Expand
Contents
- The climate of Sussex
- The best time to visit Sussex
- The worst time to visit Sussex
- Spring weather in Sussex
- Summer weather in Sussex
- Autumn weather in Sussex
- Winter weather in Sussex
- 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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Sussex
Located within a geographical position subject to Tropical monsoon conditions, Sussex, Sierra Leone encounters an Am type of climate according to the Köppen climate classification. The yearly weather conditions in Sussex reveal a noticeable consistency in temperatures paired with significant oscillations in rainfall.
Throughout the year, the highest average temperatures fluctuate between a balmy 27.3°C (81.1°F) observed in August and a heat peak of 31.4°C (88.5°F) in January. On the other hand, the lowest temperatures do not exhibit much variance, maintaining a steady average range between a cool 23.9°C (75°F) in August going up to a still comfortable 26.2°C (79.2°F) in May.
Relative humidity seems to follow a corresponding pattern, with the driest months between January and February, humanity increases reaching its highest point in August. Rainfall patterns, however, vary significantly, with February being a relatively dry month with an average rainfall of 1mm (0.04"), while July and August experience the heaviest downpours with an impressive 387mm (15.24") and 391mm (15.39") respectively.
The frequency of rainfall follows a similar pattern to quantity. February has less than one day of rainfall, while July and August are the peak months with over 30 days of reported rainfall. Notable is the variation in the amount of daylight, from a high of 12.6 hours in June and July to a low of 11.6 hours in December. On the other hand, the actual hours of sunshine decrease to a low of 4.8 hours in August due to increased rainfall and cloud cover.
Throughout the year, the highest average temperatures fluctuate between a balmy 27.3°C (81.1°F) observed in August and a heat peak of 31.4°C (88.5°F) in January. On the other hand, the lowest temperatures do not exhibit much variance, maintaining a steady average range between a cool 23.9°C (75°F) in August going up to a still comfortable 26.2°C (79.2°F) in May.
Relative humidity seems to follow a corresponding pattern, with the driest months between January and February, humanity increases reaching its highest point in August. Rainfall patterns, however, vary significantly, with February being a relatively dry month with an average rainfall of 1mm (0.04"), while July and August experience the heaviest downpours with an impressive 387mm (15.24") and 391mm (15.39") respectively.
The frequency of rainfall follows a similar pattern to quantity. February has less than one day of rainfall, while July and August are the peak months with over 30 days of reported rainfall. Notable is the variation in the amount of daylight, from a high of 12.6 hours in June and July to a low of 11.6 hours in December. On the other hand, the actual hours of sunshine decrease to a low of 4.8 hours in August due to increased rainfall and cloud cover.
The best time to visit Sussex
Considering both temperature and precipitation, the optimal period to visit Sussex falls between the months of December to April. During this window, the place experiences the lowest average rainfall extending from 2mm (0.08") in January to 6mm (0.24") in March with temperatures remaining relatively stable, averaging between 24.1°C (75.4°F) to 25.3°C (77.5°F), providing comfortable conditions for outdoor activities.
The worst time to visit Sussex
Travelers should exercise caution when planning a visit between May and November. With the onset of the monsoon, average rainfall dramatically increases from 66mm (2.6") in May to a substantial peak of 391mm (15.39") in August. Consequently, the number of rainfall days also expands significantly, impacting visibility and outdoor experiences.
Spring weather in Sussex
Spring months in Sussex deliver a climb in both temperatures and rainfall. From March to May, average high temperatures move from 31°C (87.8°F) to 30.7°C (87.3°F), while the average low remains slightly cooler from 24.6°C (76.3°F) to 26.2°C (79.2°F). The rainy season begins with rainfall incrementally increasing from 6mm (0.24") in March to 66mm (2.6") in May.
Summer weather in Sussex
A noticeable trait of summer weather in Sussex is the sharp rise in rainfall. June marks the onset of the monsoon season, with average rainfall tallying 199mm (7.83"), and it increases to the year's peak at 391mm (15.39") in August. Though temperatures remain relatively consistent, the heavy rain and increased humidity may provide discomfort to travelers. Average high temperatures range from 29.3°C (84.7°F) to 27.3°C (81.1°F) while the average low nestles between 25.3°C (77.5°F) to 23.9°C (75°F).
Autumn weather in Sussex
The autumn season, extending from September to November, witnesses gradual reduction in rainfall from 220mm (8.66") to 59mm (2.32"). Correspondingly, the number of rainfall days decreases, resulting in a gradual increase in sunshine hours. Stable temperatures persist, with the average high resting between 28.1°C (82.6°F) to 30.1°C (86.2°F), and the average low ranging from 24.4°C (75.9°F) to 25.3°C (77.5°F).
