diff --git a/dive.c b/dive.c
index 8c81a3d51..9bac25eee 100644
--- a/dive.c
+++ b/dive.c
@@ -37,6 +37,8 @@ struct dive *fixup_dive(struct dive *dive)
 	int starttemp = 0, endtemp = 0;
 	int maxdepth = 0, mintemp = 0;
 	int lastdepth = 0;
+	int lasttemp = 0;
+	temperature_t *redundant_temp = NULL;
 
 	for (i = 0; i < dive->samples; i++) {
 		struct sample *sample = dive->sample + i;
@@ -60,6 +62,21 @@ struct dive *fixup_dive(struct dive *dive)
 				startpress = press;
 		}
 		if (temp) {
+			/*
+			 * If we have consecutive identical
+			 * temperature readings, throw away
+			 * the redundant ones. We care about
+			 * the "edges" only.
+			 */
+			if (lasttemp == temp) {
+				if (redundant_temp)
+					redundant_temp->mkelvin = 0;
+				redundant_temp = &sample->temperature;
+			} else {
+				redundant_temp = NULL;
+				lasttemp = temp;
+			}
+
 			endtemp = temp;
 			if (!starttemp)
 				starttemp = temp;