
The driest month (with the least rainfall) is January (31mm).
Average rainfall days
Monrovia, Liberia
- Average rainfall days in January:
14.8 days - Average rainfall days in February:
16.5 days - Average rainfall days in March:
23.1 days - Average rainfall days in April:
24.1 days - Average rainfall days in May:
28.5 days - Average rainfall days in June:
29.3 days
- Average rainfall days in July:
28.2 days - Average rainfall days in August:
27.3 days - Average rainfall days in September:
29 days - Average rainfall days in October:
30.3 days - Average rainfall days in November:
28.5 days - Average rainfall days in December:
19.2 days
The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is January (14.8 days).
Average sea temperature
Monrovia, Liberia
The best month for swimming (with the highest average sea temperature) is May (28.9°C).
The coldest months (with the lowest average sea temperature) are August and September (27°C).
Average daylight / Average sunshine
Monrovia, Liberia
- Average daylight in January:
11h and 5min - Average daylight in February:
11h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 2min - Average daylight in June:
12h and 3min
- Average daylight in July:
12h and 2min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 5min - Average daylight in December:
11h and 5min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in January:
9h and 2min - Average sunshine in February:
8h and 5min - Average sunshine in March:
8h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
7h and 3min - Average sunshine in June:
5h and 5min
- Average sunshine in July:
4h and 2min - Average sunshine in August:
3h and 5min - Average sunshine in September:
5h and 4min - Average sunshine in October:
7h and 3min - Average sunshine in November:
8h and 3min - Average sunshine in December:
8h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 18min).
The month with the least sunshine is August (Average sunshine: 3h and 54min).
Average sunshine days
Monrovia, Liberia
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
9.6 days - Average sunshine days in March:
5.1 days - Average sunshine days in April:
4.6 days - Average sunshine days in May:
1.3 days - Average sunshine days in June:
0.4 days
- Average sunshine days in July:
1.5 days - Average sunshine days in August:
2.3 days - Average sunshine days in September:
0.3 days - Average sunshine days in October:
0.6 days - Average sunshine days in November:
0.8 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is January (14.3 days).
The month with the least sunshine days is September (0.3 days).
Average UV index
Monrovia, Liberia
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover
Monrovia, Liberia
The month with the most cloud cover is August (Cloud cover 76).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Monrovia, Liberia
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).