Winter weather in Sussex
Winter offers a departure from the heavy rainfall and humidity observed for most of the year. December ushers in a dry period, with negligible rainfall of 7mm (0.28") and relatively low humidity. Average high temperatures continue to remain stable at 31°C (87.8°F), while the average low dips slightly to 24.5°C (76.1°F). With 11.7 hours of daylight, winter serves as an inviting window for outdoor explorations in Sussex, Sierra Leone.
Weather in January
In January, Sussex experiences a blend of warmth and moderate humidity. The monthly average maximum temperature tops at 31.4°C (88.5°F) and minimal rainfall of only 2mm (0.08") occurs, indicating a dry weather pattern. The winds perform a light dance with an average speed of 9.3km/h (5.8mph), creating a gentle, constant beach breeze. Weather in January »
Weather in February
Shifting from January to February, the weather remains mostly stable with minimal changes in Sussex. The temperatures slightly decline with the maximum average reaching 31.3°C (88.3°F). The most noticeable change in February is the elevation in humidity levels by 2% and a reduced rainfall quantity of just 1mm (0.04"). Weather in February »
Weather in March
March ushers in a few alterations in Sussex weather. It hosts an experienced change in atmospheric pressure, with an average reading of 1010.4mb. March sees an increase in rainfall to 6mm (0.24"), a substantial leap when compared to preceding months. Weather in March »
Weather in April
The arrival of April brings about a striking change in the landscape of Sussex weather patterns. There is a significant increase in the quantity of rainfall, soaring from 6mm (0.24") in March to 18mm (0.71") in April. Noteworthy is the rise in relative humidity to 74%, hinting at an escalation in the rainy season impact. Weather in April »
Weather in May
The month of May in Sussex marks the peak of the rainy season. This month registers a remarkable increase in rainfall to 66mm (2.6"). A distinct shift toward cooler temperatures occurs, with the maximum temperature averaging 30.7°C (87.3°F). Weather in May »
Weather in June
Transitioning into June, Sussex witnesses an upswing in rainfall with a dramatic rise to 199mm (7.83"). There is also a further dip in maximum temperatures to a comfortable 29.3°C (84.7°F). A merely nominal reduction in daylight hours is also recorded. Weather in June »
Weather in July
July holds the record for the heaviest rainfall in Sussex with a high of 387mm (15.24"). A noteworthy drop in maximum temperatures happens, descending to a comfortable 27.8°C (82°F). However, the weather pattern sees a fair amount of sunshine with days lasting up to 12.6 hours. Weather in July »
Weather in August
August weather stays on the same course as July in Sussex. The rainfall quantity remains high at 391mm (15.39"), and the temperature hovers around 27.3°C (81.1°F) for maximum average. The intensity of the winds increases, with an average speed of 12km/h (7.5mph). Weather in August »
Weather in September
Alterations appear in September weather in Sussex. A substantial decrease in rainfall to 220mm (8.66") signals the receding of the rainy season. The maximum temperature rises moderately to 28.1°C (82.6°F), and a steady wind speed of 9.5km/h (5.9mph) is maintained. Weather in September »
Weather in October
With the arrival of October, Sussex experiences a visible shift in weather. The quantity of rainfall further diminishes to 151mm (5.94"). A noticeable surge in maximum temperature occurs, reclaiming the 29.5°C (85.1°F) mark. There are longer, sunnier days, with 11.9 hours of daylight. Weather in October »
Weather in November
November ushers more sunshine into Sussex. Both the maximum temperature and rainfall remain stable at 30.1°C (86.2°F) and 59mm (2.32"), respectively. Yet, tarnishing this sunny picture is the reduced wind speed, dipping to a yearly low of 6.8km/h (4.2mph). Weather in November »
Weather in December
Closing out the year, December weather in Sussex stabilizes with barely noticeable changes from November. The maximum temperature hits the 31°C (87.8°F) mark, and rainfall is at a yearly low of 7mm (0.28"). The wind speed remains relatively steady, with a minor increase to 7.6km/h (4.7mph). Weather in December »
[Resources]Frequently asked questions
What part of the year is the hottest in Sussex?
January is the month when Sussex's temperatures reach their peak, with averages of 31.4°C (88.5°F) and lows of 24.1°C (75.4°F).
What is the least humid month in Sussex?
The least humid month in Sussex, Sierra Leone, is January, with an average relative humidity of 68%.
How much does it rain in Sussex?
Throughout the year, in Sussex, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.
When is the highest UV index in Sussex?
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index.
What is the driest month in Sussex?
The month with the least rainfall in Sussex is February, when the rain falls for 0.8 days and typically collects 1mm (0.04") of precipitation.
What month has the most sunshine in Sussex?
