San Sebastian, Retalhuleu Climate
Guatemala
Pop. 29,167 Elev. 313 m / 1,027 ft
TZ: America/Guatemala (UTC-6) ·
Temperatures in San Sebastian remain warm year-round, from 72°F (22°C) in January to 92°F (33°C) in March. Humidity pushes the summer feels-like temperature to around 118°F (48°C). Precipitation occurs on roughly 132 days per year (85.8 in / 2181 mm total). The city averages 98 sunny days per year and around 111 thunderstorm days. Ocean water temperatures reach 88°F (31°C) in summer.
| Temperature | 34°C (92°F) high | 22°C (72°F) low |
| Feels like | 48°C (118°F) high | 22°C (72°F) low |
| Rain | 132 days | 2181 mm (85.8 in) /yr |
| Sky | 98 sunny | 111 stormy |
| Wind | 0.3 m/s (0.7 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Nov, Dec
Sky & Air by Month
Cloud cover (%)
26
Jan 42
Feb 44
Mar 54
Apr 78
May 92
Jun 73
Jul 68
Aug 84
Sep 82
Oct 55
Nov 41
Dec Humidity (%)
71
Jan 68
Feb 66
Mar 73
Apr 78
May 82
Jun 76
Jul 79
Aug 82
Sep 84
Oct 78
Nov 77
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 6 km Retalhuleu Airport (RER)
Ski resort 1,810 km
National park 21 km
Mountain peak
(3,520 m) 24 km Volcán Santo Tomás o Cerro Pecul
Hospital 3 km
Hiking trail 100 km Ascenso volcán de agua
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°C 90°F | 22°C 72°F | 36 mm 1.4 in | — | 25 |
| February | 32°C 90°F | 23°C 74°F | 29 mm 1.2 in | — | 15 |
| March | 34°C 92°F | 23°C 74°F | 29 mm 1.1 in | — | 17 |
| April | 33°C 91°F | 24°C 75°F | 182 mm 7.2 in | — | 6 |
| May | 33°C 92°F | 24°C 76°F | 220 mm 8.7 in | — | 0 |
| June | 31°C 88°F | 23°C 74°F | 420 mm 16.5 in | — | 0 |
| July | 32°C 90°F | 24°C 75°F | 205 mm 8.1 in | — | 4 |
| August | 32°C 90°F | 23°C 74°F | 256 mm 10.1 in | — | 2 |
| September | 31°C 89°F | 23°C 74°F | 327 mm 12.9 in | — | 0 |
| October | 31°C 87°F | 23°C 74°F | 322 mm 12.7 in | — | 1 |
| November | 31°C 88°F | 23°C 73°F | 69 mm 2.7 in | — | 10 |
| December | 31°C 87°F | 23°C 73°F | 86 mm 3.4 in | — | 18 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 25 | 1 |
| February | 15 | 0 |
| March | 17 | 0 |
| April | 6 | 6 |
| May | 0 | 13 |
| June | 0 | 16 |
| July | 4 | 12 |
| August | 2 | 16 |
| September | 0 | 19 |
| October | 1 | 19 |
| November | 10 | 4 |
| December | 18 | 5 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 29°C 84°F | 28°C 83°F |
| February | 29°C 85°F | 29°C 83°F |
| March | 30°C 85°F | 29°C 84°F |
| April | 31°C 87°F | 30°C 85°F |
| May | 31°C 87°F | 30°C 86°F |
| June | 30°C 87°F | 29°C 85°F |
| July | 31°C 87°F | 31°C 87°F |
| August | 31°C 88°F | 30°C 87°F |
| September | 31°C 87°F | 30°C 85°F |
| October | 30°C 86°F | 29°C 84°F |
| November | 30°C 86°F | 29°C 85°F |
| December | 30°C 85°F | 29°C 84°F |