Climate and monthly weather forecastAnnai, Guyana
Climate and monthly weather forecast
The climate of Annai
According to the Köppen climate classification, Annai, Guyana experiences an Am, or Tropical Monsoon climate. The geographical position of this location within the tropical region results in prominently wet and dry conditions. Relatively stable temperatures are noted throughout the year, seasonally ranging from 22.2°C (72°F) to 24°C (75.2°F) on the lower side, while the high side fluctuates between 30°C (86°F) and 34.5°C (94.1°F). Humidity maintains a framework from 59% to 82% throughout the year, exhibiting considerable moisture in the atmosphere at all times.Annai exhibits rainfall much of the year, seeing an annual high from 166mm (6.54") to 186mm (7.32") during May, June, and July. A significant decline can be observed as the rainfall drops to figures between 9mm (0.35") and 55mm (2.17") from January to April and again from September to December. Statistics show that the maximum average number of rainy days occurs in July, reaching 27.8 days, while January records the fewest number, a mere 6 days. Annai generally experiences minimal to no snowfall throughout the year.
Sunlight is more or less consistently available for about 12 hours daily. Sunshine durations oscillate around the 9-hour mark with peaks up to 10.5 hours in August. Additionally, the UV index is generally stable at seven for a majority of the year, dropping to six in June. The wind speed shows considerable variability, being in the range of 7.2 Kph to 16.3 Kph.
The best time to visit Annai
In taking into account the weather and climatic conditions, the most suitable time for a visit to Annai would be from August to October. During this time, temperatures are moderately high, ranging from 30°C (86°F) to 33.7°C (92.7°F), while the relative humidity decreases to between 71% and 78%. Furthermore, there is a reduction in rainfall to a range from 55mm (2.17") to 66mm (2.6"), thereby reducing discomfort from excess humidity and frequent rain. The sunshine duration is also commendable at this period, extending from 9.3 hours to 10.5 hours per day.The worst time to visit Annai
As for the most unsuitable time for a visit, the period from May to July is considered the least appealing. During this time, rainfall measures peak, deviating from 166mm (6.54") to 186mm (7.32"), making outdoor activities problematic. Despite temperatures being fairly stable, the elevated humidity levels, which peak at 82%, can potentially cause discomfort, particularly for those unaccustomed to such conditions. Reduced visibility due to heavy showers might further detract from the overall visiting experience.Spring weather in Annai
Annai's Spring extends from March to May. As such, the temperatures during this period vary from a low of 23.9°C (75°F) to a high of 34.5°C (94.1°F). Relative humidity increases and peaks up to 76%, and an expected sharp rise in rainfall can be seen, escalating from 18mm (0.71") to 166mm (6.54"). Wind speeds seem to diminish gradually during this time, landing at about 11.1 Kph by May.Summer weather in Annai
Summer in Annai spans June, July, and August. Despite being the rainiest months, the temperatures remain relatively stable, fluctuating from a low of between 22.2°C (72°F) and 22.7°C (72.9°F) to a high of from 30°C (86°F) to 31.2°C (88.2°F). The rise of humidity to its peak at 82% coincides with the increase in rainfall from 166mm (6.54") to 178mm (7.01"), then tapering off to 131mm (5.16") in August.Autumn weather in Annai
During Autumn, which spans September to November, there are observable decreases in both rainfall and humidity. Rainfall reduces from 66mm (2.6") to 50mm (1.97"), while the relative humidity decreases to between 67% and 71%. Meanwhile, temperatures remain virtually steady, with highs drifting from 33.7°C (92.7°F) to 33.5°C (92.3°F) while lows vary from 23.2°C (73.8°F) to 23.9°C (75°F).Winter weather in Annai
In the Winter months of December, January, and February, Annai experiences further reduction in rainfall to measures between 9mm (0.35") and 19mm (0.75"). Humidity levels drop to between 61% and 66%, while temperatures tweak slightly, encompassing a lower range of 23.3°C (73.9°F) to 23.6°C (74.5°F) and a higher range of 32.7°C (90.9°F) to 33.4°C (92.1°F). These weather changes constitute the cooler, drier winter climate conditions typical of Annai's tropical zone.Weather in January
January signifies the start of the new year in Annai, Guyana with warm weather characterized by high temperatures reaching up to 33.3°C (91.9°F). Despite this, the winds come in at an average speed of 15.6km/h (9.7mph), offering a much-needed respite to the locals. Weather in January »Weather in February