With an average of 9.9h of sunshine, February has the most sunshine of the year in Sussex.
When are the longest days in Sussex?
With an average of 12h and 36min of daylight, June has the longest days of the year in Sussex.
What are the months with the lowest UV index in Sussex?
The months with the lowest UV index in Sussex are July and August, with an average maximum UV index of 6.
What month is the coldest in Sussex?
The lowest temperatures are recorded in August, with averages reaching a high of 27.3°C (81.1°F) and a low of 23.9°C (75°F).
What is the most humid month in Sussex?
August is the most humid month, with an average relative humidity of 86%.
What is the rainiest month in Sussex?
The month with the most rainfall in Sussex is August, when the rain falls for 30.2 days and typically aggregates up to 391mm (15.39") of precipitation.
What is the month with the least sunshine in Sussex?
The month with the least sunshine is August, with an average of 4.8h of sunshine.
What is the month with the shortest days in Sussex?
December has the shortest days of the year in Sussex, with an average of 11h and 36min of daylight.
Is there Daylight Saving Time (DST) in Sussex?
Sussex does not utilize Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature
Sussex, Sierra Leone
The warmest month (with the highest average high temperature) is January (31.4°C).
The month with the lowest average high temperature is August (27.3°C).
The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).
Average pressure
Sussex, Sierra Leone
- Average pressure in January:
1011.2mbar - Average pressure in February:
1010.4mbar - Average pressure in March:
1010.4mbar - Average pressure in April:
1010.5mbar - Average pressure in May:
1011.6mbar - Average pressure in June:
1013.3mbar
- Average pressure in July:
1013.8mbar - Average pressure in August:
1013.4mbar - Average pressure in September:
1012.8mbar - Average pressure in October:
1011.6mbar - Average pressure in November:
1010.9mbar - Average pressure in December:
1011.1mbar
The month with the highest atmospheric pressure is July (1013.8mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).
Average wind speed
Sussex, Sierra Leone
- Average wind speed in January:
9.3km/h - Average wind speed in February:
10.7km/h - Average wind speed in March:
11.6km/h - Average wind speed in April:
11.6km/h - Average wind speed in May:
10.4km/h - Average wind speed in June:
9.7km/h
- Average wind speed in July:
11.3km/h - Average wind speed in August:
12km/h - Average wind speed in September:
9.5km/h - Average wind speed in October:
7.6km/h - Average wind speed in November:
6.8km/h - Average wind speed in December:
7.6km/h
The windiest month (with the highest average wind speed) is August (12km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).
Average humidity
Sussex, Sierra Leone
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).
Average rainfall
Sussex, Sierra Leone
The wettest month (with the highest rainfall) is August (391mm).
The driest month (with the least rainfall) is February (1mm).
Average rainfall days
Sussex, Sierra Leone
- Average rainfall days in January:
1.4 days - Average rainfall days in February:
0.8 days - Average rainfall days in March:
5.8 days - Average rainfall days in April:
9.7 days - Average rainfall days in May:
19.6 days - Average rainfall days in June:
27.3 days
- Average rainfall days in July:
30.3 days - Average rainfall days in August:
30.2 days - Average rainfall days in September:
28.6 days - Average rainfall days in October:
27.9 days - Average rainfall days in November:
20.3 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (0.8 days).
Average daylight / Average sunshine
Sussex, Sierra Leone
- Average daylight in January:
11h and 4min - 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 3min - Average daylight in June:
12h and 4min
- Average daylight in July:
12h and 4min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 4min - Average daylight in December:
11h and 4min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in January:
9h and 5min - Average sunshine in February:
9h and 5min - Average sunshine in March:
9h and 4min - Average sunshine in April:
9h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
6h and 4min
- Average sunshine in July:
5h and 3min - Average sunshine in August:
4h and 5min - Average sunshine in September:
6h and 4min - Average sunshine in October:
8h and 0min - Average sunshine in November:
9h and 1min - Average sunshine in December:
9h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).
Average sunshine days
Sussex, Sierra Leone
- Average sunshine days in January:
29 days - Average sunshine days in February:
27.2 days - Average sunshine days in March:
24.6 days - Average sunshine days in April:
18.6 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
1.5 days
- Average sunshine days in July:
0.6 days - Average sunshine days in August:
0.5 days - Average sunshine days in September:
0.8 days - Average sunshine days in October:
2.3 days - Average sunshine days in November:
7.5 days - Average sunshine days in December:
25.5 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is August (0.5 days).
Average UV index
Sussex, Sierra Leone
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover
Sussex, Sierra Leone
The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is February (Cloud cover 11).
Average visibility
Sussex, Sierra Leone
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
Sussex, Sierra Leone
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
