Retalhuleu Climate by Month
Retalhuleu, Guatemala
Hot all year, with a rainy season from June to October.
Hot all year, with a rainy season from June to October: that's Retalhuleu's climate in short. Expect highs of 96°F (35°C) in March and 90°F (32°C) in October, with the coldest nights (January) near 68°F (20°C). It gets 94 in (2396 mm) of rain a year, 78% of it from June to October. January and February are almost completely dry.
- Warmest month
- 96°F(35°C)
- Average high, March
- Coldest nights
- 68°F(20°C)
- Average low, January
- Rain per year
- 94 in(2396 mm)
- Wettest: October
- Humidity
- 70%
- Sunniest: March
Best and worst months in Retalhuleu
Best for weatherThe most comfortable weather comes from December to February, with highs around 94°F (34°C) and almost no rain.
Least pleasantSeptember and October are the least pleasant; October is the wettest, with 17 in (435 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in December.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Retalhuleu weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 94°F(34°C) | 68°F(20°C) | 0.3 in(7 mm) | 61% | 5.1 |
| FebFebruaryBest | 95°F(35°C) | 69°F(20°C) | 0.4 in(9 mm) | 59% | 5.7 |
| MarMarch | 96°F(35°C) | 71°F(22°C) | 1.3 in(34 mm) | 62% | 5.8 |
| AprApril | 95°F(35°C) | 72°F(22°C) | 3.3 in(84 mm) | 66% | 5.6 |
| MayMay | 93°F(34°C) | 74°F(23°C) | 11 in(267 mm) | 72% | 5.6 |
| JunJune | 91°F(33°C) | 73°F(23°C) | 16 in(408 mm) | 77% | 5.5 |
| JulJuly | 92°F(33°C) | 73°F(23°C) | 11 in(273 mm) | 76% | 5.7 |
| AugAugust | 92°F(33°C) | 73°F(23°C) | 13 in(332 mm) | 77% | 5.6 |
| SepSeptember | 91°F(33°C) | 72°F(22°C) | 17 in(427 mm) | 77% | 5.2 |
| OctOctober | 90°F(32°C) | 72°F(22°C) | 17 in(435 mm) | 78% | 4.8 |
| NovNovember | 91°F(33°C) | 71°F(21°C) | 4.1 in(104 mm) | 72% | 4.8 |
| DecDecemberBest | 93°F(34°C) | 68°F(20°C) | 0.6 in(16 mm) | 65% | 4.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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