As the calendar turns in Annai, February ushers in warmer temperatures slightly higher than the previous month. The humidity remains relatively constant, indicating a persistent weather pattern. Periods of sunshine intermingle with patches of cloudy skies, keeping the visibility remarkably consistent. Weather in February »Weather in March
March in Annai, Guyana manifests a slight rise in temperatures while the relative humidity shows a minor reduction when juxtaposed with February's figures. Wind speed also slightly decreases, alongside a slight increase in daylight hours. Weather in March »Weather in April
April weather in Annai presents a departure from the preceding months with substantial rainfall figures clocked at 52mm (2.05"). Consequently, April features more rainfall days compared to earlier months. The merciful winds drop further down in speed, compounding the effect of the humidity despite a marginal increase in temperature. Weather in April »Weather in May
Annai, Guyana, experiences May with heavier rainfall registering at 166mm (6.54"). This rainfall scenario combined with an upshot in relative humidity makes the environment quite humid. Sunshine hours stay constant, granting residents plenty of opportunity to engage in outdoor activities. Weather in May »Weather in June
June signifies a change in weather pattern, with the highest relative humidity at 82% and maximum rainfall at 186mm (7.32"). Reduced wind speed and warmer temperatures complement these conditions, engendering a predominantly wet atmosphere in Annai. Weather in June »Weather in July
The arrival of July in Annai, Guyana is marked by an extended spell of high rainfall, even though the figures drop slightly to 178mm (7.01"). Distinctly, wind speed also declines further, edging down to one of its lowest ratings in the year. Weather in July »Weather in August
In August, the rainfall in Annai decreases to 131mm (5.16"), marking a relief after the torrential downpours of the past few months. This month sees the wind gaining momentum, easing the humid conditions. Sunshine hours increase, and combined with the dip in rainfall, August spells the promise of sunnier days to the residents. Weather in August »Weather in September
The transition to September yields a positive shift in Annai, Guyana's weather. The precipitating factors indicating this shift includes the diminishing rainfall figures down to 66mm (2.6"). Consequently, September experiences the least rainfall days, coupled with an uptick in sunshine hours. Weather in September »Weather in October
October experiences cooler temperatures alongside slight increases in wind speed back at an average of 10km/h (6.2mph). Noticeably, rainfall becomes milder with the figures tumbling down further to 55mm (2.17"). With the reduced rainfall days and sustained sunshine hours, the city of Annai anticipates more crisp, fall-like weather conditions. Annai, Guyana, experiences an average high-temperature of a still tropical 33.7°C (92.7°F) in October, marking an insignificant shift from 32.5°C (90.5°F) in September. Weather in October »Weather in November
Annai, Guyana welcomes November with slightly lower temperatures, giving residents a much-needed break from the persistent warmth. Interestingly, this month sees a reduction in pressure while the wind speed picks up slightly. Rainfall continues to decrease with the figure recorded at 50mm (1.97"), providing the sprawling metropolis with a respite from its regular, wet pattern. The onset of November brings an average high-temperature of a still tropical 33.5°C (92.3°F), nearly matching the October temperature. Weather in November »Weather in December
Finally, December festivities in Annai incorporate cooler temperatures and a drier climate with the rainfall figures resting at 19mm (0.75"), the lowest in the year. The city sees a sharp increase in wind speed which, when coupled with the longer sunshine hours, contributes to traditional end-of-year celebrations. Weather in December »Updated: Feb 19, 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
January is the month with the least rainfall. Rain falls for 6 days and accumulates 9mm (0.35") of precipitation.
Throughout the year, in Annai, Guyana, there are 204.4 rainfall days, and 941mm (37.05") of precipitation is accumulated.
January through August, October through December are months without snowfall in Annai, Guyana.
In Annai, Guyana, during the entire year, snow aggregates up to 1mm (0.04").
January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index.
March is the warmest month, with the temperature often reaching an average high of 34.5°C (94.1°F) and an average low of 23.9°C (75°F).
The least humid month is March, with an average relative humidity of 59%.
