San Ignacio weather in August

In August, San Ignacio sees average daytime highs of 33°C and overnight lows near 23°C, with 112 mm of rain across 20.4 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 25% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is San Ignacio's 8th-clearest and 7th-windiest month. For the whole year in context, see San Ignacio's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
112 mm
20.4 wet days
Daylight
12 h 36 min
5:43 AM – 6:18 PM
Cloud cover
64%
8th clearest
Wind
9 km/h
7th windiest
Solar energy
5.54 kWh/m²
Travel score
2.7
out of 10

San Ignacio is capital of the Cayo district.

Density
2,104/km²
people per km²
Founded
1800

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical August day in San Ignacio reaches about 33°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323
313323

How August really feels in San Ignacio

Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San Ignacio weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°501311.16.0
Feb29° / 19°308.911.45.5
Mar32° / 20°338.211.94.5
Apr34° / 22°387.312.43.5
May34° / 24°8913.912.82.8
Jun32° / 24°15122.7132.7
Jul32° / 23°9821.412.93.0
Aug33° / 23°11220.412.62.7
Sep32° / 23°14523.712.12.5
Oct30° / 22°14821.611.63.4
Nov29° / 20°9815.611.24.9
Dec28° / 19°5713.6115.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35149
45050
54951
64852
74753
84753
94753
104654
114555
124555
134456
144456
154456
164357
174357
184258
194258
204159
214159
224159
234060
244060
254060
264060
273961
283862
293862
303862
313763

Chance of precipitation in August

Any precipitation

San Ignacio gets around 112 mm of rain over 20.4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 67% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
364
464
564
664
764
864
964
1064
1165
1265
1366
1466
1567
1667
1767
1868
1968
2068
2168
2269
2369
2469
2570
2670
2771
2871
2972
3072
3172

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
118019
217920
317920
417821
517821
617722
717722
817623
917623
1017623
1117623
1217623
1317623
1417623
1517623
1617623
1717623
1817623
1917524
2017524
2117524
2217425
2317326
2417326
2517227
2617227
2717128
2817128
2917029
3017029
3117029

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 48 min at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over August. Sunrise moves from 5:39 AM to 5:46 AM, and sunset from 6:26 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:396:26
212.85:396:25
312.85:406:25
412.75:406:24
512.75:406:24
612.75:406:23
712.75:416:23
812.75:416:22
912.75:416:22
1012.75:416:21
1112.75:426:21
1212.65:426:20
1312.65:426:20
1412.65:426:19
1512.65:436:18
1612.65:436:18
1712.65:436:17
1812.65:436:17
1912.55:446:16
2012.55:446:15
2112.55:446:15
2212.55:446:14
2312.55:446:13
2412.55:446:12
2512.45:456:12
2612.45:456:11
2712.45:456:10
2812.45:456:09
2912.45:456:09
3012.45:456:08
3112.45:466:07

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.54 kWh/m².

For context, solar energy here swings from a low near 3.62 kWh/m² to a high of 6.02 kWh/m² in April across the year — August's 5.54 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in August

Is August a good time to visit San Ignacio?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.7
Sightseeing
10th-best month of the year
4.7
Beach & pool
10th-best month of the year

August is a weaker month for outdoor sightseeing in San Ignacio.

What to pack for San Ignacio in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, San Ignacio sees daytime highs around 33°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in San Ignacio in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Ignacio peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 10UV 13Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May10Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in San Ignacio in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in San Ignacio is worst in May — around 30 µg/m³ PM2.5 (moderate), about 5.2× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1529 µg/m³Dec 186 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar10Good
Apr28Moderate
May30Moderate
Jun26Moderate
Jul28Moderate
Aug19Moderate
Sep14Moderate
Oct10Good
Nov7Good
Dec6Good
Location & terrain

Where is San Ignacio?

San Ignacio sits at 17.2°N, 89.1°W, 0 m above sea level, in Belize. The nearest listed city is Melchor de Mencos, 14 km away.

BelmopanCrooked TreeHopkinsDangriga

Topography around San Ignacio

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Ignacio.

Within 3 km, the terrain around San Ignacio has only modest variations in elevation — a maximum elevation change of 131 m around an average of 92 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 451 m; within 80 km, large variations in elevation — a maximum elevation change of 1,118 m.

The land around San Ignacio is covered by trees (55%) and grassland (24%) within 3 km, trees (66%) and grassland (29%) within 16 km, and trees (79%) within 80 km.

3 km
131 m
16 km
451 m
80 km
1,118 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Melchor de Mencos 14 km · Belmopan 34 km · Crooked Tree 89 km · Hopkins 90 km · Dangriga 91 km · Flores 92 km · San Benito 94 km · Poptún 99 km

Belize travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / G
110 / 220 V · 60 Hz
Prices
≈ 53% of US
price level, 2025
GDP per capita
$7,865
2025
Happiness
6.7 / 10
World Happiness, 2025
Homicide rate
28.1
per 100k, 2022
Road deaths
22.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Roman Catholic 40%Protestant 32%none 16%other 11%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Ignacio (17.1588°, -89.0696°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).