The months of June and July are noted for their lowest temperatures in Annai, with an average high-temperature of 30°C (86°F).
June and July, with an average relative humidity of 82%, are most humid months in Annai.
The month with the most rainfall in Annai, Guyana, is June, when the rain falls for 26.9 days and typically aggregates up to 186mm (7.32") of precipitation.
With an average of 12h and 18min of daylight, June has the longest days of the year in Annai, Guyana.
The month with the lowest UV index is June, with an average maximum UV index of 6.
With an average of 10.5h of sunshine, August has the most sunshine of the year in Annai.
The only month with snowfall is September.
The month with the most snowfall in Annai is September, when snow falls for 0.1 days and typically aggregates up to 1mm (0.04") of snow.
The month with the shortest days is December, with an average of 11h and 54min of daylight.
Annai does not observe Daylight Saving Time (DST). -04 timezone is used throughout the entire year.
December has the least sunshine of the year, with an average of 7.8h of sunshine.
Average temperature
Annai, Guyana
The warmest month (with the highest average high temperature) is March (34.5°C).
The months with the lowest average high temperature are June and July (30°C).
The month with the highest average low temperature is April (24°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).
Average pressure
Annai, Guyana
- Average pressure in January:
1010.9mbar - Average pressure in February:
1010.6mbar - Average pressure in March:
1010.6mbar - Average pressure in April:
1010.9mbar - Average pressure in May:
1011.7mbar - Average pressure in June:
1012.8mbar
- Average pressure in July:
1012.9mbar - Average pressure in August:
1012.2mbar - Average pressure in September:
1011.2mbar - Average pressure in October:
1009.6mbar - Average pressure in November:
1008.8mbar - Average pressure in December:
1010mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed
Annai, Guyana
- Average wind speed in January:
15.6km/h - Average wind speed in February:
16.3km/h - Average wind speed in March:
16.1km/h - Average wind speed in April:
13.9km/h - Average wind speed in May:
11.1km/h - Average wind speed in June:
8.8km/h
- Average wind speed in July:
7.2km/h - Average wind speed in August:
7.3km/h - Average wind speed in September:
8.4km/h - Average wind speed in October:
10km/h - Average wind speed in November:
11.1km/h - Average wind speed in December:
14.3km/h
The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest month (with the lowest average wind speed) is July (7.2km/h).
Average humidity
Annai, Guyana
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is March (59%).
Average rainfall
Annai, Guyana
The wettest month (with the highest rainfall) is June (186mm).
The driest month (with the least rainfall) is January (9mm).
Average rainfall days
Annai, Guyana
- Average rainfall days in January:
6 days - Average rainfall days in February:
8.1 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
24.2 days - Average rainfall days in June:
26.9 days
- Average rainfall days in July:
27.8 days - Average rainfall days in August:
23.8 days - Average rainfall days in September:
20 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is July (27.8 days).
The month with the least rainy days is January (6 days).
Average snowfall
Annai, Guyana
The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days
Annai, Guyana
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight / Average sunshine
Annai, Guyana
- Average daylight in January:
11h and 54min - Average daylight in February:
12h and 0min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 12min - Average daylight in May:
12h and 18min - Average daylight in June:
12h and 18min
- Average daylight in July:
12h and 18min - Average daylight in August:
12h and 12min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 54min - Average daylight in December:
11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January:
9h and 0min - Average sunshine in February:
8h and 36min - Average sunshine in March:
8h and 54min - Average sunshine in April:
9h and 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 48min - Average sunshine in October:
9h and 18min - Average sunshine in November:
9h and 0min - Average sunshine in December:
7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).
Average sunshine days
Annai, Guyana
- Average sunshine days in January:
22.4 days - Average sunshine days in February:
18 days - Average sunshine days in March:
19 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
5.6 days - Average sunshine days in June:
1.9 days
- Average sunshine days in July:
2.1 days - Average sunshine days in August:
5 days - Average sunshine days in September:
7.2 days - Average sunshine days in October:
12.7 days - Average sunshine days in November:
11.9 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is June (1.9 days).
Average UV index
Annai, Guyana
The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).
Average cloud cover
Annai, Guyana
The month with the most cloud cover is May (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility
Annai, Guyana
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
